Continuously tunable distributed feedback laser diode

Dutta, N. K.; Wessel, T.; Cella, T.; Brown, R. L.
November 1985
Applied Physics Letters;11/1/1985, Vol. 47 Issue 9, p981
Academic Journal
The fabrication and performance characteristics of a monolithically integrated thermoelectric controlled single frequency distributed feedback laser diode are reported. The emission frequency of the laser can be continuously tuned by ∼±5 Å using a 50-mA controller current. This fine tuning is useful for coherent system applications and for resonant optical amplifiers used as repeaters. We also report a multiwavelength laser array, each emission frequency of which can be independently tuned. Such sources are potentially useful for closely spaced wavelength multiplexed systems.


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