27 April 2016 Birefringent-multicrystal, single-pass, continuous-wave second-harmonic-generation in deep-ultraviolet
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We report implementation of compact cascaded multicrystal scheme for single-pass second-harmonic-generation (SHG), using birefringent crystal, for continuous-wave (cw) deep ultraviolet (UV) generation. The system comprises of 4 cascaded stages, is based on critical phase-matched interaction in β-BaB2O4 (BBO), and pumped by a cw singlefrequency green source at 532 nm. A deep-UV cw output power of 37.7 mW at 266 nm has been obtained with a high passive power stability of 0.12 % rms over more than 4 hours in Gaussian spatial beam quality with a circularity of >70%.
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Kavita Devi, Kavita Devi, S. Parsa, S. Parsa, M. Ebrahim-Zadeh, M. Ebrahim-Zadeh, } "Birefringent-multicrystal, single-pass, continuous-wave second-harmonic-generation in deep-ultraviolet ", Proc. SPIE 9894, Nonlinear Optics and its Applications IV, 98940R (27 April 2016); doi: 10.1117/12.2227630; https://doi.org/10.1117/12.2227630

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