Agrawal, N., Bornholdt, C., Franke, D., Hoffmann, D., Kappe, F.
Electro-absorptive long wavelength (Lambda = 1550 nm) semiconductor modulators with low drive voltage are indispensable components for future high bit-rate communication networks. Recently,...
Bornholdt, C., Troppenz, U., Kreissl, J., Rehbein, W., Sartorius, B., Schell, M., ...
A passive feedback section 1.5 µ DFB laser is applied as 40 Gbit/s transmitter. The error free transmission over 320 km SMF demonstrates the good performance of this compact and low cost device.
40 Gbit/s directly modulated passive feedback laser (2008)
Troppenz, U., Kreissl, J., Rehbein, W., Bornholdt, C., Sartorius, B., Schell, M.
High speed directly modulated lasers are key devices for compact, low cost transmitters. In this paper we describe the mechanism of modulation bandwidth enhancement by passive feedback sections and...
High-speed directly and indirectly modulated VCSELs (2008)
Hopfer, F., Mutig, A., Strittmatter, A., Fiol, G., Moser, P., Bimberg, D., ...
Recent results on directly modulated VCSELs, including high efficiency 980 nm devices operating error free at 20 Gbit/s without current adjustment between 25 and 85°C, will be reviewed. In addition,...
Driessen, A., Geuzebroek, D.H., Klein, E.J., Dekker, R., Stoffer, R., Bornholdt, C.
The propagation of short lightpulses in waveguiding structures with optical feedback, in our case optical microresonators, has been studied theoretically and experimentally. It appears that,...
Hopfer, F., Mutig, A., Fiol, G., Kuntz, M., Shchukin, V.A., Haisler, V.A., ...
980 nm vertical-cavity surface-emitting lasers based on submonolayer growth of quantum dots show clearly open eyes and operate error free with bit error rates better than 10(-12) at 25 and 85 degrees...
Gubenko, A., Krestnikov, I., Livshtis, D., Mikhrin, S., Kovsh, A., West, L., ...
A comb-generating laser suitable for DWDM application is demonstrated on the basis of a multimode quantum-dot laser. Bit error rate < 10(-13) at 10 Gbit/s external modulation was measured for 10...
Sartorius, B., Bottcher, J., Bornholdt, C., Kunzel, H., Röhle, H., Schlak, M.
A THz system based on fibre connected compact InP-modules is proposed. The hereby missing key device, the photoconductor for coherent THz detection is developed. The functionality is demonstrated in...
Driessen, A., Geuzebroek, D.H., Klein, E.J., Dekker, R., Stoffer, R., Bornholdt, C.
The propagation of short lightpulses in waveguiding structures with optical feedback, in our case optical microresonators, has been studied theoretically and experimentally. It appears that,...
Halbleiterlaser und Verfahren zum Betreiben eines Halbleiterlasers (2007)
Sartorius, B., Kreissl, J., Troppenz, U., Bornholdt, C., Möhrle, M.
WO 2009036904 A1 UPAB: 20090409 NOVELTY - The semiconductor laser has an active region (1) which is designed as a distributed feedback laser (DFB) laser, and a passive resonator section (2), which is...
20-Gb/s direct modulation of 980 nm VCSELs based on submonolayer deposition of quantum dots (2006)
Hopfer, F., Mutig, A., Fiol, G., Kuntz, M., Mikhrin, S. S., Krestnikov, I. L., ...
Novel concept for all-optical clock recovery from NRZ format PRBS data streams (2006)
Slovak, J., Bornholdt, C., Bauer, S., Kreissl, J., Schlak, M., Sartorius, C.
Synchronization of a self-pulsating phaseCOMB-laser to NRZ data signals is demonstrated for the first time. The clock signal extracted from 40 Gb/s PRBS stream shows a good timing stability in a wide...
Slovak, J., Bornholdt, C., Kreissl, J., Bauer, S., Biletzke, M., Schlak, M., ...
