Design, realization, and characterization of a ten-wavelength monolithic source for WDM applications integrating DBR lasers with a PHASAR

Autor:	H. Nakajima, A. Rigny, F. Alexandre, Fabienne Gaborit, Anne Talneau, Sylvie Menezo, E. Vergnol, S. Grosmaire, F. Delorme
Rok vydání:	2000
Předmět:	Materials science Extinction ratio business.industry Multiplexing Atomic and Molecular Physics and Optics Optics Distributed Bragg reflector laser Modulation Wavelength-division multiplexing Chirp Channel spacing Optoelectronics Electrical and Electronic Engineering business Common emitter
Zdroj:	IEEE Journal of Selected Topics in Quantum Electronics. 6:185-190
ISSN:	1558-4542 1077-260X
DOI:	10.1109/2944.826887
Popis:	We present here the design, fabrication, and static as well as dynamic characteristics of a ten-wavelength, 200-GHz channel spacing emitter for wavelength-division multiplexing applications. The source is based on the monolithic integration on InP of a ten distributed Bragg reflector laser array with a square-shaped transmission response PHASAR. The specific design of the PHASAR is detailed. The continuous-wave operation-one channel at a time-demonstrates a high monomode stability with a rejection better than 32 dB for all channels and all injected currents; the 200-GHz channel spacing can be reached with an accuracy better than 25 GHz. High-speed characteristics demonstrate a 6.5-GHz direct modulation bandwidth at -3 dB for a 70-mA current in the 900-/spl mu/m-long active section. The chirp measured for a 2.5-Gb/s modulation with a 10-dB extinction ratio is less than 1.5 /spl Aring/ for every wavelength.
Databáze:	OpenAIRE
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