819 Hits in 6.5 sec

A temperature independent driver for Mach-Zehnder modulators

Shenghao Liu, Ke Li, Peter Wilson
2015 2015 IEEE International Symposium on Circuits and Systems (ISCAS)  
This paper describes a fully differential inductorless temperature independent laser driver for a Mach-Zehnder modulator (MZM).  ...  This driver (fabricated using a 130nm CMOS process) can achieve a differential output voltage swing of up to 4Vpp when driving a 50 Ohm Load at speeds of up to 12.5Gb/s across a temperature range 27 o  ...  In differential Mach-Zehnder modulators (MZM), the effects of temperature are not a particular problem, however the overall performance of a transmitter is affected by electronic laser driver circuit.  ... 
doi:10.1109/iscas.2015.7168923 dblp:conf/iscas/LiuLW15 fatcat:jjws2ha2nbcvld7rrwxkpihoja

Photoacoustic Hydrocarbon Spectroscopy Using a Mach-Zehnder Modulated cw OPO

Henry Bruhns, Yannick Saalberg, Marcus Wolff
2015 Sensors & Transducers  
In addition to the traditional modulation by a mechanical chopper a Mach-Zehnder modulator was set up for this wavelength range and used to shape the OPO beam.  ...  The differences between the two modulation methods are explained and the advantages of the newly introduced Mach-Zehnder modulator are elaborated.  ...  A Mach-Zehnder modulated cw OPO was used as light source. The Mach-Zehnder modulator was compared with a mechanical chopper modulator.  ... 
doaj:8f4f44eac5e44ceda0a5d4e8cda933c2 fatcat:ghbkvfnrqbfpfk4g265mpc6vvu

Ultralow drive voltage silicon traveling-wave modulator

Tom Baehr-Jones, Ran Ding, Yang Liu, Ali Ayazi, Thierry Pinguet, Nicholas C. Harris, Matt Streshinsky, Poshen Lee, Yi Zhang, Andy Eu-Jin Lim, Tsung-Yang Liow, Selin Hwee-Gee Teo (+2 others)
2012 Optics Express  
There has been great interest in the silicon platform as a material system for integrated photonics. A key challenge is the development of a low-power, low drive voltage, broadband modulator.  ...  Drive voltages at or below 1 Vpp are desirable for compatibility with CMOS processes. Here we demonstrate a CMOS-compatible broadband traveling-wave modulator based on a reverse-biased pn junction.  ...  Lastly, the authors would like to thank Mario Panniccia and Justin Rattner, of Intel, for their support of the Institute for Photonic Integration.  ... 
doi:10.1364/oe.20.012014 pmid:22714187 fatcat:bcytrduscfh2fnj5u25a5kywea

Characteristics of Overdriven Silica on Silicon Switching Devices

Ary Syahriar, Nabil Rayhan Syahriar, Jusman Syafiie Djamal
2017 TELKOMNIKA (Telecommunication Computing Electronics and Control)  
In this case we have used bigger driving voltage that falls to zero exactly as the first extinction is reached, allowing an approximately threefold increase in modulation speed.  ...  We have characterized the switching devices based on Mach Zehnder interferometer where thin layers of evaporated MgF 2 can be used as a cladding for waveguides formed by electron beam irradiation of PECVD  ...  Switches based on directional couplers would be a good alternative, but heating one waveguide without affecting the other in such a closely-spaced geometry is extremely difficult.  ... 
doi:10.12928/telkomnika.v15i4.6457 fatcat:ypggcq4agngdvabuith3nfr23a

32 Gb/s OOK and 64 Gb/s PAM-4 Modulation Using a Single-Drive Silicon Mach-Zehnder Modulator With 2-V Drive Voltage

Gangqiang Zhou, Linjie Zhou, Yuyao Guo, Shuhuang Chen, Liangjun Lu, Lei Liu, Jianping Chen
2019 IEEE Photonics Journal  
We demonstrate a high-efficiency silicon Mach-Zehnder modulator with Ushaped PN junctions.  ...  The bit error rate for the PAM-4 modulation is below the hard-decision forward error correction threshold of 3.8 × 10 −3 .  ...  The modulation efficiency is independent of the modulation arm length. For a fixed arm length, the drive voltage is reduced for a modulator with a higher modulation efficiency.  ... 
doi:10.1109/jphot.2019.2954597 fatcat:72jclqnzo5hrzhaso25dzskwju

