Journal
OPTICS COMMUNICATIONS
Volume 306, Issue -, Pages 165-169Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2013.05.051
Keywords
Eye-safe Raman laser; Dual-wavelength; Diode-side-pumped
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Funding
- National Natural Science Foundation of China [11004122, 11204160]
- Special Grade of China Postdoctoral Science Foundation [201104627]
- Shandong Provincial Natural Science Foundation [ZR2012FQ025]
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A diode-side-pumped, actively Q-switched eye-safe dual-wavelength laser employing crystal Nd:YAG as gain medium and BaWO4 as Raman medium is demonstrated for the first time to the best of our knowledge. The dual-wavelength Raman laser emission at 1502 and 1527 nm is based on the stimulated Raman scattering action of the dual-wavelength fundamental laser emission at 1319 and 1338 nm. With the pump power of 125 W and pulse repetition frequency of 5 kHz, the maximum dual-wavelength output power of 2.3 W was obtained, comprising a 1.4W, 1505 nm laser component and a 0.9W, 1527 nm laser component. The simultaneous Q-switching and mode locking of the dual-wavelength Stokes laser without mode locking component was obtained at the pump power of about 50-90 W and the pulse repetition frequency of 1 kHz. The mode-locked pulse width was less than 75 ps at the pump power of 90W. (C) 2013 Elsevier B.V. All rights reserved.
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