Double-resonance optical-pumping spectra of rubidium 5S1/2 - 5P3/2 - 4D3/2 transitions and frequency stabilization of 1.5-micrometer laser

Jing Gao; Jie Wang; Baodong Yang; Tiancai Zhang; Junmin Wang

doi:10.1117/12.871685

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4 November 2010 Double-resonance optical-pumping spectra of rubidium 5S_1/2 - 5P_3/2 - 4D_3/2 transitions and frequency stabilization of 1.5-micrometer laser

Jing Gao, Jie Wang, Baodong Yang, Tiancai Zhang, Junmin Wang

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Proceedings Volume 7846, Quantum and Nonlinear Optics; 784618 (2010) https://doi.org/10.1117/12.871685
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

We demonstrate the spectra of ⁸⁷Rb 5S_1/2 - 5P_3/2 - 4D_3/2 transitions by utilizing the double-resonance optical-pumping (DROP) and optical-optical double-resonance (OODR) techniques, respectively. The DROP spectrum, compared with the traditional OODR spectrum, show a much better signal-to-noise ratio (SNR). Paying special attention to the influence of alignment of lasers where the coupling and probe beams are counter-propagation and co-propagation on DROP spectrum, so as to further narrow the spectral width by means of electromagnetically induced transparency (EIT). When -the frequency of 1.5μm fiber-pigtailed butterfly-type distributed-feedback (DFB) diode laser is stabilized to the DROP spectrum of ⁸⁷Rb 5P_3/2 - 4D_3/2 transition, the preliminary result of residual frequency jitter after stabilization is ~ ±1.3 MHz within 60 s.

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Jing Gao, Jie Wang, Baodong Yang, Tiancai Zhang, and Junmin Wang "Double-resonance optical-pumping spectra of rubidium 5S_1/2 - 5P_3/2 - 4D_3/2 transitions and frequency stabilization of 1.5-micrometer laser", Proc. SPIE 7846, Quantum and Nonlinear Optics, 784618 (4 November 2010); https://doi.org/10.1117/12.871685

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