All-optical clock recovery from 40-Gb/s nonreturn-to-zero (NRZ) pseudorandom binary sequence data streams based on self-pulsating lasers is presented. A compact preprocessing circuit is utilized to...
Cascadability and regenerative properties of SOA all-optical DPSK wavelength converters (2006)
Vorreau, P., Marculescu, A., Wang, J., Böttger, G., Sartorius, B., Bornholdt, C., ...
A novel all-optical differential phase-shift keying wavelength converter based on semiconductor optical amplifier nonlinearities is demonstrated in the 25- to 40-Gb/s range with pseudorandom binary...
All-optical DPSK wavelength converter based on MZI with integrated SOAs and phase shifters (2006)
Sartorius, B., Bornholdt, C., Slovak, J., Schlak, M., Schmidt, C., Marculescu, A., ...
An integrated MZI-SOA device is developed for all-optical wavelength conversion of DPSK signals. The functionality is investigated close to 40 Gb/s and error free operation with less then 1 dB...
Behavior of picosecond and femtosecond pulses in SiO2/Si3N4 microring resonator filters (2005)
Geuzebroek, D.H., Dekker, R., Klein, E.J., Bornholdt, C., Niehusmann, J., Driessen, A.
40 Gbit/s reconfigurable optical add-drop multiplexer based on microring resonators (2005)
Geuzebroek, D.H., Klein, E.J., Kelderman, H., Bornholdt, C., Driessen, A.
Optical comb generator using pulse compression in ultra-long semiconductor amplifiers (2005)
Bornholdt, C., Slovak, J., Sartorius, B., Schlak, M., Schmidt, C.
A novel pulse compression technique using an ultra-long semiconductor optical amplifier is presented. High quality 2ps pulses were generated out of 40GHz sinusoidal signal of a PhaseCOMB-laser...
Slovak, J., Tekin, T., Bornholdt, C., Sartorius, B., Lach, E., Schmidt, M., ...
A self-pulsating PhaseCOMB-laser is successfully applied for triggering of 170.6:42.7 Gbit/s DEMUX-circuit in 8 x 170.6 Gbit/s DWDM field experiment. An error free detection of the demultiplexed PRBS...
Mitigation of PMD @ 40 Gb/s using an optically clocked 3R regenerator (2005)
Bornholdt, C., Slovak, J., Schmidt, C., Sartorius, B.
Mitigation of PMD distortions is performed at 40 Gb/s using a wavelength preserving semiconductor based all-optical 3R regenerator. The mitigation of PMD is successfully demonstrated by eye analysis...
Behaviour of picosecond and femtosecond pulses in SiO2/Si3N4 microring resonator filters (2005)
Geuzebroek, D.H., Dekker, Ing. R., Klein, Ir. E.J., Bornholdt, C., Niehusmann, J., Driessen, Prof.dr. A.
When pulse lengths are shorter than the roundtrip time of a microring resonator filter, interference effects in the spectral response as shown with cw signals (both through and drop) are not that...
Behaviour of picosecond and femtosecond pulses in SiO2/Si3N4 microring resonator filters (2005)
Geuzebroek, D.H., Dekker, R., Klein, E.J., Bornholdt, C., Niehusmann, J., Driessen, A.
When pulse lengths are shorter than the roundtrip time of a microring resonator filter, interference effects in the spectral response as shown with cw signals (both through and drop) are not that...
Behaviour of picosecond and femtosecond pulses in $SiO_2/Si_3N_4$ microring resonator filters (2005)
Geuzebroek, D.H., Dekker, R., Klein, E.J., Bornholdt, C., Niehusmann, J., Driessen, A.
When pulse lengths are shorter than the roundtrip time of a microring resonator filter, interference effects in the spectral response as shown with cw signals (both through and drop) are not that...
