Laser frequency instability of 6 × 10<sup>−16</sup> using 10-cm-long cavities on a cubic spacer

Xiaotong Chen; Yanyi Jiang; Bo Li; Hongfu Yu; Haifeng Jiang; Tao Wang; Yuan Yao; Longsheng Ma

doi:doi:10.3788/COL202018.030201

Chinese Optics Letters, 2020, 18 (3): 030201, Published Online: Feb. 24, 2020

Laser frequency instability of 6 × 10⁻¹⁶ using 10-cm-long cavities on a cubic spacer Download： 1099次

Xiaotong Chen ¹Yanyi Jiang ^1,*Bo Li ¹Hongfu Yu ¹Haifeng Jiang ²Tao Wang ³Yuan Yao ^1,**Longsheng Ma ¹

Author Affiliations

¹ State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China

² Key Laboratory of Time and Frequency Primary Standards, National Time Service Center, Xi’an 710600, China

³ AVIC Xi’an Flight Automatic Control Research Institute, Xi’an 710065, China

Figures & Tables

Fig. 1. Design of transportable reference cavities. (a) The cubic cavity spacer. (b) The cavities mounted on an aluminum cage. (c) The displacement of probe points at different positions along the $z$ axis on the mirrors of cavity 1 under an acceleration of 1g along the $z$ axis. (d) The length change of two cavities under an acceleration of 1g along the $y$ axis. Three curves are overlapped.

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Fig. 2. Schematic diagram of the experimental setup for (a) laser frequency stabilization and (b) laser performance measurement. AOM, acousto-optic modulator; FNC, fiber noise cancellation; P, polarizer; EOM, electro-optic modulator; Iso, optical isolator; $λ / 4$ , quarter-wave plate; PD, photo-detector; FFT, fast Fourier transform spectrum analyzer.

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Fig. 3. Laser frequency instability measurement.

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Xiaotong Chen, Yanyi Jiang, Bo Li, Hongfu Yu, Haifeng Jiang, Tao Wang, Yuan Yao, Longsheng Ma. Laser frequency instability of 6 × 10⁻¹⁶ using 10-cm-long cavities on a cubic spacer[J]. Chinese Optics Letters, 2020, 18(3): 030201.

Laser frequency instability of 6 × 10⁻¹⁶ using 10-cm-long cavities on a cubic spacer Download： 1099次

Fig. 3. Laser frequency instability measurement.

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Laser frequency instability of 6 × 10−16 using 10-cm-long cavities on a cubic spacer Download： 1099次

Fig. 3. Laser frequency instability measurement.

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Laser frequency instability of 6 × 10⁻¹⁶ using 10-cm-long cavities on a cubic spacer Download： 1099次