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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Femtosecond laser direct writing of gratings and waveguides in high quantum efficiency erbium-doped Baccarat glass
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Femtosecond laser direct writing of gratings and waveguides in high quantum efficiency erbium-doped Baccarat glass

机译:飞秒激光直接写入高量子效率掺B百家乐玻璃中的光栅和波导

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摘要

The femtosecond laser direct writing technique was employed to inscribe gratings andwaveguides in high quantum efficiency erbium-doped Baccarat glass. Using the butt couplingtechnique, a systematic study of waveguide loss with respect to input pulse energy and writingspeed was performed to achieve the best waveguide with low propagation loss (PL). Bypumping at 980 nm, we observed signal enhancement in these active waveguides in thetelecom spectral region. The refractive index change was smooth and we estimated it to be—10~(-3). The high quantum efficiency (~80%) and a best PL of~0.9 dB cm~(-1) combined withsignal enhancement makes Baccarat glass a potential candidate for application in photonics.
机译:飞秒激光直接写入技术用于在高量子效率掺do百家乐玻璃中刻写光栅和波导。使用对接耦合技术,针对输入脉冲能量和写入速度进行了波导损耗的系统研究,以实现具有低传播损耗(PL)的最佳波导。通过在980 nm处泵浦,我们在电信频谱区域的这些有源波导中观察到信号增强。折射率变化是平滑的,我们估计它是10〜(-3)。高量子效率(〜80%)和约0.9 dB cm〜(-1)的最佳PL与信号增强相结合,使百家乐玻璃成为光子学应用的潜在候选者。

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