Integrated optical devices for photonics instrumentation systems

Glen M. McWright, Donald A. Lafaw, Mark E. Lowry, W. Tindall, Hans Dammann
1990 Electro-Optic and Magneto-Optic Materials II  
The system uses a lasm' diode, a high speed Mach-Zehnder modulator, and a streak camera recording system. The modulator, il.  ...  X-cut' y-propagating lithium niobate is used for our Mach-Zehnder fabrication.  ... 
doi:10.1117/12.20483 fatcat:2snvdawemzbxtl4dskswml553m

Ka-to-l-band frequency down-conversion using a micro-photonic III-V-on-silicon mode-locked laser and Mach-Zehnder modulator

Kasper Van Gasse, Z. Wang, S. Uvin, B. De Deckere, J. Mariën, G. Roelkens, L. Thomassen, Nikos Karafolas, Bruno Cugny, Zoran Sodnik
2017 International Conference on Space Optics — ICSO 2016  
MACH-ZEHNDER MODULATORThe Mach-Zehnder modulator was realized on the III-V-on-Silicon platform as well. Another InP wafer with a different epitaxial layer design was used for the modulator.  ...  The DDMZM consists of a Mach-Zehnder interferometer structure, in which both arms contain a high-speed optical phase shifter that can be driven independently.  ... 
doi:10.1117/12.2296159 fatcat:qwiumj4zt5gkneivwb3eoyw73q

Performance Projection of Electro-Optical Modulators for Radio-Over-Fiber in 2 GHz Cryogenic Front-End Receivers

O. Menendez, C. Collado, J. Mateu, M.C. Santos, J.M. O'Callaghan
2005 IEEE transactions on applied superconductivity  
The optimized layout is presented featuring a reduced length of 8.26 mm. Index Terms-Coplanar waveguide, high temperature superconductor, LiNbO 3 , Mach-Zehnder electro-optical modulator, resonance.  ...  We present the design of a Y-Ba-Cu-O on LiNbO 3 cryogenic electro-optical modulator for analog 2 GHz applications.  ...  Mach-Zehnder interferometer.  ... 
doi:10.1109/tasc.2005.850121 fatcat:mitmh2zgsbbo5cm6n6swwtuj7u

Flexible Transmitter Employing Silicon-Segmented Mach–Zehnder Modulator With 32-nm CMOS Distributed Driver

Tam N. Huynh, Nicolas Dupuis, Renato Rimolo-Donadio, Jonathan E. Proesel, Doug M. Gill, Christian W. Baks, Alexander V. Rylyakov, Clint L. Schow, William M. J. Green, Benjamin G. Lee
2016 Journal of Lightwave Technology  
We propose a flexible optical transmitter for the short-reach optical interconnects that includes a silicon photonic segmented Mach-Zehnder modulator driven by a distributed six-channel 32-nm silicon on  ...  insulator (SOI) complementary metaloxide semiconductor driver integrated circuit.  ...  Segmented Mach-Zehnder Modulator The segmented Mach-Zehnder modulator was designed and fabricated in IBM developed CMOS Integrated Nano Photonics technology CMOS9WG [4] .  ... 
doi:10.1109/jlt.2016.2606558 fatcat:fth62ijufrcfdnthvu2jhfbjla

Integrated Pound−Drever−Hall laser stabilization system in silicon

Mohamad Hossein Idjadi, Firooz Aflatouni
2017 Nature Communications  
We present an integrated architecture utilizing an electronically reconfigurable MachZehnder interferometer as the frequency reference to reduce the frequency noise of semiconductor lasers by more than  ...  Here we report the demonstration of an integrated Pound−Drever−Hall system that can stabilize a low-cost laser to realize a compact inexpensive light source, which can ultimately impact many fields of  ...  loop gain reduction which is approximately consistent with 7 dB lower PDH chip Photodiode On-chip oscillator Phase modulator Heater Mach-Zehnder interferometer Mixer Driver Low-pass  ... 
doi:10.1038/s41467-017-01303-y pmid:29089482 pmcid:PMC5663923 fatcat:3xb26n23ynandn5nmftb3ny44m