40 Gbit/s Reconfigurable Optical Add-Drop Multiplexer based on Microring Resonators (2005)
Geuzebroek, D.H., Klein, E.J., Kelderman, H., Bornholdt, C., Driessen, A.
A fully pigtailed and packaged ultra-compact reconfigurable 4-channel optical add-drop multiplexer is shown based on SiO2/Si3N4 microring resonators. Measurements demonstrate full add/drop capability...
Dynamic behavior of optically clocked 4 mm UL-SOA at 40 Gbit/s (2004)
Slovak, J., Bornholdt, C., Busolt, U., Bramann, G., Sartorius, B.
Semiconductor optical amplifiers have been applied successfully for optical signal processing, e. g. optical switching, wavelength conversion, demultiplexing, signal regeneration. The principle of...
Semiconductor-based all-optical 3R regenerator demonstrated at 40 Gbit/s (2004)
Bornholdt, C., Slovak, J., Sartorius, B.
A novel 'optically clocked' 3R regenerator (OC-3R) preserving the data wavelength and logic is presented. It is based on two compact semiconductor components, avoiding expensive and bulky EDFAs. The...
Self-pulsating multi-section DFB lasers and their applications (2003)
Bauer, S., Brox, O., Bornholdt, C., Slovak, J., Kreissl, J., Sartorius, B.
Self-pulsating DFB lasers are devices with a unique combination of features. An overview for these devices is given and their key features are outlined. Examples show their potential for applications...
Novel all-optical 3R-signal regenerator at 10 Gbit/s (2003)
Slovak, J., Bornholdt, C., Sartorius, B., Nolting, H.P.
A true all-optical 3R regenerator based on the "Alternating Data Clock" scheme is assembled applying compact semiconductor devices. Bit error rate measurements at 10Gbit/s show a negative penalty of...
Jitter analysis of all-optical clock recovery at 40 GHz (2003)
Bornholdt, C., Slovak, J., Möhrle, M., Sartorius, B.
The jitter of optical clock recovery based on self-pulsating PhaseCOMB-lasers is analyzed using a new generation sampling scope. An excellent restoration function of the clock is demonstrated at 40...
Semiconductor based true all-optical synchronous modulator for 3R regeneration (2003)
Tekin, T., Bornholdt, C., Slovak, J., Schlak, M., Sartorius, B., Kreissl, J., ...
Verfahren zur Ansteuerung eines 3R Regenerators (2002)
Sartorius, B., Bauer, S., Bornholdt, C., Brox, O.
WO 200284901 A UPAB: 20030111 NOVELTY - Single data signal pulses (1) and clock signal pulses (2) are operated. Combined data/clock pulses (4) are beamed into a discriminator element, delayed by half...
All optical clock recovery at 80 GHz and beyond (2001)
Bornholdt, C., Bauer, S., Mohrle, M., Sartorius, B.
Modelling of self-pulsations based on phase controlled mode beating (PhasCOMB) shows a speed potential of 160 GHz. A first device is fabricated. A frequency tuning range of 25 to 82 GHz is obtained...
40 GHz optical clock recovery for application in asynchronous networks (2001)
Sartorius, B., Bornholdt, C., Bauer, S., Mohrle, M.
Locking and unlocking to data packets is analysed for a 40 GHz optical clock. The clock locks within 3 ns to data containing 25% of "1" bits and it holds synchronisation for "0" sequences of 10 ns....
Schlaak, W., Mekonnen, G.G., Bornholdt, C., Schramm, C., Umbach, A., ...
A combination of an InP-based monolithically integrated photoreceiver with a spot size converter is presented. A total receiver conversion gain of more than 1A/W, an extended bandwidth of 47 GHz for...
Optical 3R regenerator based on Q-switched laser (2001)
Brox, O., Bauer, S., Bornholdt, C., Hoffmann, D., Mohrle, M., Sahin, G., ...
A polarization and wavelength insensitive Q-switched laser is applied in a 3R regenerator experiment. The optical regenerator shows a negative power penalty of -2 dB at a data rate of 10 Gb/s RZ. The...
