Pulse separation laser oscillator

A laser oscillator and pulse separation technology, which is applied in the direction of lasers, laser parts, phonon exciters, etc., can solve the problems that the output power of the laser oscillator cannot be high, the SEAM power threshold is low, and the thermal conductivity is not high. It is conducive to self-starting, improving the overall stability of the optical path, and the coupling efficiency will not be reduced

Active Publication Date: 2021-02-02
合肥脉锐光电技术有限公司
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Problems solved by technology

[0005] However, the current oscillators that use SESAM as a mode-locking element are due to the material of SESAM itself (the thermal conductivity of the semiconductor compound material used in SESAM is generally not high, and a large amount of heat will accumulate during long-term work, which will cause the components to age) and the power threshold of SEAM itself is relatively low. The low output power of the laser oscillator cannot output high power

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  • Pulse separation laser oscillator

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] In describing the present invention, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surrounding" etc. Indicating orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a sp...

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Abstract

The invention discloses a pulse separation laser oscillator. According to the pulse separation laser oscillator provided by the invention, the left end of an optical path adopts a bi-pass amplification structure formed by a combination of an erbium-ytterbium co-doped optical fiber and a Faraday rotator mirror, and the right end of the optical path adopts an SESAM optical path with a full polarization maintaining structure, so the birefringence effect of optical fiber transmission and amplification is counteracted; and a spatial light path part in the oscillator adopts a full-curing structure,so the stability and the efficiency of light transmission are ensured. According to the invention, pulsed light is effectively amplified, the requirement of a high-power laser for the seed light is met, the seed light with various repetition frequencies can be generated by changing the length of a resonant cavity of the pulsed light, and the pulsed light amplifying device has a great application value in laser building and repetition frequency locking.

Description

technical field [0001] The invention belongs to the technical field of laser oscillators, in particular to a pulse separation laser oscillator. Background technique [0002] In recent years, the rapid development of high-end manufacturing and precision machining. Fiber lasers, high-energy ultrashort pulses with time widths on the order of picoseconds or femtoseconds are an important tool to realize the leapfrog development of precision manufacturing and processing precision from micron to nanometer levels, and ultrashort pulse fiber lasers with high stability Oscillators have always been the core technology in the development of the laser field. [0003] The inherent stability of the fiber resonator ensures the stable operation of the fiber laser. In addition, the wide transition spectrum of doped rare earth elements enables fiber lasers to obtain pulses with a width of only a few femtoseconds. Common passive mode-locking methods for fiber lasers include nonlinear polariza...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/10H01S3/102H01S3/098H01S3/094
CPCH01S3/06716H01S3/0941H01S3/10061H01S3/1024H01S3/1115
Inventor 王云峰陈国梁王文洲
Owner 合肥脉锐光电技术有限公司
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