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

Method and device for controlling light amplification safely

A technology of safety control and optical amplification, applied in laser monitoring devices, optics, lasers, etc., can solve the problems of no safety control, no external communication and control means, no reflected light detection, etc., to achieve multi-safety Guaranteed effect

Inactive Publication Date: 2007-05-02
ZTE CORP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is different from the substantive problem solved by the device of the present invention. It does not explain the existence of reflected light detection, there is no method for safety control based on the reflection coefficient detection results, and there is no external communication and control means in the present invention.

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
  • Method and device for controlling light amplification safely
  • Method and device for controlling light amplification safely
  • Method and device for controlling light amplification safely

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The following describes in detail the implementation of each component of the present invention, the optical and electrical connections between the various components, the control method, the software working method, and the communication function realized by the device of the present invention through the device bus.

[0030] (1) Hardware composition

[0031] In Fig. 1, the implementation of safety control of RAMAN amplifier by reflection coefficient detection is given.

[0032] Example. in

[0033] G1 is an optical device group that generates pump laser light and outputs strong optical power to the outside of the device. In G1

[0034] P1 is a general pump laser group, consisting of one or more lasers, all N lasers are connected to the control circuit C2 through electrical interfaces JP1, JP2, . . . , JPN. P1 can output laser radiation that meets the working requirements of the equipment during normal operation.

[0035] I is an isolator, which ensures the one-way...

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

A method for safety control of optical amplification comprising: detecting output power and reflection power of an optical amplifier, and calculating a reflection coefficient and reflection power; determining if the reflection coefficient and the reflection power exceed a given threshold, if yes, performing safety control of the optical amplifier and adjusting the output power of the optical amplifier under a safety value and keeping on power detection; if no, determining if an optical power adjustment is necessary, and adjusting the output power into a configuration value when necessary, or else keeping on power detection. Comparing with the prior arts, the present invention makes progress of providing a safety protection method for apparatus with high light output, actualizes the effect of automatically controlling power of the amplifier (or other apparatus with high light output) by detecting the output reflection coefficient, so as to provide the apparatus or staffs with more safety protection.

Description

technical field [0001] The invention relates to a safety control method and device for optical amplification, in particular to an optical amplification device in an optical communication system. Background technique [0002] In dense wavelength division multiplexing systems, optical amplifiers are used in order to extend the transmission distance. One method is to feed high-power pump light into the optical fiber. Due to the stimulated RAMAN scattering effect (SRS effect) in the optical fiber, the energy of the pump light will be transferred to the signal light longer than its wavelength to realize the amplification of the signal light. . Another method is to use a fiber amplifier (such as an erbium-doped fiber amplifier), which is to feed a certain power of pump light into a special fiber. Due to the energy level transition generated by the excitation of particles in the fiber, the energy of the pump light is transferred to In the signal light with a long wavelength, the ...

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): G02F1/39H01S3/13H01S3/131H01S3/30H04B10/071H04B10/077H04B10/079
CPCH04B10/071H01S3/1312H04B10/077H04B10/07955H01S3/1301H01S3/302H01S3/0014H01S3/06754H01S3/13013H01S3/1305
Inventor 王加莹
Owner ZTE CORP