论文标题
声子谐波对光谱纯共振的stokes场的影响
The influence of phonon harmonicity on spectrally pure resonant Stokes fields
论文作者
论文摘要
由于它们高度连贯的发射和紧凑的外形尺寸，单轴向模式钻石拉曼激光器已被确定为用于应用程序的宝贵资产，包括集成量子技术，高分辨率光谱或相干的光学通信。尽管这些激光器的基本发射线宽可能是傅立叶限制的，但它们的热光特性导致其载体频率漂移，这对需要超稳发射的应用构成了重要的挑战。我们在这里提出了一种通过使用在整体式Fabry-Perot（FP）Diamond Raman谐振器中产生的站立式钻石折射温度依赖温度依赖的钻石折射指数的方法。我们的方法考虑了温度对一阶声子线的影响以及在强烈刺激的拉曼散射（SRS）条件下的平均晶格声子频率。我们进一步利用该模型来计算可见光谱范围内钻石的温度依赖性热线系数和Gruneisen参数。该理论伴随着可调型傅立叶限制的Stokes纳秒脉冲，其稳定中心频率偏差小于4 MHz。
Thanks to their highly coherent emission and compact form factor, single axial mode diamond Raman lasers have been identified as a valuable asset for applications including integrated quantum technology, high resolution spectroscopy or coherent optical communications. While the fundamental emission linewidth of these lasers can be Fourier limited, their thermo-optic characteristics lead to drifts in their carrier frequency, posing important challenges for applications requiring ultra-stable emission. We propose here a method for measuring accurately the temperature-dependent index of refraction of diamond by employing standing Stokes waves produced in a monolithic Fabry-Perot (FP) diamond Raman resonator. Our approach takes into account the influence of the temperature on the first-order phonon line and the average lattice phonon frequency under intense stimulated Raman scattering (SRS) conditions. We further utilize this model to calculate the temperature-dependent thermo-optic coefficient and the Gruneisen parameter of diamond in the visible spectral range. The theory is accompanied by the demonstration of tunable Fourier-limited Stokes nanosecond pulses with a stabilized center frequency deviation of less than <4 MHz.
