Method and device for monitoring and controlling high-precision optical fiber optical frequency comb

A technology of fiber optics and measurement and control methods, applied in the field of lasers, can solve problems such as the blank measurement and control method and device of fiber optic comb light sources, and the absence of optical comb light source manufacturing and measurement standards, etc., to achieve stable output, stable output signals, and high system security Effect

Active Publication Date: 2014-07-02
CHONGQING HUAPU INTELLIGENT EQUIP CO LTD
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

But at present, there is almost no measurement and control method and device for the commercialized fiber optic comb light

Method used

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  • Method and device for monitoring and controlling high-precision optical fiber optical frequency comb
  • Method and device for monitoring and controlling high-precision optical fiber optical frequency comb
  • Method and device for monitoring and controlling high-precision optical fiber optical frequency comb

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Embodiment Construction

[0053] The present invention and other related features will be described in further detail below in conjunction with the accompanying drawings through implementation, so as to facilitate the understanding of those skilled in the same industry:

[0054] refer to figure 1 The device of the present invention is composed of a laser oscillator 100, a primary preamplifier 400, a secondary preamplifier 600, a main amplifier 700, a repetition rate calibration device 200, a power monitoring and control device 300, and a carrier envelope phase monitoring and control device 500. in:

[0055] The laser oscillator 100 is used to generate low energy picosecond device seed pulses. In this embodiment, a light source with a repetition frequency of 100 MHz, a center wavelength of 1034 nm, and an optical frequency of 290 THz is taken as an example. The average power output by the laser oscillator 100 is several to several tens of milliwatts.

[0056] An output end of the laser oscillator 100...

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Abstract

The invention discloses a method and device for monitoring and controlling a high-precision optical fiber optical frequency comb. The method and device are used for monitoring and controlling working conditions of links of the optical fiber optical frequency comb and improving the long-term stability, the operation reliability and the product replicability of the optical fiber optical frequency comb. By means of the device, pulse carrier-envelope phases output by an optical fiber laser oscillator and optical fiber amplifiers in all stages are monitored, transmission and fluctuation of laser phase noise in the power amplification process are observed and controlled, carrier-envelope phase output signals of the main amplifier are negatively fed back to a carrier-envelope phase control unit in the laser oscillator, namely an electronic control polarization controller modulates the pulse polarization evolution process or modulates the pump light strength of the laser oscillator, and stable control over the carrier-envelope phases is achieved. By means of the method and device, the working conditions of the laser oscillator and the amplifiers in all stages can be monitored and controlled in real time, monitoring indexes are timely and comprehensive, and a stable and reliable feedback mechanism is provided.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a method and device for measuring and controlling a high-precision fiber optic frequency comb. Background technique [0002] After decades of development, lasers, especially solid-state lasers for industrial applications, have high stability and reliability of work, and good product consistency and reproducibility. There are many companies at home and abroad that can produce laser light source products with consistent specifications. In recent years, fiber lasers have been increasingly favored by people and recognized by customers for their flexible waveguide transmission characteristics, smart packaging, and high-efficiency and low-consumption manufacturing costs. The output indicators of fiber lasers continue to catch up with solid-state lasers. The continuous wave 20kW fiber laser produced by IPG has been used in photoelectric arc hybrid welding technology, and pulsed fiber la...

Claims

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Application Information

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IPC IPC(8): H01S3/10H01S3/13H01S3/137
Inventor 郝强张青山郭政儒曾和平
Owner CHONGQING HUAPU INTELLIGENT EQUIP CO LTD
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