A Pulse Splitter Laser Oscillator

A laser oscillator, pulse separation technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problems of low thermal conductivity, component aging, low SEAM power threshold, etc., to avoid loss of lock phenomenon, improve Stability and coupling efficiency are not reduced

Active Publication Date: 2021-12-07
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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  • A Pulse Splitter 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. The left end of the optical path adopts a double-pass amplification structure combining an erbium-ytterbium co-doped optical fiber and a Faraday rotating mirror, and the right end adopts a SESAM optical path with a full polarization-maintaining structure, which offsets the effects of optical fiber transmission and amplification. Due to the birefringence effect, the space optical path in the oscillator adopts a fully solidified structure to ensure the stability and efficiency of light transmission. It effectively realizes the amplification of pulsed light and meets the requirements of high-power lasers for its seed light. By changing the length of its resonant cavity, it can also generate seed light with various repetition frequencies. In laser construction, repetition frequency locking has many great advantages. Value.

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 Patents(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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