Low cost photonic comb for sub-m/s wavelength calibration
Low cost photonic comb for sub-m/s wavelength calibration
复制标题
用于亚米/秒波长校准的低成本光子梳
DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
S. Leon
中科院分区:
文献类型:
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作者:
C. Betters;M. Hermouet;Thomas Blanc;J. Colless;J. Bland;J. Kos;S. Leon
A fundamental limitation of precision radial velocity measurements is the accuracy and stability of the calibration source. Here we present a low-cost alternative to more complex laser metrology based systems that utilises a single-mode fibre Fabry-Perot etalon. There are three key elements on this photonic comb: i) an optical fibre etalon with thermo-electric coolers; ii) a Rubidium Saturation Absorption Spectroscopy (SAS) setup; and iii) an optical fibre switch system for simultaneous laser locking of the etalon. We simultaneously measure the Rubidium D2 transitions around 780.2 nm and the closest etalon line. A PID loop controls the etalon temperate to maintain the position of its peak with an RMS error of <10cm/s for 10 minute integration intervals in continous operation. The optical fibre switch system allows for a time multiplexed coupling of the etalon to a spectrograph and SAS system.
影响因子:
6.5
作者:
A. Reiners;R. Banyal;R. Ulbrich
通讯作者:
A. Reiners;R. Banyal;R. Ulbrich