Narrow linewidth 1.5 μm semiconductor laser with a resonant optical reflector

Olsson, N. A.; Henry, C. H.; Kazarinov, R. F.; Lee, H. J.; Johnson, B. H.; Orlowsky, K. J.
October 1987
Applied Physics Letters;10/12/1987, Vol. 51 Issue 15, p1141
Academic Journal
A compact narrow linewidth semiconductor laser is described. An emission linewidth of 135 kHz at 5 mW of output power is obtained from a 1.5-μm semiconductor laser butt coupled to an external resonant optical reflector (ROR). The ROR, made with dielectric waveguides on silicon substrate, has transmission and reflection bandwidths as narrow as 0.35 Å.


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