Digital long-term laser frequency stabilization withan optical frequency comb

2021 ◽  
Author(s):  
Peng Peng Zhou ◽  
Wei Sun ◽  
Shiyong Liang ◽  
Shaolong Chen ◽  
Zhiqiang Zhou ◽  
...  
Keyword(s):  
Frequency Comb ◽  
Laser Frequency ◽  
Frequency Stabilization ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Laser Frequency Stabilization

All polarization-maintaining Er:fiber-based optical frequency comb for frequency comparison of optical clocks

2021 ◽  
Author(s):  
Zhang Pan ◽  
Zhang Yan-Yan ◽  
Li Ming-Kun ◽  
Rao Bing-Jie ◽  
Yan Lu-Lu ◽  
...  
Keyword(s):  
Frequency Comb ◽  
Signal To Noise Ratio ◽  
Frequency Instability ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Thermal Drift ◽  
Signal To Noise ◽  
Frequency Comparison ◽  
Polarization Maintaining

Abstract In this research, we demonstrate an optical frequency comb (OFC) based on a turnkey mode-locked laser with a figure-9 structure and polarization-maintaining fibers for frequency comparison between optical clocks with wavelengths of 698 nm, 729 nm, 1068 nm and 1156 nm. We adopt a multi-branch approach in order to produce high power OFC signals at these specific wavelengths, enabling the signal-to-noise ratio of the beatnotes between the OFC and the clock lasers beyond 30 dB at a resolution bandwidth of 300 kHz. This approach makes the supercontinuum spectra generating process much easier in comparison to a single branch OFC; however, more out-of-loop fibers degrade the long term frequency instability due to thermal drift. To minimize the thermal drift effect, we set the fiber lengths of different branches to be similar, and we stabilize the temperature as well. The out-of-loop frequency instability of the OFC due to the incoherence of the multi-branch is about 5.5×10-19 @ 4000 s, while the in-loop frequency instability of f ceo and that of f beat are 7.5×10-18 @1 s and 8.5×10-18 @1 s, respectively. The turnkey OFC meets the requirement of frequency comparison between the best optical clocks.

scholarly journals A long-term frequency-stabilized erbium-fiber-laser-based optical frequency comb with an intra-cavity electro-optic modulator

2015 ◽  
Vol 24 (6) ◽  
pp. 064209 ◽  
Author(s):  
Yan-Yan Zhang ◽  
Lu-Lu Yan ◽  
Wen-Yu Zhao ◽  
Sen Meng ◽  
Song-Tao Fan ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Frequency Comb ◽  
Optical Frequency Comb ◽  
Optical Frequency ◽  
Term Frequency ◽  
Electro Optic ◽  
Electro Optic Modulator

scholarly journals Long-term laser frequency stabilization using fiber interferometers

2015 ◽  
Vol 86 (7) ◽  
pp. 073104 ◽  
Author(s):  
Jia Kong ◽  
Vito Giovanni Lucivero ◽  
Ricardo Jiménez-Martínez ◽  
Morgan W. Mitchell
Keyword(s):  
Laser Frequency ◽  
Frequency Stabilization ◽  
Laser Frequency Stabilization ◽  
Fiber Interferometers
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