Field control wavelength interval adjustable multi-wavelength ultrafast fiber laser

A technology of fiber laser and wavelength spacing, which is applied in the field of lasers, can solve the problems of slow speed and low precision, and achieve the effects of improving performance, high tuning speed and precision, and ensuring adjustment precision

Active Publication Date: 2017-07-14
CHONGQING UNIV
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  • Application Information

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Problems solved by technology

[0003] The invention provides a multi-wavelength ultrafast fiber laser with field-controlled wavelength interval adjustment, in order to solve the problems of low precision and slow speed when the current multi-wavelength fiber laser adopts a mechanical tuning method for wavelength interval tuning.

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  • Field control wavelength interval adjustable multi-wavelength ultrafast fiber laser
  • Field control wavelength interval adjustable multi-wavelength ultrafast fiber laser
  • Field control wavelength interval adjustable multi-wavelength ultrafast fiber laser

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the following describes the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings For further detailed explanation.

[0024] In the description of the present invention, unless otherwise specified and limited, it should be noted that the term "connection" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be Directly connected or indirectly connected through an intermediary, those skilled in the art can understand the specific meanings of the above terms according to specific situations.

[0025] see figure 1 , is a ...

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Abstract

The invention provides a field control wavelength interval adjustable multi-wavelength ultrafast fiber laser. The output end of the laser is connected to the first input end of a first wavelength division multiplexer, the output end of the first wavelength division multiplexer is connected to the input end of a second coupler, the first output end of the second coupler is connected to the first input end of a third coupler through a first optical fiber, the second output end of the second coupler is connected to the second input end of the third coupler through an evanescent field fiber wrapped with a graphene film, the output end of the third coupler is connected to the input end of the first coupler, the first output end of the first coupler is connected to the second input end of the first wavelength division multiplexer, a field control signal is applied to the graphene film and the optical signal and/or the field control signal input to the evanescent field fiber can be adjusted, and the interval of the wavelength output from the second output end of the first coupler can be adjusted. According to the invention, the wavelength interval adjustment rate and accuracy can be improved.

Description

technical field [0001] The invention belongs to the field of lasers, and in particular relates to a multi-wavelength ultrafast fiber laser with adjustable field-controlled wavelength intervals. Background technique [0002] Multi-wavelength fiber lasers have the advantages of simple structure, good heat dissipation, and high efficiency, and play an important role in the fields of dense wavelength division multiplexing, optical fiber sensor multiplexing, terahertz sources, and lidar microwave sources. At present, mechanical tuning is usually used to tune the wavelength interval output by multi-wavelength fiber lasers. The disadvantage of mechanical tuning is that the tuning accuracy is low and the speed is slow. Contents of the invention [0003] The invention provides a multi-wavelength ultrafast optical fiber laser with field-controlled wavelength interval adjustment to solve the problems of low precision and slow speed when the current multi-wavelength optical fiber lase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/10
Inventor 高磊朱涛刘泽吴桐
Owner CHONGQING UNIV
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