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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 12, Iss. 15 — Jul. 26, 2004
  • pp: 3567–3572

Generation of 22.8 mW single-frequency green light by frequency doubling of a 50-mW diode laser

Kazuhiro Hayasaka, Yun Zhang, and Katsuyuki Kasai  »View Author Affiliations

Optics Express, Vol. 12, Issue 15, pp. 3567-3572 (2004)

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We report frequency doubling of an extended-cavity diode laser in an a-cut KTP crystal. Continuous-wave, single-mode green light at 540 nm with a power of 22.8 mW was generated from an input of 44.2 mW by type II non-critical phase matching. Stable operation with intensity fluctuations smaller than 1 % peak-to-peak for more than two hours was achieved by employing resonant optical feedback. The optical feedback also reduced the fundamental-wave linewidth to the upper limit of 41 kHz.

© 2004 Optical Society of America

OCIS Codes
(140.2020) Lasers and laser optics : Diode lasers
(190.2620) Nonlinear optics : Harmonic generation and mixing

ToC Category:
Research Papers

Original Manuscript: April 26, 2004
Revised Manuscript: July 19, 2004
Published: July 26, 2004

Kazuhiro Hayasaka, Yun Zhang, and Katsuyuki Kasai, "Generation of 22.8 mW single-frequency green light by frequency doubling of a 50-mW diode laser," Opt. Express 12, 3567-3572 (2004)

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