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Tunable ultraviolet light generation apparatus based on self-similarity amplifier

A generation device and amplifier technology, applied in the field of ultrafast optics, can solve the problems of narrow ultraviolet spectrum, inability to compensate, and inaccessibility, and achieve the effects of wide spectrum, high amplification efficiency, and strong ability to resist environmental disturbances

Inactive Publication Date: 2016-04-13
EAST CHINA NORMAL UNIVERSITY
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the commonly used chirped pulse fiber amplifier amplifies the laser source to obtain high-power optical pulses, it cannot obtain a wider spectrum due to the limitation of the gain bandwidth. 100fs, so we often face problems such as low efficiency and narrow ultraviolet spectrum when frequency doubling to obtain ultraviolet spectrum

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  • Tunable ultraviolet light generation apparatus based on self-similarity amplifier
  • Tunable ultraviolet light generation apparatus based on self-similarity amplifier

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Embodiment 1

[0032] Embodiment 1: as figure 1 As shown, this embodiment specifically relates to a self-similar amplifier-based tunable ultraviolet light generating device, which is mainly composed of an ultrashort pulse fiber laser 000 connected in sequence, a cascaded high-power amplifier 100 and a frequency quadruple system 200; where the cascaded high power amplifier 100 is composed of a first-stage amplifier 100a, a second-stage amplifier 100b, a pre-chirp management module 100c, a third-stage amplifier 100d and a chirp compensation module 100e connected in sequence, the first The first-stage amplifier 100a is amplified by a single-mode gain fiber, the second-stage amplifier 100b is a chirped pulse amplifier using a large-mode field photonic crystal gain fiber, and the third-stage amplifier 100d is a pre-chirped management module 100c introduced and a large-mode field photonic crystal Self-similar amplifiers for crystal gain fibers.

[0033] Such as figure 1 As shown, the method for ...

Embodiment 2

[0038] Embodiment 2: as figure 1 , 2 As shown, this embodiment specifically relates to a self-similar amplifier-based tunable ultraviolet light generating device, which is mainly composed of an ultrashort pulse fiber laser 000 connected in sequence, a cascaded high-power amplifier 100 and a frequency quadruple system 200 compositions.

[0039] Ultrashort pulse fiber laser 000 includes semiconductor laser pump source 001, single-mode fiber 002, gain fiber 003, single-mode fiber 004, semiconductor laser pump source 005, wavelength selective fiber collimator 006, quarter wave plate 007, half-wave plate 008, polarization beam splitter 009, quarter-wave plate 010, grating 011, grating 012, zero-degree high mirror 013, isolator 014, quarter-wave plate 015 and wavelength Selective fiber collimator 016; among them, single-mode fiber 002, gain fiber 003, single-mode fiber 004, wavelength selective fiber collimator 006, quarter-wave plate 007, half-wave plate 008, polarization The be...

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Abstract

The invention discloses a tunable ultraviolet light generation apparatus based on a self-similarity amplifier. The tunable ultraviolet light generation apparatus is characterized by comprising an ultra-short pulse optical fiber laser, a cascading high-power amplifier and a quadruplicated frequency system connected in sequences, wherein the cascading high-power amplifier comprises a first-level amplifier, a second-level amplifier, a pre-chirping management module, a third-level amplifier and a chirping compensation module. The tunable ultraviolet light generation apparatus has the advantages that the near infrared light obtained by a pre-chirping management technology and a self-similarity amplifying system is quite narrow in pulse width and high in power, so that frequency multiplication efficiency is high, and high-power ultraviolet laser can be obtained; and in addition, the infrared laser generated based on self-similarity amplification has the broadband spectrum characteristic, and tunable high-power laser output within an ultraviolet band range can be realized.

Description

technical field [0001] The invention belongs to the technical field of ultrafast optics, and in particular relates to a tunable ultraviolet light generation device based on a self-similar amplifier. Background technique [0002] High-power ultra-short pulse ultraviolet laser source is a very important application tool in scientific research and industrial production. It is widely used to detect and control ultra-fast physical and chemical processes. Industrial production is also commonly used for photolithography. . Compared with infrared light and visible light, ultraviolet light has the advantages of short wavelength, good penetrability, high energy, and high resolution, so it has become one of the important research directions in the field of laser technology. There are two main techniques for generating high-power ultrashort-pulse UV laser sources: direct generation and nonlinear optical generation. [0003] The direct method is to select the gain medium in the ultravi...

Claims

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Application Information

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IPC IPC(8): H01S3/094H01S3/0941H01S3/10H01S3/109G02F1/39
CPCH01S3/094042G02F1/39H01S3/0941H01S3/10007H01S3/109
Inventor 罗大平李文雪刘洋王超曾和平
Owner EAST CHINA NORMAL UNIVERSITY
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