Title :
Frequency stabilization of tunable DBR laser using multiwavelength light injection locking technique
Author :
Teshima, Mitsuhiro
Author_Institution :
NTT Opt. Network Syst. Labs., Kanagawa, Japan
fDate :
12/1/1996 12:00:00 AM
Abstract :
This paper proposes a frequency stabilization scheme for tunable three-section DBR laser diodes (3S-DBR LD) that use multiwavelength light injection locking. The oscillating wavelength of the SS-DBR LD is discretely switched between cavity modes when the injection current into DBR section is changed, and locked to one wavelength of the multiwavelength light injected from the DBR section facet under the injection locking condition. The light injection properties of the capture range and the relationships of relaxation oscillation versus input power and detuning are investigated experimentally. Injection locking on the multistate wavelength of a tunable DBR LD is performed using a two wavelength multiplexed light. As a result, we demonstrate 1 GHz capture range and more than 26 dB rejection ratio for the multiplexed injected light
Keywords :
distributed Bragg reflector lasers; laser cavity resonators; laser frequency stability; laser mode locking; laser modes; laser tuning; multiplexing; optical transmitters; semiconductor lasers; DBR section facet; GHz capture range; cavity modes; dB rejection ratio; detuning; injection current; input power; multiplexed injected light; multistate wavelength; multiwavelength light injection locking; multiwavelength light injection locking technique; oscillating wavelength; relaxation oscillation; three-section DBR laser diodes; tunable DBR LD; tunable DBR laser frequency stabilisation; wavelength multiplexed light; Diode lasers; Distributed Bragg reflectors; Frequency; Injection-locked oscillators; Laser feedback; Laser stability; Optical crosstalk; Optical feedback; Optical transmitters; Tunable circuits and devices;
Journal_Title :
Lightwave Technology, Journal of