Detuned grating multisection-RW-DFB lasers for high-speed optical signal processing (2001)
Mohrle, M., Sartorius, B., Bornholdt, C., Bauer, S., Brox, O., Sigmund, A., ...
We present a detailed description and a first theoretical study of an improved concept for high-frequency self-pulsations (SPs) in multisection (MS)-DFB lasers with an integrated phase tuning...
Laser based 3R regeneration for high-speed all-optical networks (2001)
Bauer, S., Brox, O., Bornholdt, C., Sartorius, B., Mohrle, M.
Novel devices for scalable signal processing in all-optical networks are presented. The devices are based on multisection DFB-lasers and can be used for high speed clock recovery and decision...
Dual-mode self-pulsating laser for broadband hybrid fibre radio-systems (2000)
Grosskopf, G., Rohde, D., Eggemann, R., Bornholdt, C., Bauer, S., Sartorius, B., ...
A self-pulsating laser is presented as a novel transmitter source for millimetre wave generation. The system performance is evaluated by bit error rate measurements in transmission experiments...
System application of 40 GHz all-optical clock in a 40 Gbit/s optical 3R regenerator (2000)
Sartorius, B., Bornholdt, C., Bauer, S., Mohrle, M., Brindel, P., Leclerc, O.
A new all-optical clock operating from 6 to 46 GHz is presented and tested in 40 Gbit/s soliton 3R regenerator. Error-free single-channel 40 Gbit/s loop transmission is demonstrated over more than...
Ultrafast locking optical clock for IP packet switching applications (2000)
Bauer, S., Bornholdt, C., Brox, O., Hoffmann, D., Mohrle, M., Sahin, G., ...
The locking time of an all-optical clock is investigated. Self-pulsating, DFB lasers with detuned gratings are applied the clock locks within 10 "one" bits (1 ns) to injected data packets and keeps...
Grosskopf, G., Rohde, D., Eggemann, R., Bornholdt, C., Bauer, S., Sartorius, B., ...
In two experimental hybrid fiber radio systems the millimeter-wave carriers for the radio links at 40 and 60 GHz were remotely generated by optical heterodyning. In the first experiment at 40 GHz the...
Optical millimeter-wave generation and wireless data transmission using a dual-mode laser (2000)
Grosskopf, G., Rohde, D., Eggemann, R., Bauer, S., Bornholdt, C., Mohrle, M., ...
A dual-mode self-pulsating laser is presented as a transmitter source for millimeter wave generation in an experimental hybrid fiber radio system. The performance is evaluated by bit-error rate...
Self-pulsating DFB laser for all-optical clock recovery at 40 Gbit/s (2000)
Bornholdt, C., Sartorius, B., Schelbase, S., Mohrle, M., Bauer, S.
A first demonstration of a 40 Gbit/s all optical clock recovery module based on a design for a novel self-pulsating DFB laser is presented. The role of detuned gratings in the new device concept is...
All-optical clock recovery at 40 Gbit/s (1999)
Bornholdt, C., Sartorius, B., Mohrle, M.
A first demonstration of an all-optical clock recovery module based on a new generation of self-pulsating DFB-lasers to cover the 40 GHz range is reported. This paper reviews the device design and...
Towards the all-optical 3R regenerator: Performance of the optical clock (1999)
Sartorius, B., Bornholdt, C., Brox, O., Feiste, U., Mohrle, M.
An optical clock based on a self-pulsating DFB laser is applied and tested by BER measurements at 10 Gbit/s RZ in an experiment that is equivalent to an all-optical 3R regenerator with an ideal...
Traveling wave electrodes for 50 GHz operation of opto-electronic devices based on InP (1999)
Mori, L., Hoffmann, D., Bornholdt, C., Mekonnen, G.G., Reier, F.
