Title :
A multiwavelength source having precise channel spacing for WDM systems
Author :
Veselka, J.J. ; Korotky, S.K.
Author_Institution :
AT&T Bell Labs., Holmdel, NJ, USA
fDate :
7/1/1998 12:00:00 AM
Abstract :
We report a wavelength-division-multiplexed (WDM) source in which a combination of a periodically driven Mach-Zehnder modulator and a nonlinear fiber are used to generate an optical spectrum that consists of several wavelength components precisely spaced by 64 GHz (>0.5 nm). The 13 strongest spectral components are within a 10-dB optical power range and their performance as channel sources in a WDM transmitter have been evaluated. We also propose and demonstrate a technique to generate an optical spectrum in which the separation between the major components is four times the modulator drive frequency.
Keywords :
Mach-Zehnder interferometers; distributed feedback lasers; electro-optical modulation; fibre lasers; light sources; measurement errors; optical transmitters; wavelength division multiplexing; WDM systems; WDM transmitter; channel sources; modulator drive frequency; multiwavelength source; nonlinear fiber; optical spectrum; periodically driven Mach-Zehnder modulator; precise channel spacing; spectral components; wavelength components; wavelength-division-multiplexed source; Amplitude modulation; Channel spacing; Fiber nonlinear optics; Frequency modulation; Nonlinear optics; Optical devices; Optical modulation; Optical receivers; Optical transmitters; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
