External cavity diode laser with kilohertz linewidth by a monolithic folded Fabry-Perot cavity optical feedback.

Abstract

We present a extended-cavity diode laser (ECDL) with kilohertz linewidth by optical feedback from a monolithic folded Fabry-Perot cavity (MFC). In our experiments, an MFC replaces the retroreflecting mirror in the traditional ECDL configuration. Beat-note measurements between this MFC-ECDL and a narrow-linewidth reference laser are performed and demonstrate that the linewidth of this MFC-ECDL is about 6.8 kHz. Phase locking of this MFC-ECDL to the reference laser is achieved with a unity gain as small as 10.2 kHz.

DOI: 10.1364/OL.36.000034

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Cite this paper

@article{Zhao2011ExternalCD, title={External cavity diode laser with kilohertz linewidth by a monolithic folded Fabry-Perot cavity optical feedback.}, author={Yang Zhao and Yu Peng and Tao Yang and Ye Li and Qiang Wang and Fei Meng and Jianping Cao and Zhanjun Fang and Tianchu Li and Erjun Zang}, journal={Optics letters}, year={2011}, volume={36 1}, pages={34-6} }