Unlock instant, AI-driven research and patent intelligence for your innovation.

Self-sweeping fiber laser based on bidirectional ring cavity

A fiber laser and ring cavity technology, used in lasers, laser parts, phonon exciters, etc., can solve the problems of large optical loss and complex structure, and achieve the effect of simplifying the structure, improving output efficiency and reducing the use of devices

Active Publication Date: 2021-01-01
NORTHWEST UNIV
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the wavelength self-sweeping fiber laser in the prior art needs the synergistic effect of gain medium, fiber grating and wavelength tunable filter, etc., the structure is complex, and the optical loss is large

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-sweeping fiber laser based on bidirectional ring cavity
  • Self-sweeping fiber laser based on bidirectional ring cavity
  • Self-sweeping fiber laser based on bidirectional ring cavity

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] 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 making creative efforts belong to the protection scope of the present invention.

[0025] The purpose of the present invention is to provide a self-sweeping fiber laser based on a bidirectional ring cavity, which adopts a ring resonator structure but does not control the direction of laser light in the resonator, so as to realize a bidirectional ring resonator structure. The doped fiber is used to realize the combined functions of the gain medium, the fiber grating and the wavelength tunable filter in the existing wavelength self-sweeping fib...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a self-scanning fiber laser based on a bidirectional ring cavity, which adopts a bidirectional ring cavity structure. The components include: a polarization-maintaining pump source, a polarization-maintaining wavelength division multiplexer, a doped optical fiber and an output coupler. Single-mode optical fiber connections form a bidirectional annular cavity. The bidirectional operating laser shares a section of doped optical fiber, so that the doped optical fiber replaces the functions of the original gain medium, fiber grating and wavelength tunable filter in the ring cavity, achieving simple and effective self-scanning laser output. At the same time, the frequency sweep range and frequency sweep speed of the output laser can be adjusted by adjusting the power of the pump source, achieving self-sweeping frequency laser output with a large tuning range.

Description

technical field [0001] The invention relates to the fields of fiber lasers and nonlinear optics, in particular to a self-sweeping frequency laser based on a bidirectional ring cavity. Background technique [0002] The self-induced wavelength linear scanning effect in fiber lasers is regarded as one of the research directions of fundamental physics and applied physics. Fiber lasers based on this effect exhibit a spontaneous, stable, and periodic wavelength tuning process in the spectrum. The wavelength self-sweeping fiber laser is usually mainly composed of a gain medium, a fiber grating, and a wavelength tunable filter. The three cooperate to realize the wavelength self-sweeping output. Simple. The laser has been applied in the fields of spectral detection, dense wavelength division multiplexing and so on. [0003] However, the wavelength self-sweeping fiber laser in the prior art needs the synergistic effect of gain medium, fiber grating, wavelength tunable filter and ot...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/067H01S3/094H01S3/102
CPCH01S3/06708H01S3/06716H01S3/06791H01S3/094011H01S3/1022
Inventor 陆宝乐陈浩伟王凯乐白晋涛
Owner NORTHWEST UNIV