Tunable femtosecond laser in the visible range with an intracavity frequency-doubled optical parametric oscillator

doi:10.1088/1674-1056/22/5/054210

Abstract We demonstrated experimentally a synchronously pumped intracavity frequency-doubled femtosecond optical parametric oscillator (OPO) using a periodically-poled lithium niobate (PPLN) as the nonlinear material in combination with a lithium triborate (LBO) as the doubling crystal. A Kerr-lens-mode-locked (KLM) Ti:sapphire oscillator at the wavelength of 790 nm was used as the pump source, which was capable of generating pulses with a duration as short as 117 fs. A tunable femtosecond laser covering the 624-672 nm range was realized by conveniently adjusting the OPO cavity length. A maximum average output power of 260 mW in the visible was obtained at the pump power of 2.2 W, with a typical pulse duration of 205 fs assuming a sech² pulse profile.

Keywords: femtosecond optical parametric oscillator intracavity frequency-doubling tunable visible source

Received: 08 November 2012
Revised: 28 November 2012
Accepted manuscript online:

PACS:	42.65.Yj	(Optical parametric oscillators and amplifiers)
	42.65.Ky	(Frequency conversion; harmonic generation, including higher-order harmonic generation)
	42.72.Bj	(Visible and ultraviolet sources)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 10874237 and 61205130) and the Knowledge Innovation Program of Chinese Academy of Sciences (Grant No. KJCX2-YW-N36).

Corresponding Authors: Wei Zhi-Yi
E-mail: zywei@iphy.ac.cn

Cite this article:

Zhu Jiang-Feng (朱江峰), Xu Liang (徐亮), Lin Qing-Feng (林清峰), Zhong Xin (钟欣), Han Hai-Nian (韩海年), Wei Zhi-Yi (魏志义) Tunable femtosecond laser in the visible range with an intracavity frequency-doubled optical parametric oscillator 2013 Chin. Phys. B 22 054210

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Tunable femtosecond laser in the visible range with an intracavity frequency-doubled optical parametric oscillator

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