High power monolithically integrated diode laser, preamplifier, and coherent beam expander
O'Brien, S. ; Mehuys, D. ; Welch, D. F. ; Parke, R. ; Scifres, D.
Woodbury, NY : American Institute of Physics (AIP)
Published 1992
Woodbury, NY : American Institute of Physics (AIP)
Published 1992
| ISSN: |
1077-3118
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|---|---|
| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
An integrated coherent beam expander utilizing a transverse leaky mode waveguide has been integrated with a single mode distributed Bragg reflector laser and a preamplifier producing powers in excess of 70 mW cw in a single spectral and spatial mode across an aperture over 100 μm wide. The far-field pattern in the direction parallel to the plane of the p-n junction, consists of one main lobe 0.45° wide, indicating that the beam is coherent over the full emitting aperture. The expanded beam is suitable as an injection source for an integrated broad area amplifier.
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| Type of Medium: |
Electronic Resource
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| URL: |