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High-power diffraction-limited monolithic broad area master oscillator power amplifier

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6 Author(s)
O'Brien, S. ; Spectra Diode Labs., San Jose, CA, USA ; Mehuys, D. ; Welch, D.F. ; Parke, R.
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High-power monolithically integrated broad-area master oscillator power amplifiers (MBA-MOPAs), consisting of a distributed-Bragg-reflector (DBR) laser, a preamplifier, a coherent beam expander, and a broad area power amplifier producing up to 800 mW in a single spectral and spatial mode, are fabricated. The MBA-MOPA operates in an edge-emitting configuration with a primarily single-lobe output having a transverse beam divergence of 0.45 degrees , indicating a uniform phase over the 130- mu m emitting aperture.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:5 ,  Issue: 5 )