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Integrated buried heterostructure DFB laser array for WDM systems based on reconstruction equivalent chirp technique
Author(s) -
Tang Song,
Lu Jun,
Wang Jeffery,
Liu Yue,
Chen Xiangfei
Publication year - 2015
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.29075
Subject(s) - chirp , microwave , laser , wavelength division multiplexing , materials science , optoelectronics , longitudinal mode , optics , heterojunction , multiplexing , wideband , wavelength , electronic engineering , engineering , telecommunications , physics
A distributed‐feedback semiconductor laser array with buried heterostructure waveguide based on reconstruction equivalent chirp technique is experimentally demonstrated. The fabricated six‐element laser array has channel spacing of 800 GHz and well meets the International Telecommunication Union standard, with relatively low threshold and high efficiency. Good single‐longitudinal mode operation has been achieved at high injection current (120 mA) and high temperature (80°C), with side mode suppression ratios not lower than 40 dB, which is promising for the future wavelength division multiplexing systems. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1278–1281, 2015