An erbium-doped fiber laser and an adjustment method thereof

An erbium-doped fiber and laser technology, used in lasers, laser parts, phonon exciters, etc., can solve the problem of unachieved mode-locked pulses with wavelengths greater than 1610nm

Pending Publication Date: 2018-12-18
昆山瞬刻激光科技有限公司
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  • Abstract
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Problems solved by technology

[0004] The invention provides an erbium-doped fiber laser and its adjustment method, which solves the problem

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  • An erbium-doped fiber laser and an adjustment method thereof
  • An erbium-doped fiber laser and an adjustment method thereof
  • An erbium-doped fiber laser and an adjustment method thereof

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0022] Such as figure 1 As shown, an erbium-doped fiber laser includes a wavelength division multiplexing coupler WDM, an erbium-doped gain fiber EDF, a first polarization controller PC1, an isolator Isolator, a polarizer P, an output coupler output, and a second polarization control Device PC2 and pump source LD.

[0023] The output end of the pump source LD is connected to the input end of the wavelength division multiplexing coupler WDM, the wavelength division multiplexing coupler WDM, the erbium-doped gain fiber EDF, the first polarization controller PC1, the isolator Isolator, the polarizer P, the output The output of the coupler and the second polarization controller PC2 are sequentiall...

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Abstract

The invention discloses an erbium-doped fiber laser, comprising a wavelength division multiplexing coupler, an erbium-doped gain optical fiber, a first polarization controller, an isolator, a polarizer, an output coupler, a second polarization controller and a pumping source. The output end of the pumping source is connected with the input end of the wavelength division multiplexing coupler, the wavelength division multiplexing coupler, the erbium-doped gain fiber, the first polarization controller, the isolator, the polarizer, the output coupler and the second polarization controller, which are sequentially connected into an optical fiber ring cavity through a single-mode optical fiber. At the same time, the adjusting method of the erbium doped fiber laser is also disclosed. The inventioncan realize the pulse output with the center wavelength greater than 1610 nm.

Description

technical field [0001] The invention relates to an erbium-doped fiber laser and an adjustment method, in particular to an erbium-doped fiber laser with a center wavelength greater than 1610nm and an adjustment method, belonging to the technical field of optical fiber communication. Background technique [0002] The L-band refers to the laser band with a wavelength from 1565 nm to 1625 nm. Because glass optical fibers have very low loss in this band, they are widely used in optical fiber communication systems. Especially ultrafast femtosecond lasers, due to their extremely high time resolution, have a wide range of application requirements in large-capacity and high-speed optical information transmission, biomedical detection, and scientific research applications. [0003] Erbium-doped fiber lasers can work in the L-band, but due to the long-wavelength attenuation of the gain, Erbium-doped fiber lasers generally work in the 1550-1580nm band, and the upper limit of the laser w...

Claims

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Application Information

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IPC IPC(8): H01S3/067H01S3/10H01S3/11
CPCH01S3/06725H01S3/10061H01S3/1109
Inventor 赵鹭明
Owner 昆山瞬刻激光科技有限公司
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