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首页> 外文期刊>Selected Topics in Quantum Electronics, IEEE Journal of >Nonlinear Temperature Dependence of Resonant Pump Wavelengths in Optical Pumping Injection Cavity Lasers
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Nonlinear Temperature Dependence of Resonant Pump Wavelengths in Optical Pumping Injection Cavity Lasers

机译:光学泵浦注入腔激光器中谐振泵浦波长的非线性温度依赖性

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摘要

Type-II W optical pumping injection cavity lasers emitting ∼3 μm at room temperature are pumped resonantly by tuning with an optical parametric oscillator. The resonance pump wavelength consistently is found to vary quadratically with temperature. Linear corrections to the lattice constant and index of refraction with temperature do not adequately account for this trend. Using multilayer reflectivity modeling, this nonlinear temperature dependence is attributed to gain-induced changes in the refractive index of the active region and spacer layers that result from the increase in optical pumping intensity with increasing temperature.
机译:通过使用光学参量振荡器进行调谐,可以在室温下发出〜3μm的II型W光泵浦注入腔激光器。共振泵浦波长始终随温度呈二次方变化。随温度对晶格常数和折射率的线性校正不足以解决这一趋势。使用多层反射率建模,这种非线性温度依赖性归因于有源区和间隔层的折射率引起的增益变化,该变化是由于光泵浦强度随温度升高而增加引起的。

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