We report on the design, fabrication and performance electro-optic switches based on a Mach-Zehnder interferometer with traveling wave electrodes. Our work aimed at increasing the bandwidth of such...
Bit-rate flexible all-optical clock recovery (1999)
Sartorius, B., Bornholdt, C., Brox, O., Ehrke, H.J., Hoffmann, D., Ludwig, R., ...
A 5 GHz to 20 GHz bit-rate flexible all-optical clock is presented. 10 GHz and 20 GHz pulse trace analysis and 8 Gbit/s to 11 Gbit/s bit-error-rate measurements demonstrate the system qualification....
Opto-electronic packaging for broadband high speed (40 Gb/s) optical demultiplexer chip (1998)
Rosin, T., Bornholdt, C., Hoffmann, D., Burghardt, R.
Summary form only given. We described a simple, quick, robust, and reusable opto-electronic packaging method for devices with narrow-spaced fibers for use in laboratory test beds and field tests.
System performance of an all-optical clock recovery module (1998)
Sartorius, B., Bornholdt, C., Brox, O., Ehrke, H.J., Hoffmann, D., Ludwig, R., ...
The system performance of an all-optical clock recovery module based on a self-pulsating DFB laser is characterized at 10 Gb/s. Penalty free operation is verified relative to a synthesizer in back to...
Morl, L., Bornholdt, C., Hoffmann, D., Matzen, K., Mekonnen, G.G., Reier, F.W.
In this work high bandwidth and polarization independence were tackled by employing a travelling wave electrode and a tunnelling barrier QW (TBQW) structure, respectively, as the basic guidelines in...
Analysis and compression of pulses emitted from an all-optical clock recovery module (1998)
Sartorius, B., Bornholdt, C., Brox, O., Mohrle, M., Brindel, P., Leclerc, O., ...
The pulses emitted from an all-optical clock recovery module based on a self-pulsating DFB laser are analysed using a streak camera. Pulse compression using fibres with negative dispersion is...
Diez, S., Schmidt, C., Hoffmann, D., Bornholdt, C., Sartorius, B., Weber, H.G., ...
An all-optical sampling technique that allows the simultaneous measurement of optical pulse intensities and wavelengths with a temporal resolution of about 1 ps is introduced. Using four-wave mixing...
All-optical clock recovery module based on self-pulsating DFB laser (1998)
Sartorius, B., Bornholdt, C., Brox, O., Ehrke, H.J., Hoffmann, D., Ludwig, R., ...
An all-optical clock recovery module is developed and tested in a 100 Gbit/s 105 km transmission experiment. A penalty free function of the optical clock relative to an electronic phase-locked loop...
Reier, F.W., Bornholdt, C., Hoffmann, D., Morl, L., Weinert, C.M.
The realisation of TBQW structures requires material of optimised optical, electrical and structural properties. Therefore investigations on the MOVPE growth conditions were carried out which is be...
Reier, F.W., Bornholdt, C., Hoffmann, D., Morl, L., Weinert, C.M.
Large electro-optic modulation is available in InP based photonic devices for communication systems working in the 1.55 mu m window. This is because the quantum confined Stark effect (QCSE) can be...
Reier, F.W., Bornholdt, C., Hoffmann, D., Kappe, F., Morl, L.
In this work we have investigated the MOVPE growth of multi-period InGaAsP/InP quantum confined Stark effect (QCSE) layer structures and provide evidence that the QCSE response can be influenced by...
Hoffman, D., Bornholdt, C., Kappe, F., Morl, L., Sigmund, A.
Summary form only given. We have demonstrated for the first time in a single 1*2 space switch based on absorption and refractive index change induced by the quantum confined Stark effect (QCSE) in...
Novel digital optical switch with crosstalk below -40 dB based on absorptive switching (1995)
Hoffmann, D., Bornholdt, C., Kappe, F., Morl, L.
We report a novel space switch carried out in dilated Benes architecture. The switch makes use of absorption and refractive index change provided in MQW layers and shows an extinction ratio of 40 dB.
