40-Gb/s electroabsorption-modulated NRZ and RZ sources

T. G. Beck Mason; Abdallah Ougazzaden; Charles W. Lentz; Kenneth G. Glogovsky; C. Lewis Reynolds Jr.; George J. Przybylek; Ronald E. Leibenguth; Terry L. Kercher; John W. Boardman; Michael T. Rader; J. Michael Geary; Frank S. Walters; Larry J. Peticolas; James M. Freund; George Chu; Andrei Sirenko; Ronald J. Jurcehnko; Mark S. Hybertsen; Leonard J. P. Ketelsen; Gregory Raybon

doi:10.1117/12.435995

30 July 2001 40-Gb/s electroabsorption-modulated NRZ and RZ sources

T. G. Beck Mason, Abdallah Ougazzaden, Charles W. Lentz, Kenneth G. Glogovsky, C. Lewis Reynolds Jr., George J. Przybylek, Ronald E. Leibenguth, Terry L. Kercher, John W. Boardman, Michael T. Rader, J. Michael Geary, Frank S. Walters, Larry J. Peticolas, James M. Freund, George Chu, Andrei Sirenko, Ronald J. Jurcehnko, Mark S. Hybertsen, Leonard J. P. Ketelsen, Gregory Raybon

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Proceedings Volume 4532, Active and Passive Optical Components for WDM Communication; (2001) https://doi.org/10.1117/12.435995
Event: ITCom 2001: International Symposium on the Convergence of IT and Communications, 2001, Denver, CO, United States

Abstract

Electro-absorption modulated sources are likely to be key components in the evolution of optical communication line rates from 10Gb/s to 40 Gb/s. Compared with the LiNbO₃ alternative EA modulators are more compact, less expensive, compatible with monolithic integration, and offer lower drive voltages. However, fabrication complexity and open questions concerning the fidelity with which they transmit information make the exact role of 40Gb/s EA modulators in advanced communication systems somewhat unclear. In this talk we will describe the design, fabrication and transmission performance of 40Gb/s EA modulators configured for both NRZ and RZ operation. For NRZ transmission the device structure consists of a short MQW modulator with spot-size converters on the input and output ends. Tandem EA modulators for pulse carver and data encoder functions were monolithically integrated along with a semiconductor optical amplifier and input/output spot-size converters to explore RZ transmission. Both single and tandem modulator design are realized using semi-insulting InP current confined buried heterostructure technology. Modulation bandwidth of better than 50 GHz is demonstrated along with a fiber-to-fiber insertion loss of less than 6 dB for the single modulator design. The carver/encoder configuration with onboard SOA yields better than 0 dB insertion loss. Transmission impairments were studies using both designs.

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T. G. Beck Mason, Abdallah Ougazzaden, Charles W. Lentz, Kenneth G. Glogovsky, C. Lewis Reynolds Jr., George J. Przybylek, Ronald E. Leibenguth, Terry L. Kercher, John W. Boardman, Michael T. Rader, J. Michael Geary, Frank S. Walters, Larry J. Peticolas, James M. Freund, George Chu, Andrei Sirenko, Ronald J. Jurcehnko, Mark S. Hybertsen, Leonard J. P. Ketelsen, and Gregory Raybon "40-Gb/s electroabsorption-modulated NRZ and RZ sources", Proc. SPIE 4532, Active and Passive Optical Components for WDM Communication, (30 July 2001); https://doi.org/10.1117/12.435995

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Modulators

Modulation

Waveguides

Absorption

Eye

Optical amplifiers

Computer programming

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