Title :
Distributed feedback laser emitting at 1.3 µm for gigabit communication systems
Author :
Ishikawa, H. ; Soda, H. ; Wakao, K. ; Kihara, K. ; Kamite, K. ; Kotaki, Y. ; Matsuda, M. ; Sudo, H. ; Yamakoshi, S. ; Isozumi, S. ; Imai, S.
Author_Institution :
Fujitsu Laboratories Ltd., Atsugi, Kanagawa, Japan
fDate :
6/1/1987 12:00:00 AM
Abstract :
A distributed feedback (DFB) laser emitting at 1.3 μm for gigabit lightwave communication systems has been developed. The distributed feedback structure has been introduced in a newly developed buried heterostructure and designs for stable single-mode operation, high speed modulation, and low noise have been done. Threshold current of 10-15 mA, differential efficiency of around 0.28 mW/mA, low noise, small signal modulation bandwidth of 13.9 GHz, and satisfactory modulation waveform at 5-Gbit/s NRZ modulation have been attained with high single-mode operation yield.
Keywords :
Distributed feedback (DFB) lasers; Optical fiber transmitters, lasers; Distributed feedback devices; Fiber lasers; Frequency response; Laser feedback; Laser modes; Laser noise; Noise reduction; Optical design; Parasitic capacitance; Surface emitting lasers;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.1987.1075570