Fast 2*2 Mach-Zehnder optical space switches using InGaAsP-InP multiquantum-well structures (1995)
Agrawal, N., Weinert, C.M., Mekonnen, G.G., Franke, D., Bornholdt, C., ...
We report fast 2*2 Mach-Zehnder optical space switches by using quantum confined Stark effect in InGaAsP-InP multiquantum-well structures that are ultracompact, require low voltages, and employ a...
2*2 optical space switches using InGaAsP/InP MQW structures for 10-GHz applications (1994)
Agrawal, N., Franke, D., Weinert, C.M., Bornholdt, C.
Summary form only given. In this paper we demonstrate InGaAsP-InP MQW 2*2 optical space switches that show excellent dc switching performance and are capable of operation at and beyond 10 GHz. Both...
High-speed optical 2*2 space switch on InP with travelling wave electrodes (1994)
Kappe, F., Bornholdt, C., Mekonnen, G.G., Ehrke, H. J., Hoffmann, D.
Summary form only given. In conclusion, we have demonstrated for the first time a travelling wave driven balanced bridge modulator switch on InP with a bandwidth exceeding 15 GHz. This could be...
35 GHz bandwidth photonic space switch with travelling wave electrodes on InP (1994)
Kappe, F., Mekonnen, G.G., Bornholdt, C., Reier, F.W., Hoffman, D.
A 2*2 Mach-Zehnder interferometer based switch with a large optical bandwidth of 35 GHz is reported. The design and the characteristics of switches with travelling wave electrodes are discussed. The...
Agrawal, N., Reier, F.W., Bornholdt, C., Weinert, C.M., Li, K.C., Harde, P., ...
We report substantial progress in the growth of multi-quantum-well electron transfer optical modulator structures by metalorganic vapor phase epitaxy, which is made possible as a consequence of the...
Monolithic integrated wavelength duplexer-receiver on InP (1993)
Bornholdt, C., Trommer, D., Unterborsch, G., Venghaus, H., Weinert, C.M.
The monolithic integration of a detector stage comprising a photodiode and a field-effect transistor with a load resistor and a wavelength duplexer, realized in the GaInAsP/InP material system, is...
Integrated balanced mixer receiver on InP (1992)
Trommer, D., Bornholdt, C., Stenzel, R., Umbach, A., Unterborsch, G.
The authors present a balanced mixer receiver OEIC (optoelectronic integrated circuit) comprising an optical mixer, a balanced detector, and a low-noise electrical preamplifier stage. A current gain...
High resistivity, low loss InGaAlAs/InP optical waveguides grown by low-temperature MBE (1992)
Kunzel, H., Grote, N., Albrecht, P., Bottcher, J., Bornholdt, C.
The authors present a study of material properties relevant to optical waveguides of MBE (molecular-beam epitaxy) grown InGaAlAs ( gamma g=1.06 mu m) layers lattice-matched to InP. In particular, the...
Meander-type wavelength demultiplexer with weighted coupling (1992)
Venghaus, H., Bornholdt, C., Kappe, F., Weinert, C.M.
An experimental and theoretical investigation of meander-type wavelength demultiplexers with weighted coupling is reported. Numerical simulations have been performed combining a two-dimensional...
Low-temperature MBE-grown In0.52Ga0.18Al0.30As/InP optical waveguides (1992)
Kunzel, H., Grote, N., Albrecht, P., Bottcher, J., Bornholdt, C.
The MBE growth of In0.52Ga0.18Al0.30As ( lambda g=1.06 mu m) layers in the temperature range of 400-450 degrees C was demonstrated to give high-quality optical waveguides which not only exhibit low...
Integrated wavelength demultiplexer-receiver on InP (1992)
Bornholdt, C., Trommer, D., Unterborsch, G., Bach, H.G., Kappe, F., Passenberg, W., ...
