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A robust external cavity diode laser(ECDL) insensitive to mechanical vibration is built with an interference filter for selecting wavelength and a cat-eye reflector for light feedback.The free-running laser has a linewidth of 72 kHz.The laser frequency stability reaches 3×10~(-12) at 1-s integration time in terms of relative Allan variance based on the saturation absorption spectrum.
A robust external cavity diode laser (ECDL) insensitive to mechanical vibration is built with an interference filter for selecting wavelength and a cat-eye reflector for light feedback. The free-running laser has a linewidth of 72 kHz. The laser frequency stability reaches 3 × 10 ~ (-12) at 1-s integration time in terms of relative Allan variance based on the saturation absorption spectrum.