Multi-purpose bidirectional passive mode-locked full-fiber laser system

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

Inactive Publication Date: 2017-08-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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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

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Embodiment Construction

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

[0034] The present invention provides a multi-purpose bidirectional passive mode-locked all-fiber laser system, such as figure 1 As shown, it includes pump source 1, wavelength division multiplexer 2, erbium-doped gain fiber 3, 2×2 output coupler 4, the first 3dB optical coupler 5, the second 3dB optical coupler 6, the first polarization correlation An isolator 7 , a first polarization controller 8 , a second polarization-dependent isolator 9 , a second polarization controller 10 , a dispersion compensation fiber 11 and a 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 are sequentially connected in a closed-loop through the dispersion compensating optical fiber 1...

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Abstract

The invention discloses a multi-purpose bidirectional passive mode-locked full-fiber laser system and aims to solve a technical problem that it is difficult for a convention fiber laser device to output two types of ultra-short optical pulses simultaneously. The system comprises a pumping 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), a first polarization-dependent isolator (7), a first polarization controller (8), a second polarization-dependent isolator (9), a second polarization controller (10), a dispersion compensation fiber (11) and a single-mode fiber (14). The 2*2 output coupler (4) outputs a bidirectional mode-locked pulse. The first output end (12) of the 2*2 output coupler (4) is connected with the single-mode fiber (14) located outside a cavity and is used for the out-of-cavity time-domain compression of the output pulse to obtain a high-peak-power ultra-short pulse. The second output end (13) of the 2*2 output coupler (4) directly outputs a high-energy dissipative soliton resonance pulse. The system is low in cost and wide in application range, and can be used as a high-peak-power femtosecond pulse light source and a high-energy picosecond and nanosecond pulse light source, and can also be used as a seed source of a high-energy pulse amplifier.

Description

technical field [0001] The invention belongs to the technical field of lasers, and in particular 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. Because of its extremely narrow pulse width, high peak power, and high energy, ultrashort pulses are widely used in basic scientific research, high-speed optical communications, optical signal processing, micromachining, ultrafast laser spectroscopy, quantum coherence control, medical and Precision measurement and other fields. Specifically, high peak power ultrashort pulses can be used in laser micromachining, laser inertial confinement fusion and other fields; high energy ultrashort pulses can be used in optical fiber sensing, supercontinuum generation and other fields. Passive mode-locking technology is one of the main methods to obtain ultrashort pulses due to its advantages...

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Application Information

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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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