Title :
Transmission characteristics of DFB laser modules for analog applications
Author :
Yonetani, H. ; Ushijima, I. ; Takada, Tatsuo ; Shima, Keisuke
Author_Institution :
Fujitsu Ltd., Kawasaki
fDate :
1/1/1993 12:00:00 AM
Abstract :
Analog transmission characteristics of highly linear 1.3- and 1.55-μm distributed feedback (DFB) laser modules are described. To obtain high-power and high-performance DFB lasers, the bias dependence of distortion characteristics is discussed. The carrier-to-noise ratio, the composite second-order distortion, and the composite triple beat of the DFB laser module which is developed for analog CATV applications are presented. The analog transmission characteristics, such as CNR degradation, after fiber transmission, dispersion-induced distortion, and the influence of reflection, have been made clear. The stable high linearity of the DFB laser also has been confirmed by the composite distortion measurement under an accelerated aging test
Keywords :
ageing; cable television; distributed feedback lasers; optical communication equipment; optical testing; semiconductor device testing; semiconductor lasers; 1.3 micron; 1.55 micron; CNR degradation; DFB laser modules; IR; accelerated aging test; analog CATV applications; bias dependence; carrier-to-noise ratio; composite distortion measurement; composite second-order distortion; composite triple beat; dispersion-induced distortion; distortion characteristics; distributed feedback; fiber transmission; high-performance; high-power; reflection; stable high linearity; transmission characteristics; Degradation; Distortion measurement; Distributed feedback devices; Fiber lasers; Laser feedback; Laser noise; Laser stability; Linearity; Optical fiber testing; Optical reflection;
Journal_Title :
Lightwave Technology, Journal of
