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Self-starting Mmyshev optical fiber oscillation device based on spectrum modulation

A self-starting, spectral technology, applied in the structure/shape of optical resonators, lasers, laser parts, etc., can solve problems such as lowering the mode-locking threshold, unable to achieve self-starting, high pulse energy, etc.

Pending Publication Date: 2022-07-01
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] Mamyshev oscillators are usually unable to achieve self-starting. It is necessary to inject seed pulses or perform external electrical modulation to trigger the mode-locking threshold and form mode-locking pulses, which is inconvenient to use. To realize the self-starting operation of Mamyshev oscillators, it is necessary to introduce The auxiliary saturable absorption mechanism reduces the mode-locking threshold, which increases the complexity of the laser structure; the self-starting operation can be realized by reducing the wavelength difference between the two filters in the cavity of the Mamyshev oscillator, but the laser cannot obtain higher pulse energy

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  • Self-starting Mmyshev optical fiber oscillation device based on spectrum modulation

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[0044] The present disclosure provides a self-starting Mamyshev fiber oscillating device based on spectral modulation, the self-starting Mamyshev fiber oscillating device can effectively improve the self-starting performance of the Mamyshev oscillator, does not increase the complexity of the laser structure, and facilitates integration design while maintaining high output energy.

[0045] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the present disclosure will be further described in detail below with reference to the specific embodiments and the accompanying drawings.

[0046] In the embodiment of the present disclosure, a self-starting Mamyshev optical fiber oscillation device based on spectral modulation is provided, such as figure 1 As shown, the self-starting Mamyshev fiber oscillating device includes: two spectral filters, respectively a first spectral filter 7 and a second spectral filter 14, the first spectra...

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Abstract

The invention provides a self-starting Mmyshev optical fiber laser oscillator based on spectrum modulation, which comprises two spectrum filters, two pumping sources, two wavelength division multiplexers, two optical fiber gain stretchers, two output couplers and two optical isolators, comprising a gain optical fiber and a passive optical fiber, the self-starting Mmyshev optical fiber oscillation device can effectively improve the self-starting performance of a Mmyshev oscillator, the complexity of a laser structure is not increased, integrated design is facilitated, and meanwhile high output energy is maintained.

Description

technical field [0001] The present disclosure relates to the technical field of fiber lasers, and in particular, to a self-starting Mamyshev fiber oscillation device based on spectral modulation. Background technique [0002] Compared with traditional solid-state mode-locked lasers, fiber mode-locked lasers have the advantages of high gain, simple structure, good beam quality, and good stability of ring mirrors. However, due to the pulse distortion caused by the nonlinear effect of the fiber, the output pulse energy of the fiber mode-locked laser is much lower than that of the solid-state mode-locked laser. The Mamyshev oscillator based on pulse re-amplification and pulse reshaping can increase the pulse energy directly output from the fiber mode-locked laser to the order of μJ, the pulse width after de-chirping is 41 fs, and the corresponding peak power is 13 MW. This result is comparable to that of solid-state mode-locked lasers. [0003] However, the Mamyshev oscillator...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/08H01S3/00
CPCH01S3/06708H01S3/08027H01S3/0064
Inventor 石俊凯李冠楠姜行健陈晓梅高超刘立拓董登峰周维虎
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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