Title :
Wavelength discriminator method for measuring dynamic chirp in DFB lasers
Author_Institution :
AT&T Bell Labs., Holmdel, NJ, USA
fDate :
9/29/1988 12:00:00 AM
Abstract :
Wavelength fluctuations in a modulated DFB laser are transformed into intensity fluctuations using a Fabry-Perot interferometer as a wavelength discriminator. Using this method the authors have measured chirp in several DFB lasers. The results show a high correlation between chirp and regenerator sensitivity degradation when transmitting through dispersive spans
Keywords :
distributed feedback lasers; semiconductor junction lasers; DFB lasers; Fabry-Perot interferometer; chirp; dispersive spans; dynamic chirp; intensity fluctuations; regenerator sensitivity degradation; wavelength discriminator;
Journal_Title :
Electronics Letters
