1.54-μm phase-adjusted InGaAsP/InP distributed feedback lasers with mass-transported windows

Broberg, Björn; Koentjoro, Sekartedjo; Furuya, Kazuhito; Suematsu, Yasuharu
July 1985
Applied Physics Letters;7/1/1985, Vol. 47 Issue 1, p4
Academic Journal
1.54-μm wavelength phase-adjusted InGaAsP/InP distributed feedback lasers with low threshold and almost symmetrical subthreshold spectra are demonstrated. Antireflecting window structures were formed by a novel mass transport technique over a length of 25 μm. The phase adjustment was accomplished by a groove in the substrate. Asymmetric output characteristics due to displacement of the groove from the cavity center were observed in agreement with theory.


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