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Wide-bandwidth and high-power InGaAsP distributed feedback lasers

Journal Article · · Journal of Applied Physics; (USA)
DOI:https://doi.org/10.1063/1.343820· OSTI ID:5365612
; ; ; ; ; ;  [1];  [2]
  1. AT T Bell Laboratories, Murray Hill, New Jersey 07974 (USA)
  2. AT T Bell Laboratories, Crawford Hill, New Jersey 07733 (USA)
The fabrication and performance characteristics of a wide-bandwidth InGaAsP laser diode structure are described. The wide bandwidth is achieved using semi-insulating Fe-doped InP current blocking layers around the active region. The lasers have a bandwidth of 18 GHz at 20 mW, emit 50 mW in a single transverse and longitudinal mode, have rise and fall times of less than 40 ps, have low chirp (FWHM{lt}1 A) under modulation, and exhibit harmonic distortion characteristics in agreement with fundamental calculations using a rate equation model. Error-free transmission with no dispersion penalty has been obtained using these lasers in a transmission experiment at 8 Gb/s over 76 km of fiber.
OSTI ID:
5365612
Journal Information:
Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 66:10; ISSN 0021-8979; ISSN JAPIA
Country of Publication:
United States
Language:
English