We demonstrate a carrier-envelope-offset-stabilized, self-referenceable Yb:CaF₂ oscillator pumped by a single-mode laser diode. By exploiting mode-locking regime based on simultaneous action of the SESAM and the Kerr lens effect we achieved self-starting generation of 85 fs pulses with a peak power approaching 47 kW. The carrier-envelope offset detection scheme was based on a standard $f$ -to- $2f$ interferometer with a spectral broadening in a highly nonlinear photonic crystal fiber. By employing a pump current feedback locking technique we achieved an in-loop integrated phase noise reaching 67 mrad in the 1 Hz – 1 MHz range. This exceptionally stable operation was enabled by a single-mode pump diode exhibiting intrinsically low-noise characteristics.

中文翻译：

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低噪声载波包络偏移稳定 Yb:CaF2 振荡器

我们展示了一个由单模激光二极管泵浦的载波包络偏移稳定、自参考 Yb:CaF ₂振荡器。通过利用基于 SESAM 和克尔透镜效应同时作用的锁模机制，我们实现了 85 fs 脉冲的自启动生成，峰值功率接近 47 kW。载波包络偏移检测方案基于标准 $f$ -至- $2f$ 在高度非线性光子晶体光纤中具有光谱展宽的干涉仪。通过采用泵浦电流反馈锁定技术，我们在 1 Hz – 1 MHz 范围内实现了达到 67 mrad 的环路集成相位噪声。这种异常稳定的操作是由一个具有固有低噪声特性的单模泵浦二极管实现的。