Phosphate Glass Waveguide Amplifiers
铒镱共掺磷酸盐玻璃波导放大器及上转换性质

An Er3+-Yb3+ co-doped phosphate glass waveguide for applications in optical amplifiers is studied.The optical gain at the wavelength of 1535nm is measured,and an 8.5dB relative gain in a 1.2cm device is observed when the waveguide is pumped with a 976nm laser with 130mW of power.In this case,the device shows strong green luminescence,and the intensity increases as the power of the pump laser increases.Also,upconversion from 2H11/2 and 4S3/2 levels is confirmed by using a photomultiplier and a monochromator.