Acta Optica Sinica, Volume. 24, Issue 10, 1330(2004)
Experimental Investigation of Quasi-CW Frequency-Doubling of Broad Band Fiber Laser in Periodically Poled Lithium Niobate
Developments in double clad fiber lasers, coupled with engineered nonlinear optical materials such as periodically poled lithium niobate (PPLN), are opening a way for a whole new class of practical nonlinear optical devices. Temperature characteristic and spectra characteristic of second harmonic generaration (SHG) in PPLN using quasi-CW broad band fiber laser have been investigated. The central fundamental wavelength dependence of PPLN temperature and the temperature FWHM phase-matching bandwidth were theoretically studied. The fundamental wavelength FWHM phase-matching of PPLN was calculated too. The 20 mm long PPLN with 6.5 μm poling period and 0.5 mm thick was used for doubling frequency of the quasi-CW broad fiber laser. The spectra of second harmonic at different temperature are achieved and discussed in detail.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Experimental Investigation of Quasi-CW Frequency-Doubling of Broad Band Fiber Laser in Periodically Poled Lithium Niobate[J]. Acta Optica Sinica, 2004, 24(10): 1330