Multi-wavelength periodic oscillation controllable fiber laser
By designing a multi-wavelength periodic oscillation controllable fiber laser, the polarization controller regulates the dispersion and gain competition in the cavity is used to solve the problems of insufficient stability and difficulty in multi-wavelength mode-locking tuning, and the efficient multi-wavelength periodic oscillation mode-locking and tuning effects are achieved.
CN119627598APending Publication Date: 2025-03-14ZHEJIANG FORESTRY UNIVERSITY
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Patent Information
- Application Number
- CN202411728728.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-03-14
Abstract
The invention belongs to the technical field of passive mode-locking ultrafast fiber lasers, and discloses a multi-wavelength periodic oscillation controllable fiber laser. The optical fiber laser comprises a laser pumping source, a wavelength division multiplexer, an erbium-doped gain optical fiber, a polarization independent isolator, a polarization controller, an output coupler and a metal organic framework saturable absorber which are sequentially connected through single-mode optical fibers. The multi-wavelength periodic oscillation means that dual-wavelength and three-wavelength mode-locked pulses have motion states with fixed periods and amplitudes in a time domain. By controlling the polarization controller, dual-wavelength stable mode-locked pulse, dual-wavelength periodic oscillation pulse, three-wavelength periodic oscillation pulse and three-wavelength stable mode locking are realized, and the problem of accurate dynamic tuning of multi-wavelength mode-locked pulse is solved.
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