Continuously wavelength-spacing-tunable and idler-output multiwavelength fiber optical parametric oscillator

• Published in: Optics communications Vol. 284; no. 12; pp. 2992 - 2996
• Main Authors: Luo, Zhengqian, Zhong, Wen-De, Ye, Chenchun, Xu, Huiying, Cai, Zhiping
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-06-2011
• Subjects: Continuous fibers; Fiber; Fiber optics; Fibers; Idler - output; Idlers; Multiwavelength; Optical fibers; Optical parametric oscillator; Parametric oscillators; Spacing-tunable; Tuning; Wavelengths; Optical parametric oscillator; Spacing-tunable; Idler - output; Fiber; Multiwavelength
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/j.optcom.2011.01.085

We demonstrate a continuously wavelength-spacing-tunable and high-power multiwavelength fiber optical parametric oscillator based on the multiwavelength idler-output technique. The laser cavity for multiwavelength idler outputs is constructed by a pumped highly-nonlinear dispersion-shifted fiber as parametric gain medium, two highly-reflective chirped fiber Bragg gratings (CFBGs) and a superimposed CFBG as comb-like filter. At a pump power of 1.1
W, the idler output of 10 wavelengths around 1.56
μm is achieved with a wavelength spacing of 0.39
nm. The wavelength spacing can be continuously tuned from 0.39 to 1.0
nm by utilizing a cantilever beam-based chirp tuning method to change the FSR of the superimposed CFBG. Our experimental results show that the designed multiwavelength idler-output scheme can significantly increase the multiwavelength output power with a total output power of 98
mW and each idler-channel power of 16.3
mW.
► A high power multiwavelength fiber optical parametric oscillator is demonstrated. ► The novel laser cavity for multiwavelength idler-outputs is constructed. ► The wavelength spacing can be continuously tuned from 0.39 to 1.0
nm.