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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 9 — May. 1, 1989
  • pp: 1618–1623

Narrowband, high power light from diode lasers

Song-Quan Shang and Harold J. Metcalf  »View Author Affiliations


Applied Optics, Vol. 28, Issue 9, pp. 1618-1623 (1989)
http://dx.doi.org/10.1364/AO.28.001618


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Abstract

We have used a 100-mW cw laser diode array to amplify the light from a low power, single stripe diode laser (both lasers commercially available). The input light was spectrally narrowed and frequency stabilized to <300 kHz using optical feedback from a Fabry-Perot cavity, and the amplified beam had the same spectral characteristics. Also, the ~90-mW amplified beam had a single diffraction-limited spatial mode corresponding to the full 100-μm width of the array, indicating that all its stripes were coherent. When viewing the output of the free-running laser array, we observe that the input light causes its output spectrum and spatial distribution to be dramatically narrowed. We have tested a simple quantitative model of this process.

© 1989 Optical Society of America

History
Original Manuscript: October 24, 1988
Published: May 1, 1989

Citation
Song-Quan Shang and Harold J. Metcalf, "Narrowband, high power light from diode lasers," Appl. Opt. 28, 1618-1623 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-9-1618

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