Fiber-coupled external cavity semiconductor laser
Patent
·
OSTI ID:5942552
An external cavity semiconductor laser includes an array of semiconductor optical gain elements, each device having at least one transmissive facet along an optical axis, and reflectors for reflecting incident light from the laser devices back to those devices. Optical fibers couple the transmissive facets of the optical gain elements in parallel to the reflectors. A spatial filter in the cavity between the optical gain element array and the reflectors establish spatial coherence of the light within the cavity to establish a coherent output beam. In this form, the fiber-coupled laser devices may be located in remote sub-groups, thereby reducing the power dissipation density for the external cavity laser.
- Assignee:
- Massachusetts Institute of Technology
- Patent Number(s):
- US 4479224
- OSTI ID:
- 5942552
- Country of Publication:
- United States
- Language:
- English
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· IEEE J. Quant. Electron.; (United States)
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