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A high polarization Nd:YVO 4 /KTP laser with dual crossed gain crystal is reported. Using two optical axis orthogonal Nd:YVO 4 crystal as gain medium, eliminating the depolarization effect of single Nd:YVO 4 crystal, the high polarization green laser is obtained. With 1.8W diode laser pump power the output power of TEM 00 green laser is 366mW, the light–light conversion...
A FFT-based partial matched filter (PMF) acquisition threshold setting method for fast GPS acquisition is presented. Normal distribution and numerical fitting technique instead of real decision variable (DV) distribution are used in derivation to approximate the threshold expression, and the modification method for the threshold expression is also presented. The threshold expression is based on the...
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