+ 1 dBm average optical output power operation of small-chirp 40-Gbps electroabsorption modulator with tensile-strained asymmetric quantum-well absorption layer

Autor:	Kazuhisa Takagi, Y. Miyazaki, Hitoshi Tada, Shinya Tokizaki, Y. Mitsui, Y. Hanamaki, Toshitaka Aoyagi
Rok vydání:	2003
Předmět:	Frequency response Materials science Extinction ratio business.industry Quantum-confined Stark effect Optical communication Carrier lifetime Condensed Matter Physics Atomic and Molecular Physics and Optics Optics Modulation Chirp Electrical and Electronic Engineering business Quantum well
Zdroj:	IEEE Journal of Quantum Electronics. 39:1009-1017
ISSN:	0018-9197
Popis:	A small-chirp 40-Gbps electroabsorption modulator (EAM) with high optical output power capability has been developed for the first time. An optimized tensile-strained asymmetric quantum-well structure is employed as the absorption layer of the EAM so that small chirp and reduction of the lifetime of the photogenerated holes for high optical output power tolerance is obtained. Deteriorations of frequency response and chirp due to carrier pileup under high optical output power conditions were prevented by enhancing carrier sweepout, which was experimentally confirmed as a hole lifetime as short as 35 ps under high optical output power conditions. As a result, good frequency response (bandwidth > 30 GHz) and small chirp (/spl alpha/
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0e0c044820b97e2e166340557f4a2dd9 https://doi.org/10.1109/jqe.2003.814370 Zobrazit plný text záznamu