Suppression of feedback-induced noise in short-cavity V-channeled substrate inner stripe lasers with self-oscillation
- 1 August 1983
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 43 (3) , 219-221
- https://doi.org/10.1063/1.94306
Abstract
Self-oscillations of V-channeled substrate inner stripe (VSIS) lasers with index guiding and the influence of external feedback on low-frequency noise generation are presented. The self-oscillation is induced by means of shortening a cavity length of VSIS laser to 110 μm. VSIS lasers with self-oscillation have the fundamental linewidth of 0.56 Å below 3 mW and are not sensitive to both phase and amplitude of the externally reflected light. Signal to noise ratio of short-cavity VSIS laser at 1 MHz with a 10-KHz bandwidth was 97 dB at 0.05% optical feedback.Keywords
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