Title :
DFB laser RIN degradation in CATV lightwave transmission
Author :
Movassaghi, M. ; Jackson, M.K. ; Smith, V.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
We describe a sensitive RIN measurement system, show that substantial RIN degradation occurs in the CATV band, and that this can significantly impair CNR. We quantitatively show how selection of 1550 nm analog lasers for noise performance should be based on both linewidth and RIN. The RIN measurement setup consists of the laser under test, a length of single-mode fiber, an optical attenuator, and a receiver which contains a photodiode and a transimpedance amplifier
Keywords :
cable television; distributed feedback lasers; laser variables measurement; optical testing; optical transmitters; semiconductor device testing; semiconductor lasers; CATV band; CATV lightwave transmission; DFB laser RIN degradation; RIN measurement; analog lasers; linewidth; noise performance; optical attenuator; photodiode; receiver; sensitive RIN measurement system; single-mode fiber; substantial RIN degradation; transimpedance amplifier; Attenuation measurement; Degradation; Fiber lasers; Laser noise; Length measurement; Optical attenuators; Optical fiber testing; Optical noise; Optical receivers; Photodiodes;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1998. LEOS '98. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-4947-4
DOI :
10.1109/LEOS.1998.739611
