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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 24 — Nov. 22, 2010
  • pp: 25183–25191

Efficient green-light generation by frequency doubling of a picosecond all-fiber ytterbium-doped fiber amplifier in PPKTP waveguide inscribed by femtosecond laser direct writing

Chenghou Tu, Zhangchao Huang, Kai Lou, Hongjun Liu, Yishan Wang, Yongnan Li, Fuyun Lu, and Hui-Tian Wang  »View Author Affiliations

Optics Express, Vol. 18, Issue 24, pp. 25183-25191 (2010)

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We have demonstrated an ultrashort, compact green light radiation by frequency doubling of an all-fiber ytterbium-doped fiber laser source in a PPKTP waveguide fabricated by femtosecond laser pulses. Using the fabricated PPKTP waveguide crystal containing a 10 mm single grating with a period of 9.0 μm, we generate 310 mW of picosecond radiation at 532 nm for a fundamental power of 1.6W, corresponding to a conversion efficiency of 19.3%. The temperature tuning range of 8°C is achieved for a fixed fundamental wavelength of 1064 nm, the FWHM of the wavelength tuning curve is 4.2 nm at room temperature. The generated ultrashort pulses at 532 nm are of great importance and have comprehensive applications in photobiology research and high-resolution spectroscopy.

© 2010 OSA

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.7110) Nonlinear optics : Ultrafast nonlinear optics
(220.4000) Optical design and fabrication : Microstructure fabrication
(320.7090) Ultrafast optics : Ultrafast lasers

ToC Category:
Nonlinear Optics

Original Manuscript: September 15, 2010
Revised Manuscript: October 16, 2010
Manuscript Accepted: October 29, 2010
Published: November 17, 2010

Chenghou Tu, Zhangchao Huang, Kai Lou, Hongjun Liu, Yishan Wang, Yongnan Li, Fuyun Lu, and Hui-Tian Wang, "Efficient green-light generation by frequency doubling of a picosecond all-fiber ytterbium-doped fiber amplifier in PPKTP waveguide inscribed by femtosecond laser direct writing," Opt. Express 18, 25183-25191 (2010)

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