Method for generating ultraviolet optical frequency comb drive source

A generation method and frequency comb technology, applied to lasers, laser components, electrical components, etc., to achieve high repetition frequency, reduce temperature and vibration requirements

Inactive Publication Date: 2009-05-27
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the generation of ultraviolet and extreme ultraviolet combs is mostly driven by external cavity enhanced femtosecond pulses to generate high-order harmonics, and its further development is still limited to extremely ultrafast and precisely controlled femtosecond pulses in the time-frequency

Method used

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  • Method for generating ultraviolet optical frequency comb drive source
  • Method for generating ultraviolet optical frequency comb drive source
  • Method for generating ultraviolet optical frequency comb drive source

Examples

Experimental program
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Embodiment

[0017] Embodiment: the steps of this embodiment are as figure 1 The schematic diagram shown, the specific steps are: (1) According to the requirements, select a commercially available Ti:Sapphire laser oscillator with stable carrier phase, whose output spectrum covers a wide frequency range from 650nm to 1100nm. (2) The output laser of the CEP-stabilized Ti:Sapphire laser is split, and part of it is used as a synchronously amplified seed light to drive a fiber laser that uses nonlinear phase deflection and gain modulation to mode-lock. The output center wavelength of the fiber laser is In the 1 micron band, the polarization deflection is induced by the cross-phase modulation between the external pulse and the optical field in the loop, and the cross-phase modulation and harmonic mode-locking technology are used to make the working state of the fiber laser completely modulated by the titanium sapphire laser. The titanium sapphire laser maintains a synchronous state, and the ou...

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PUM

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Abstract

The invention relates to a method for generating a drive source of an ultraviolet optical frequency comb. The method comprises the steps of synchronous control of laser and chirped pulse amplification of optical parameters, wherein ultrashort pulses outputted by a laser with stable carrier phase are divided into two beams; one beam is used as signal light to be amplified for chirped pulse amplification of the optical parameters, and the other beam is used for generating synchronous pumping signals through crossed phase modulation or gain selective amplification; picosecond and nanosecond intense pulse laser is taken as a pumping source for chirped pulse amplification of the optical parameters; and ultrashort and ultra-intense laser output is obtained by utilization of compression of grating pairs at an output end for chirped pulse amplification of the optical parameters. The method has the advantages that the method does not need a complex circuit system, can greatly reduce the requirement on the environment and particularly on temperature and vibration, and can obtain the ultraviolet optical frequency comb which has a wider application scope, relatively high power and high repetition frequency and shorter wavelength.

Description

technical field [0001] The invention relates to the direction of ultrafast laser technology, in particular to a method for generating a drive source for an ultraviolet optical frequency comb. Background technique [0002] The development of laser-based precision spectroscopy has greatly improved the ability of human beings to explore the laws of nature. It has been recognized by the scientific community as the most powerful tool for human beings to reveal new structures and new phenomena of matter, explore the physical laws of the microscopic world, and understand the atomic and molecular structures. . At the end of the 20th century, scientists broke through the barriers in the field of light field time domain and frequency domain research through the research of femtosecond laser frequency stabilization technology and the precise control of the carrier phase of ultrafast lasers, and realized simultaneous precise control of light field time-frequency domain And femtosecond ...

Claims

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Application Information

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IPC IPC(8): H01S3/00
Inventor 李文雪郝强潘海峰曾和平
Owner EAST CHINA NORMAL UNIV
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