Abstract
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.
Original language | English |
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Pages (from-to) | 4-6 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 47 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1985 |
Externally published | Yes |