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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 30, Iss. 24 — Dec. 15, 2005
  • pp: 3395–3397

990 mW average power, 52% efficient, high-repetition-rate picosecond-pulse generation in the blue with BiB3O6

M. Ghotbi and M. Ebrahim-Zadeh  »View Author Affiliations

Optics Letters, Vol. 30, Issue 24, pp. 3395-3397 (2005)

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Efficient single-pass second-harmonic generation (SHG) of tunable high-repetition-rate picosecond pulses into the blue is reported in the nonlinear crystal BiB3O6. Using 2.4 ps fundamental pulses from a mode-locked Ti:sapphire laser at 76 MHz and a 10 mm crystal cut for type I (e+e-->o) phase matching in the optical yz plane, second-harmonic average powers as high as 990 mW with excellent stability have been generated at 52% conversion efficiency, and a tunable range of 370-450 nm is demonstrated. From measurements of single-pass SHG in the continuous-wave regime an effective nonlinear coefficient of 3.7 pm/V has been verified for BiB3O6, and direct comparison with beta-BaB2O4 confirms a SHG power enhancement of ∼23% for the same crystal length. Autocorrelation measurements in a 200 µm crystal of beta-BaB2O4 result in durations of 2.8 ps for the second-harmonic blue pulses.

© 2005 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.2620) Nonlinear optics : Harmonic generation and mixing
(320.7110) Ultrafast optics : Ultrafast nonlinear optics

ToC Category:
Nonlinear Optics

M. Ghotbi and M. Ebrahim-Zadeh, "990 mW average power, 52% efficient, high-repetition-rate picosecond-pulse generation in the blue with BiB3O6," Opt. Lett. 30, 3395-3397 (2005)

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