A detector stage comprising a photodiode, a field-effect transistor, and a load resistor, and a wavelength demultiplexer have been monolithically integrated in the GaInAsP/InP material system. Chips...
Meander coupler: A novel structure for WDM-applications (1990)
Kappe, F., Bornholdt, C., Reier, F., Stenzel, R., Venghaus, H., ...
The authors have realized a novel filter in GaInAsP/InP, which is a codirectional asymmetric coupler with periodic variation of the coupling constant. The transmission exhibits a sinc2-dependence,...
WDM components on the basis of InGaAsP/InP directional couplers (1990)
Bornholdt, C., Kappe, F., Nolting, H.P., Stenzel, R., Venghaus, H., Weinert, C.M.
The paper describes the production of two wavelength-selective multiplexer/demultiplexer ( lambda -muldex) components intended to become parts of an integrated optical convertor for a bidirectional...
Meander coupler, a novel wavelength division multiplexer/demultiplexer (1990)
Bornholdt, C., Kappe, F., Muller, R., Reier, F., Stenzel, R., ...
The authors have realized a novel wavelength division multiplexer/demultiplexer based on rib waveguides in GaInAsP/InP. The device is a strongly asymmetric codirectional coupler with periodic...
Quality and applications of In(Ga)AlAs-layers (1989)
Schramm, C., Kunzel, H., Bornholdt, C., Su, L.M., Wehmann, H.H.
In the last few years the InGaAlAs material system has received increasing interest for application in integrated optoelectronic devices. The authors present an analysis of layer and surface quality...
Waveguide-integrated PIN photodiode on InP (1987)
Bornholdt, C., Doldissen, W., Fiedler, F., Kaiser, R., Kowalsky, W.
An InGaAs PIN photodiode was vertically integrated with an inverted optical rib waveguide in InGaAsP. Guided light was transferred to and absorbed by the photodiode at a rate of 0.07 dB/ mu m. For...
Electro-optic modulators in GaInAsP/InP (1986)
Krauser, J., Albrecht, P., Bornholdt, C., Doldissen, W., Niggebrugge, U., ...
The semiconductor material system InGaAsP on InP is being increasingly used for waveguide based electro-optic devices such as phase modulators, directional coupler modulators, and switches with the...
High-efficiency phase modulators in InGaAsP/InP (1985)
Bornholdt, C., Doldissen, W., Franke, D., Krauser, J., Niggebrugge, U., ...
For an electro-optical phase modulator in InGaAsP/InP, optimized by modelling calculations, a phase-shift of 8 deg/Vmm was achieved.
Nolting, H.P., Krauser, J., Albrecht, P., Bornholdt, C., Kaumanns, R., Schlak, M.
DE 3337492 A UPAB: 19930925 Device, with a light wave guiding layer of orientation in the propagation direction of the guided light wave which leads to addn. of the Pockels and Kerr effects, has a...
Novel simple method for determination of refractive index of optical monomode slab waveguides (1985)
A novel simple nondestructive interference method is proposed for measuring the refractive index of optical monomode slab waveguides and cladding layers of sufficient thickness. This method has been...
Light guiding and electrooptical modulation in InGaAsP/InP double heterostructures (1983)
Albrecht, P., Bach, H.G., Bornholdt, C., Doldissen, W., Franke, D., Grote, N., ...
The fabrication of long rig-waveguides in the InGaAsP system with low loss suitable for integrated optics has been demonstrated. Furthermore, the authors showed, for the first time, electrooptical...
Passive optical GaInAsP/InP waveguides (1983)
Bornholdt, C., Doldissen, W., Franke, D., Grote, N., Krauser, J., Niggebrugge, U., ...
The authors have fabricated GaInAsP/InP rib waveguides with lengths of up to 7 mm and widths between 2*5 and 10 mu m. The waveguides show low losses of alpha =1.38-1.84 cm-1 at a wavelength of 1.3 mu...