Title :
Interference in fast wavelength switched CPFSK systems with heterodyne detection
Author :
Brown, Jo-Anne C. ; Cartledge, John C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada
fDate :
7/1/1994 12:00:00 AM
Abstract :
In optical cross-connect and packet switched applications, as the wavelength of a transmitter laser is switched from one value to another it may momentarily coincide with wavelengths being using by other transmitter lasers. The resultant interference is assessed experimentally for CPFSK systems with heterodyne detection. It is shown that wavelength switching and direct frequency modulation can be utilized at a bit rate of 155.52 Mb/s provided differential detection is used to demodulate the intermediate frequency signal.<>
Keywords :
demodulation; frequency division multiplexing; frequency modulation; frequency shift keying; optical links; optical modulation; packet switching; 155.52 Mbit/s; CPFSK systems; demodulate; differential detection; direct frequency modulation; fast wavelength switched; heterodyne detection; intermediate frequency signal; optical cross-connect; packet switched applications; transmitter laser wavelength switching; transmitter lasers; Fiber lasers; Frequency; Interference; Optical attenuators; Optical filters; Optical mixing; Optical packet switching; Optical receivers; Optical transmitters; Power lasers;
Journal_Title :
Photonics Technology Letters, IEEE
