Title :
Evaluation of power penalties caused by feedback noise of distributed feedback laser diodes
Author :
Shikada, M. ; Takano, S. ; Fujita, S. ; Mito, I. ; Minemura, K.
Author_Institution :
NEC Corp., Kawasaki, Japan
fDate :
5/1/1988 12:00:00 AM
Abstract :
Power penalties caused by optical feedback noise of distributed feedback laser diodes were evaluated experimentally and theoretically. It was found that power penalties could be suppressed when the beam-relative intensity noises were reduced to less than -135 dB/Hz at 2 Gb/s. This goal can be satisfied using a commercially available optical isolator that has more than 25-dB isolation in the lasar transmitter
Keywords :
distributed feedback lasers; electron device noise; optical isolators; semiconductor junction lasers; 2 Gbit/s; beam-relative intensity noises; distributed feedback laser diodes; feedback noise; lasar transmitter; optical isolator; power penalties; Circuit noise; Connectors; Diode lasers; Distributed feedback devices; Isolators; Laser feedback; Noise reduction; Optical beams; Optical feedback; Optical noise; Optical receivers; Optical transmitters; Reflectivity;
Journal_Title :
Lightwave Technology, Journal of
