Yield dependency on length of AlGaAs/GaAs second-order distributed feedback lasers with cleaved facets

Hirata, Shoji; Ohata, Toyoharu; Yamamoto, Tadashi; Kojima, Chiaki
November 1987
Applied Physics Letters;11/9/1987, Vol. 51 Issue 19, p1475
Academic Journal
The effect of length on the yield of second-order distributed feedback lasers with cleaved facets capable of operating in a single longitudinal mode and on their characteristics has been studied experimentally. The optimum length of 200 μm was determined in reference to the coupling coefficient and the end-facet reflectivity. A yield of more than 70% was obtained for lasers 200 μm in length capable of operating at a level of at least 10 mW and over.


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