1.55-μm InGaAsP distributed feedback vapor phase transported buried heterostructure lasers
- 1 July 1985
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 47 (1), 12-14
- https://doi.org/10.1063/1.96410
Abstract
1.55-μm single longitudinal mode InGaAsP distributed feedback (DFB) lasers have been fabricated using a vapor phase transported (VPT) buried heterostructure geometry on a liquid phase epitaxially grown broad area DFB base. Lasing thresholds in the 35–65-mA range were obtained, with side mode suppression ratios as high as 39 dB under modulation. The VPT DFB laser has both a good high-speed modulation capability and low wavelength chirping under high-speed modulation, making it an attractive candidate for high bit rate, long-haul optical fiber systems applications, with demonstrated record system performance at both 2 and 4 Gbit/s.Keywords
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