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We demonstrated a compact linear-polarized planer waveguide laser with diode proximity-coupling pump geometry, and uniaxial laser material of Nd:GdVO4 The laser cavity size is as small as 4-mm times 1 mm including the 5-stripe pumping diode, the total output power of 1.7-W for five independent nearly diffraction- limited beams was obtained at the pumping diode output power of 5.7-W.
We have developed a simple and portable diagnosis system on site for solar power modules with step1, step2 to check modules and cells in them respectively. By the first step, we compound modules' IV curve using Isc and Voc data measured under flashlight to get modules' performance. By the second step, Isc of each cell in the modules is decided using a ND filter. The results by the first step for c-Si...
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