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Extremely low power penalty in 2.5‐Gb/S transmission experiment using 1.55‐μm MQW‐DFB lasers with optimized QW number
Author(s) -
Kawano M.,
Aoyagi T.,
Watanabe H.,
Takiguchi T.,
Nakajima Y.,
Takemoto A.,
Hirano R.
Publication year - 1994
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650070316
Subject(s) - laser , dispersion (optics) , optics , transmission (telecommunications) , modulation (music) , power (physics) , materials science , optoelectronics , differential gain , fiber laser , semiconductor laser theory , physics , telecommunications , engineering , quantum mechanics , acoustics
For 1.55‐μm MQW‐DFB lasers, the dependence of transmission characteristics under 2.5‐Gb/s modulation on the number of wells is investigated experimentally and theoretically. The fiber length is 70 km and the total dispersion is 1470 ps/nm. Extremely low power penalty of 1.3 dB is obtained for a 12‐well laser with large differential gain of 7.1 × 10 −16 cm 2 . © 1994 John Wiley & Sons, Inc.