Title :
Delayed Self-Heterodyne Test of a Dispersive Semiconductor Laser Field
Author :
Al-Aubaidy, Zaid Sami
Author_Institution :
Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Melbourne, VIC, Australia
Abstract :
Beat-note power spectral density (PSD) of a dispersive semiconductor laser field in the delayed self-heterodyne test is derived by combining the effect of fiber´s chromatic dispersion with differential time delay, taking laser´s intensity noise (IN) into account, and assuming standard single-mode fiber (SSMF) as an optical channel. This generalized PSD, as it is proven, has asymmetric spectrum due to the high correlation between the dispersive phase noise and the induced IN that is introduced due to channel response. This paper expands our knowledge of the interaction between laser fields with optical channel as well as improving penalty analyses in pilot-aided multicarrier systems such as optical OFDM.
Keywords :
OFDM modulation; delays; laser noise; optical communication equipment; optical fibre communication; optical fibre dispersion; optical fibre testing; phase noise; semiconductor lasers; SSMF; asymmetric spectrum; beat-note power spectral density; channel response; delayed self-heterodyne test; differential time delay; dispersive phase noise; dispersive semiconductor laser field; fiber chromatic dispersion; generalized PSD; induced IN; laser intensity noise; optical OFDM; optical channel; penalty analysis; pilot-aided multicarrier systems; standard single-mode fiber; Dispersion; Noise; Optical attenuators; Optical distortion; Optical fibers; Optical noise; Chromatic dispersion; feedforward systems; phase noise; semiconductor lasers;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2212178
