Title :
Low threshold operation of 1.5-µm DFB laser diodes
Author :
Tsuji, S. ; Ohishi, A. ; Nakamura, H. ; Hirao, M. ; Chinone, N. ; Matsumura, H.
Author_Institution :
Hitachi Ltd., Kokubunji, Tokyo, Japan
fDate :
6/1/1987 12:00:00 AM
Abstract :
Highly reliable distributed feedback (DFB) laser diodes operating at 1.5-μm wavelength range are fabricated through optimizing the device parameters. Thickness control of the active layer is found to be an essential factor in achieving low threshold operation of DFB lasers. The threshold current as low as 11 mA and stable single longitudinal mode CW operation up to 106°C is achieved with these DFB lasers.
Keywords :
CW lasers; Distributed feedback (DFB) lasers; Optical fiber transmitters, lasers; Diode lasers; Distributed feedback devices; Fiber lasers; Laser feedback; Laser modes; Laser theory; Optical feedback; Optical waveguides; Threshold current; Waveguide lasers;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.1987.1075569
