Heteroepitaxial ridge-overgrown distributed feedback laser at 1.5 μm
- 15 December 1984
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 45 (12) , 1272-1274
- https://doi.org/10.1063/1.95109
Abstract
A new distributed feedback laser, the heteroepitaxial ridge-overgrown distributed feedback (HRO DFB) laser, is proposed and demonstrated. The HRO DFB lasers operated in stable single longitudinal mode with no observable mode partition events under 2-Gb/s pseudo-random pulse modulation with dynamic spectral widths typically 0.5–2 Å even with both facets cleaved. Other characteristics of these 1.5-μm GaInAsP HRO DFB lasers include ∼10 mW/facet (no antireflection coating) of stable beam, single longitudinal mode output power, and narrow lateral beam divergence of ∼12° (half-power full width). Actual transmission experiments with dispersive fibers (17 ps/km nm) at ∼1.55 μm confirmed that the HRO DFB laser is an excellent ‘‘single-frequency’’ optical source.Keywords
This publication has 5 references indexed in Scilit:
- High-performance single-longitudinal-mode operation of InGaAsP/InP DFB-DC-PBH LD'sJournal of Lightwave Technology, 1984
- High-speed 1.55 μm single-longitudinal-mode ridge waveguide C 3 laserElectronics Letters, 1983
- High-speed direct single-frequency modulation with large tuning rate and frequency excursion in cleaved-coupled-cavity semiconductor lasersApplied Physics Letters, 1983
- Dynamic single-mode semiconductor lasers with a distributed reflectorJournal of Lightwave Technology, 1983
- GaAs-AlxGa1−xAs strip-buried-heterostructure lasers with lateral-evanescent-field distributed feedbackApplied Physics Letters, 1979