Self-injection multi-mode tilted optical fiber grating external cavity picopulse laser

A tilted fiber grating, picosecond pulse technology, applied in the field of self-injection multi-mode tilted fiber grating external cavity picosecond pulse lasers, can solve the problems of difficult operation, increase system cost, etc., achieve easy manufacturing, timing jitter and frequency Small chirp, easy-to-operate effect

Inactive Publication Date: 2011-07-27
SHANGHAI UNIV
View PDF2 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] External-cavity frequency-selective devices for multi-wavelength output and wavelength-tuning self-injection systems usually have cascaded fiber Bragg gratings,

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-injection multi-mode tilted optical fiber grating external cavity picopulse laser
  • Self-injection multi-mode tilted optical fiber grating external cavity picopulse laser
  • Self-injection multi-mode tilted optical fiber grating external cavity picopulse laser

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] A preferred embodiment of the present invention is described as follows in conjunction with accompanying drawing:

[0027] see figure 1 , the self-injection multimode tilted fiber grating external cavity picosecond pulse laser includes a gain switch laser body (1), a polarization controller (2), a coupler (3) and an external cavity frequency selector (4), the polarization A controller (2), a coupler (3) and an external cavity frequency selector (4) are sequentially connected in series to the signal output end of the gain switch laser body (1) through an optical fiber.

[0028] Gain switch laser body (4) is composed of F-P semiconductor laser (5), temperature controller (6), semiconductor laser driving power supply (7), radio frequency signal generator (8), radio frequency signal amplifier (9) and bias device ( 10) Constructed gain-switched laser. The radio frequency signal generator (8) is connected to the F-P semiconductor laser (5) after passing through the radio fr...

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

No PUM Login to view more

Abstract

The invention relates to a self-injection multi-mode tilted optical fiber grating external cavity picopulse laser. The laser comprises a gain switch semiconductor laser body, a polarization controller, a coupler and an external cavity frequency selector, wherein the polarization controller, the coupler and the external cavity frequency selector are connected with the signal output end of the gain switch laser body in series in turn through optical fibers; the external cavity frequency selector consists of a tilted grating and a mode frequency scrambler, wherein the tilted grating is written in the multi-mode optical fiber; the mode frequency scrambler acts on the multi-mode optical fiber to make the tilted grating have different reflection wavelengths by generating microbend on the multi-mode optical fiber. By adjusting the temperature of a Fabry-Perot (F-P) semiconductor laser and the microbend degree of the multi-mode optical fiber caused by the mode frequency scrambler, multi-wavelength pulse output and wavelength tuning can be realized. The laser solves the problems such as high cost, complex structure and inconvenient operation of a common tunable multi-wavelength pulse laser, and is suitable to be used in the fields such as optical fiber communication, optical fiber sensing and the like.

Description

technical field [0001] The invention relates to a self-injection type multi-mode inclined fiber grating external cavity picosecond pulse laser, in particular to a picosecond pulse laser with multi-wavelength output and wavelength tunable. Background technique [0002] Multi-wavelength and wavelength-tunable short-pulse light sources have important applications in optical fiber communication systems and optical fiber sensing systems. In the field of optical communication, the combination of optical time division multiplexing (OTDM) technology and wavelength division multiplexing (WDM) can greatly increase the single-channel rate of the optical communication system and reduce the number of wavelength channels. The preferred option for communication. Therefore, the generation of high repetition rate ultrashort optical pulses, multi-wavelength and wavelength-tunable light sources is one of the key technologies in high-speed OTDM and WDM systems. And with the introduction of th...

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): H01S5/14H01S5/06
Inventor 刘云启蔡同健陈剑峰王廷云
Owner SHANGHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap