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Optical microcavity resonance peak calibration method based on hydrogen cyanide gas cell

A technology of optical microcavity and calibration method, applied in the field of optical microcavity, can solve the problems of resonance peak drift, destroying the stability of Kerr optical frequency comb, etc., and achieve the effect of wide absorption spectrum line

Pending Publication Date: 2021-09-21
TIANJIN UNIV
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Problems solved by technology

In the process of generating and stabilizing the Kerr optical frequency comb, the influence of various factors such as temperature makes the resonance peak drift and destroys the stability of the Kerr optical frequency comb

Method used

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  • Optical microcavity resonance peak calibration method based on hydrogen cyanide gas cell
  • Optical microcavity resonance peak calibration method based on hydrogen cyanide gas cell

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Embodiment Construction

[0025] In order to further understand the invention content, characteristics and effects of the present invention, the following embodiments are enumerated hereby, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0026] Such as figure 1 Shown, a kind of optical microcavity resonant peak calibration method based on hydrogen cyanide gas pool is characterized in that, comprises:

[0027] A light source tuning module 1, the light source tuning module 1 is used to generate laser light with variable frequency, including a tunable laser 11, a polarization controller 12 and an optical beam splitter 13;

[0028] Calibration module 2, which includes a hydrogen cyanide gas cell 21, an optical microcavity 22, a first photodetector 23, a second photodetector 24 and an oscilloscope 25;

[0029] The tunable laser 11 is sequentially connected with the polarization controller 12 and the optical beam splitter 13, and the laser light with continuously ch...

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Abstract

The invention discloses an optical microcavity resonance peak calibration method based on a hydrogen cyanide gas cell, which utilizes the characteristic of the hydrogen cyanide gas cell for specific wavelength absorption and the resonance characteristic of an optical microcavity, and has the characteristics of good repeatability and high stability, The absorption spectrum line with the advantages of wide range and the like is used for calibrating the power transmission curve of the optical microcavity, so that the problem that the resonance peak frequency corresponding to the corresponding power transmission curve is difficult to accurately determine when the tunable laser is used for continuous frequency sweeping is effectively solved, the reference calibration of the wavelength position corresponding to the resonance peak is realized, and the method provides guarantee for generation and control of the optical frequency comb, and has a wide application prospect.

Description

technical field [0001] The invention belongs to the field of optical microcavities, and in particular relates to a method for calibrating optical microcavity resonance peaks based on a hydrogen cyanide gas pool. Background technique [0002] The small size of the optical microcavity mode and the extremely high quality factor make the threshold for the occurrence of nonlinear effects significantly lower, and then the Kerr optical frequency comb can be generated in the optical microcavity. The Kerr optical frequency comb with the advantages of high repetition rate, wide spectrum and good coherence has a good application prospect in the fields of metrology, spectroscopy and distance measurement. In the process of generating and stabilizing the Kerr optical frequency comb, various factors such as temperature make the resonant peak drift and destroy the stability of the Kerr optical frequency comb. Accurate identification of the resonance peak position is critical. Therefore, a...

Claims

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Application Information

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IPC IPC(8): G01N21/41G01N21/31
CPCG01N21/41G01N21/31
Inventor 倪菱蔓张福民郑继辉宋明宇贾琳华马鑫曲兴华
Owner TIANJIN UNIV
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