Silicon Photonic Switches Hybrid-Integrated With CMOS Drivers

Alexander V. Rylyakov, Clint L. Schow, Benjamin G. Lee, William M. J. Green, Solomon Assefa, Fuad E. Doany, Min Yang, Joris Van Campenhout, Christopher V. Jahnes, Jeffrey A. Kash, Yurii A. Vlasov
2012 IEEE Journal of Solid-State Circuits  
Index Terms-CMOS driver, hybrid integration, Mach-Zehnder interferometer, optical switches, silicon photonics.  ...  The 2 2 switch is based on a wavelength-insensitive Mach-Zehnder interferometer (WIMZ) and the 1 2 is based on a two-ring resonator.  ...  TWO-PORT CMOS-DRIVEN OPTICAL SWITCHES A. 2 2 WIMZ Optical Switch The wavelength insensitive Mach-Zehnder (WIMZ) optical switch, reported initially in [8] , comprises a Mach-Zehnder interferometer with  ... 
doi:10.1109/jssc.2011.2170638 fatcat:6qgb2cvh6rfxdo5txjd447xi7m

Monolithic 56 Gb/s silicon photonic pulse-amplitude modulation transmitter

Chi Xiong, Douglas M. Gill, Jonathan E. Proesel, Jason S. Orcutt, Wilfried Haensch, William M. J. Green
2016 Optica  
The superior PAM-4 waveform is enabled by optimization of silicon traveling wave modulators and monolithic integration of the CMOS driver circuits.  ...  Our results show that monolithic silicon photonics technology is a promising platform for future ultrahigh data rate optical interconnects.  ...  Two directional couplers with thermooptically tunable phase shifters serve as input and output couplers for the Mach-Zehnder modulator.  ... 
doi:10.1364/optica.3.001060 fatcat:7cylec7vcrcgzlelti3ilbv334

Improving the Performance of Sampled-Grating DBR Laser-Based Analog Optical Transmitters

Leif A. Johansson, Yuliya A. Akulova, Chris Coldren, Larry A. Coldren
2008 Journal of Lightwave Technology  
electroabsorption and Mac-Zehnder modulation.  ...  It is found that to provide link gain and low noise figure, an RF preamplifier is required, and for this reason SFDR including a preamplifier has been evaluated.  ...  The EAM is inserted in a Mach-Zehnder (MZ) configuration, where the other arm of the MZ is not being modulated.  ... 
doi:10.1109/jlt.2007.916592 fatcat:gtml2dyfjfbsdjpvc6at2vm234

Pulsed frequency shifted feedback laser for accurate long distance measurements: Beat order determination

Jean-Paul Pique
2013 Optics Communications  
Long-distance measurements (10 m - 1000 m) with an accuracy of 10-7 is a challenge for many applications.  ...  Using the pulsed-FSF laser that we developed for laser guide star application, we propose and test, up to 240 m, a simple method for measuring the beat order in real time.  ...  Acknowledgments We thank the LIPhy laboratory and the CNRS for funding this project. The author is very grateful to E. Geissler for his contribution in reading the paper.  ... 
doi:10.1016/j.optcom.2012.06.098 fatcat:b7kpwsvatzganffrmxh43f5obm

Heterogeneously Integrated ITO Plasmonic Mach-Zehnder Interferometric Modulator on SOI [article]

Rubab Amin, Rishi Maiti, Yaliang Gui, Can Suer, Mario Miscuglio, Elham Heidari, Jacob B. Khurgin, Ray T. Chen, Hamed Dalir, Volker J Sorger
2020 arXiv   pre-print
Following this design paradigm, here, we demonstrate a spectrally broadband, GHz-fast Mach-Zehnder interferometric modulator, exhibiting a high efficiency signified by a miniscule VpL of 95 Vum, deploying  ...  Such sub-wavelength short efficient and fast modulators monolithically integrated into Silicon platform open up new possibilities for high-density photonic circuitry, which is critical for high interconnect  ...  The effective index of refraction is a function of voltage for electrical modulation and a function of temperature for thermal modulation.  ... 
arXiv:2007.15457v2 fatcat:osbj53rsqvcstjqigswhl7yz74
« Previous Showing results 1 — 15 out of 819 results