A versatile bidirectional passively mode-locked all-fiber laser system

A passive mode-locking and laser system technology, applied in the laser field, can solve the problem that fiber lasers are difficult to output ultrashort pulses at the same time, and achieve the effects of vibration insensitivity, good beam quality, and good heat dissipation

Inactive Publication Date: 2019-02-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that it is difficult to simultaneously output two types of ultrashort pulses in existing fiber lasers, and propose a multi-purpose bidirectional passive mode-locked all-fiber laser system

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  • A versatile bidirectional passively mode-locked all-fiber laser system
  • A versatile bidirectional passively mode-locked all-fiber laser system
  • A versatile bidirectional passively mode-locked all-fiber laser system

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Embodiment Construction

[0033] The embodiments of the present invention will be further described below in conjunction with the drawings.

[0034] The invention provides a multi-purpose bidirectional passive mode-locked all-fiber laser system, such as figure 1 As shown, including pump source 1, wavelength division multiplexer 2, erbium-doped gain fiber 3, 2×2 output coupler 4, first 3dB optical coupler 5, second 3dB optical coupler 6, first polarization dependent The isolator 7, the first polarization controller 8, the second polarization dependent isolator 9, the second polarization controller 10, the dispersion compensation fiber 11, and the single-mode fiber 14. Wavelength division multiplexer 2, erbium-doped gain fiber 3, second 3dB optical coupler 6, second polarization dependent isolator 9, second polarization controller 10, first 3dB optical coupler 5, 2×2 output coupler 4 In turn, the dispersion compensation fiber 11 is connected in a closed loop to form a clockwise laser system; wavelength divi...

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Abstract

The invention discloses a multi-purpose bidirectional passive mode-locked all-fiber laser system, aiming to solve the technical problem that it is difficult to simultaneously output two types of ultrashort optical pulses in existing fiber lasers. The system includes a pump source (1), a wavelength division multiplexer (2), an erbium-doped gain fiber (3), a 2×2 output coupler (4), a first 3dB optical coupler (5), a second 3dB optical coupler (6), first polarization-dependent isolator (7), first polarization controller (8), second polarization-dependent isolator (9), second polarization controller (10), dispersion compensation fiber ( 11) and single-mode fiber (14). The 2×2 output coupler (4) outputs bidirectional mode-locked pulses, and its first output end (12) is connected with a single-mode optical fiber (14) outside the cavity for time-domain compression outside the cavity of the output pulses, so as to To obtain ultrashort pulses with high peak power, the second output terminal (13) directly outputs high energy dissipation soliton resonance pulses. The invention has the advantages of low cost and wide application range, and can be used as a high-peak-power femtosecond pulse light source, a high-energy picosecond and nanosecond pulse light source, and can also be used as a seed source for a high-energy pulse amplifier.

Description

Technical field [0001] The invention belongs to the field of laser technology, and specifically relates to the design of a multi-purpose bidirectional passive mode-locked all-fiber laser system. Background technique [0002] Ultrashort pulse fiber laser is one of the hot research topics worldwide. Ultra-short pulses are widely used in basic scientific research, high-speed optical communications, optical signal processing, micro-machining, ultra-fast laser spectroscopy, quantum coherence control, medical treatment, etc. due to their extremely narrow pulse width, high peak power, and high energy. Precision measurement and other fields. Specifically, high peak power ultrashort pulses can be used in laser micromachining, laser inertial confinement nuclear fusion and other fields; high energy ultrashort pulses can be used in fiber sensing, supercontinuum generation and other fields. Passive mode-locking technology is one of the main methods to obtain ultrashort pulses due to its sim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/11H01S3/067
CPCH01S3/067H01S3/1109H01S3/1121
Inventor 杜文雄李和平申圣男张旨遥张尚剑刘永
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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