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Frequency stabilization of tunable DBR laser using multiwavelength light injection locking technique

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1 Author(s)
M. Teshima ; NTT Opt. Network Syst. Labs., Kanagawa, Japan

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

Published in:

Journal of Lightwave Technology  (Volume:14 ,  Issue: 12 )