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Single longitudinal mode operation of semiconductor laser arrays with etalon feedback

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.98455· OSTI ID:6364108
The multiple longitudinal mode output of high-power diode-laser arrays is converted into single mode with 97% efficiency by optical feedback from a thin (<200 ..mu..m thick) etalon external to the laser. The coupled cavities formed by addition of the etalon favor a single longitudinal mode. Single-mode operation is retained at 0.1 MHz pulsed rates. Both the near-field and the far-field patterns of the laser array remain nearly unchanged while the array operates in a single longitudinal mode.
Research Organization:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California 91109
OSTI ID:
6364108
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:4; ISSN APPLA
Country of Publication:
United States
Language:
English

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