Phase-locked InGaAsP laser array with diffraction coupling
- 15 July 1983
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 43 (2) , 136-137
- https://doi.org/10.1063/1.94282
Abstract
A phase-locked array of InGaAsP lasers has been fabricated for the first time. This 50-μm-wide array utilized diffraction coupling between adjacent lasers to achieve phase locking. Threshold current as low as 200 mA is obtained for arrays with 250-μm cavity length. Smooth single-lobe far-field patterns with beam divergence as narrow as 3° have been achieved.Keywords
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