Title :
Power penalty due to optical back reflection in semiconductor optical amplifier repeater systems
Author :
Taga, Hidenori ; Yamamoto, Shu ; Mochizuki, Kiyofumi ; Wakabayashi, Hiroharu
Author_Institution :
KDD Meguro R&D Lab., Tokyo, Japan
fDate :
4/1/1990 12:00:00 AM
Abstract :
The effect of optical back-reflection on the bit-error-rate performance of a semiconductor laser amplifier repeater system is evaluated at 565 Mb/s. It is found that the degradation of the back-reflection is mainly caused by multiple reflection in the amplifier and depends on the internal gain of the optical amplifier and the reflectivity of the reflection points. It is concluded that in optical amplifier repeater systems with large gain, an optical isolator should be used to reduce the back-reflection penalty.<>
Keywords :
laser beam applications; optical communication equipment; optical isolators; reflectivity; repeaters; semiconductor junction lasers; 565 Mbit/s; back-reflection degradation; back-reflection penalty; bit-error-rate performance; internal gain; large gain; laser amplifier; multiple reflection; optical back reflection; optical isolator; power penalties; reflection points; reflectivity; semiconductor optical amplifier repeater systems; Optical amplifiers; Optical attenuators; Optical fiber polarization; Optical filters; Optical receivers; Optical reflection; Optical sensors; Repeaters; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
