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

Optical fiber amplifying system and optical fiber amplifying method

A technology of optical fiber amplification and optical fiber amplifier, which is applied in the laser field, can solve the problems of fiber laser amplifier relaxation oscillation, SBS nonlinear effect, ultra-high peak power pulse, etc., and achieve the suppression of SBS nonlinear effect, easy full-fiber conversion, and guaranteed The effect of safe and stable work

Inactive Publication Date: 2012-08-15
TSINGHUA UNIV
View PDF2 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially to solve the problem that the existing fiber laser amplifier produces relaxation oscillation and SBS nonlinear effect during the amplification process, which leads to the problem of ultra-high peak power pulse

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
  • Optical fiber amplifying system and optical fiber amplifying method
  • Optical fiber amplifying system and optical fiber amplifying method
  • Optical fiber amplifying system and optical fiber amplifying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Embodiment 1: All-fiber superluminescent light-emitting diode direct fiber amplification

[0053] Figure 4 Shown is a schematic structural diagram of an optical fiber amplification system according to an embodiment of the present invention. Such as Figure 4 As shown, the output mode of the superluminescent light-emitting diode 100 is a single-mode fiber output, and the single-mode fiber is directly fused to the input end of the isolator 300 , and the output end of the isolator 300 is directly fused to the input fiber of the fiber amplifier 400 . This embodiment has no filter, ie no manipulation of the spectrum.

Embodiment 2

[0054] Embodiment 2: All-fiber superluminescent light-emitting diode spectrum control polarization fiber amplification

[0055] Figure 5 It is a schematic structural diagram of an optical fiber amplification system according to an embodiment of the present invention. Such as Figure 5 As shown, the output mode of the superluminescent light-emitting diode 100 is a polarization-maintaining fiber output, and the polarization-maintaining fiber is directly fused to the input end of the filter 600, and the output end of the filter 600 is directly fused to the input end of the isolator 300, and the isolator The output end of 300 is fused with the input end of polarization maintaining gain fiber of optical fiber amplifier 400 . In this embodiment, a required output spectrum is selected for amplified output by setting a pass filter.

Embodiment 3

[0056] Embodiment 3: All-fiber superluminescent light-emitting diode multi-stage fiber amplification

[0057] Image 6 It is a schematic structural diagram of an optical fiber amplification system according to an embodiment of the present invention. Such as Image 6 As shown, the output mode of the superluminescent light-emitting diode 100 is a single-mode optical fiber output, and the single-mode optical fiber is directly fused to the input end of the filter 600, and the output end of the filter 600 is directly fused to the input end of the isolator 300, and the optical fiber amplifier 400 It includes a fiber pre-amplification stage 402 and a fiber main amplification stage 404. The output end of the isolator 300 is fused with the input fiber of the fiber pre-amplification stage 402, and the fiber optic main amplification stage 404 is fused at the rear end of the fiber pre-amplification stage 402.

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 an optical fiber amplifying system and an optical fiber amplifying method. The system comprises a superradiance light emitting diode (LED), a coupler, an isolator and an optical fiber amplifier; the superradiance LED is used for outputting laser, the coupler is connected with an output end of the superradiance LED and is used for coupling the laser to the isolator; the isolator is connected between the coupler and the optical fiber amplifier and is used for preventing the laser that enters the optical fiber amplifier from feeding back to enter the superradiance LED; and the optical fiber amplifier is used for amplifying the laser. According to the invention, the superradiance LED is used as a seed source so as to effectively restrain relaxation oscillation on one hand and effectively restrain SBS (stimulated brillouin scattering) nonlinear effect on the other hand due to wider output light spectrum of the superradiance LED, so that the optical fiber amplifier can be ensured to work safely and stably.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to an optical fiber amplification system and an optical fiber amplification method thereof. Background technique [0002] Fiber lasers have attracted much attention due to their excellent beam quality, high power and power density, simple thermal control management, high stability and reliability, and are widely used in many fields. In practical applications, fiber lasers require both continuous long-term output and short-pulse modulated output. However, the existing fiber laser usually adopts the master control oscillation amplification method to obtain high power output, and the master control oscillation source generally adopts semiconductor laser or fiber laser seed. [0003] If a semiconductor laser is used as the seed source, the semiconductor laser can be directly modulated to drive the current to form a pulsed laser output, and then the pulsed laser can be amplified. Accord...

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 Applications(China)
IPC IPC(8): H01S3/067H01S3/0933G02F1/39
Inventor 巩马理张海涛肖起榕闫平
Owner TSINGHUA UNIV
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com