Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Radiation-proof erbium-doped photonic crystal fiber light source for high-precision fiber-optic gyroscope

A technology of photonic crystal fiber and fiber optic gyroscope, which is applied in the direction of lasers, phonon exciters, laser components, etc., and can solve problems such as unsuitable for space applications and damage

Pending Publication Date: 2021-09-10
瑞燃(上海)环境工程技术有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the method of thermal fading, it needs to be heated to a very high temperature (300°C) to produce an obvious fading effect, and such a high temperature will cause damage to other optical devices, so it is not suitable for space applications

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
  • Radiation-proof erbium-doped photonic crystal fiber light source for high-precision fiber-optic gyroscope
  • Radiation-proof erbium-doped photonic crystal fiber light source for high-precision fiber-optic gyroscope
  • Radiation-proof erbium-doped photonic crystal fiber light source for high-precision fiber-optic gyroscope

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] 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.

[0055] The radiation-resistant erbium-doped photonic crystal fiber light source of the present invention, as figure 1 As shown, it is a radiation-resistant erbium-doped photonic crystal fiber light source for a high-precision fiber optic gyroscope. It is characterized in that the fiber light source is a multi-pump dual-pass backward structure, and the fiber light source includes a 980nm laser 1, a 665nm laser 2, a first Wavelength division multiplexer 3, erbiu...

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
Outer diameteraaaaaaaaaa
The inside diameter ofaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides an anti-radiation erbium-doped photonic crystal fiber light source for a high-precision fiber-optic gyroscope. The fiber light source is of a multi-pumping double-pass backward structure and adopts a self-prepared erbium-doped photonic crystal fiber as a gain medium. A system light path comprises a 980nm laser, a 665nm laser, a first wavelength division multiplexer, an erbium-doped photonic crystal fiber, a second wavelength division multiplexer, a first spectral filter, a second spectral filter and an optical fiber isolator. According to the optical fiber light source disclosed by the invention, effective light fading is realized by simultaneously pumping special wavelength laser, so that the stability of the average wavelength and the output power of the erbium-doped optical fiber light source in a space irradiation environment is ensured; meanwhile, a flat spectrum filter is adopted to filter and shape an output spectrum, so that the light source has a large bandwidth, the light source has a relatively low relative intensity noise characteristic, and the light source is particularly suitable for space application of a high-precision fiber-optic gyroscope.

Description

technical field [0001] The invention relates to a broadband optical fiber light source, in particular to an anti-radiation erbium-doped photonic crystal optical fiber light source for space high-precision optical fiber gyro. Background technique [0002] As a gain and transmission medium of active optical fiber devices, Erbium-doped optical fiber has been widely used in land and submarine long-line or highly distributed communication systems. With the continuous development of space technology, the application potential of active devices based on erbium-doped fiber in space has attracted more and more attention. But the special environment of space full of cosmic rays must be paid attention to. Studies have shown that when special technology is used, pump lasers, ordinary optical fiber devices and device pigtails already have good radiation resistance, while erbium-doped optical fibers are used as gain and transmission media for active optical fiber devices. Different, in ...

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
IPC IPC(8): H01S3/067H01S3/13H01S3/131H01S3/139
CPCH01S3/06708H01S3/06729H01S3/13H01S3/1312H01S3/139H01S3/1398
Inventor 王成林
Owner 瑞燃(上海)环境工程技术有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products