High power with high efficiency in a narrow single-lobed beam from a diode laser array in an external cavity
- 25 May 1987
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 50 (21) , 1465-1467
- https://doi.org/10.1063/1.97801
Abstract
High output power (700 mW) in a nearly diffraction-limited (0.7°) single-lobed nonsteering output beam is obtained from a gain-guided diode laser array in a novel, easily fabricated external cavity configuration. The laser output beam is collimated in both lateral and vertical directions. Differential quantum efficiency as high as 70% has been measured along with excellent linearity of the optical power versus current characteristic. The power and efficiency are the highest reported for a coupled-stripe laser array emitting a narrow single-lobed beam.Keywords
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