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

Signal optical interruption detection device, optical amplifier, optical wavelength division multiplexing transmission device and optical wavelength division multiplexing transmission system

An optical amplifier and optical detector technology, applied in electromagnetic wave transmission systems, transmission systems, lasers, etc., can solve problems such as complex structures and achieve high reliability.

Active Publication Date: 2021-10-26
MITSUBISHI ELECTRIC CORP
View PDF17 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, since the above-mentioned prior art is a method of detecting the signal light interruption state for the main signal light component of a single wavelength, in order to be applicable to the transmission of wavelength division multiplexed light including the main signal light component of any wavelength The optical fiber communication system needs to use a frequency variable filter, and there is a problem that the structure becomes complicated

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
  • Signal optical interruption detection device, optical amplifier, optical wavelength division multiplexing transmission device and optical wavelength division multiplexing transmission system
  • Signal optical interruption detection device, optical amplifier, optical wavelength division multiplexing transmission device and optical wavelength division multiplexing transmission system
  • Signal optical interruption detection device, optical amplifier, optical wavelength division multiplexing transmission device and optical wavelength division multiplexing transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0033] figure 1 It is a diagram schematically showing the configuration of an optical wavelength division multiplexing transmission device and an optical wavelength division multiplexing transmission system according to Embodiment 1 of the present invention. The optical wavelength division multiplexing transmission system according to Embodiment 1 is an optical fiber communication system that transmits signal light via an optical fiber transmission line. The optical wavelength division multiplexing transmission system related to Embodiment 1 includes: an optical wavelength division multiplexing transmission device 10 as a first optical wavelength division multiplexing transmission device; The optical wavelength division multiplexing transmission device 20 as the second optical wavelength division multiplexing transmission device is connected to the transmission device 10 . Generally, the optical wavelength division multiplexing transmission device 10 and the optical wavelengt...

Embodiment approach 2

[0054] In Embodiment 1, the case where signal light having a main signal light component of a single wavelength is transmitted is described. In Embodiment 2, an optical wavelength division multiplexing transmission system (optical fiber communication system) that multiplexes light of a plurality of wavelengths and has a multi-stage repeater will be described.

[0055] Image 6 It is a diagram schematically showing the configuration of an optical wavelength division multiplexing transmission device and an optical wavelength division multiplexing transmission system according to Embodiment 2 of the present invention. exist Image 6 in, for with figure 1 The structural elements shown are the same as or corresponding to the structural elements, marked with figure 1 The numbers shown are the same as those shown. The optical wavelength division multiplexing transmission system according to Embodiment 2 is an optical fiber communication system that transmits wavelength division m...

Embodiment approach 3

[0073] In Embodiments 1 and 2, the case where the optical wavelength division multiplexing transmission device 20 or 80 on the receiving side includes the Raman amplifier 33 and the signal light interruption detection device 35 has been described. In Embodiment 3, an optical amplifier 39 (for example, an optical relay device including an optical amplification unit) provided with a Raman amplifier 33 and a signal light interruption detection device 35 in the middle of an optical fiber transmission line 31 will be described.

[0074] Figure 11 It is a diagram schematically showing the configuration of the optical amplifier 39 according to Embodiment 3 of the present invention. The optical amplifier 39 is a part of, for example, an optical relay device independent of the optical wavelength division multiplexing transmission device 20 or 80 . exist Figure 11 in, for with figure 2 The structural elements shown are the same as or corresponding to the structural elements, marke...

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 signal light interruption detection device (35) includes: demultiplexing the wavelength division multiplexed light into the light of the first frequency range corresponding to the first frequency grid including frequencies at equal frequency intervals capable of arranging the main signal light component, And the optical interleaver (352) of the light of the second frequency range corresponding to the second frequency grid corresponding to the half cycle of the equal frequency interval with respect to the first frequency grid; detecting the light of the first frequency range The total power is the first light detector (353) of the first light power; the second light detector (354) that detects the total power of the light in the second frequency range, that is the second light power; and the output is based on the light detected by the first light A judging unit (355) for notifying a signal of a difference between the first optical power detected by the photodetector (353) and the second optical power detected by the second photodetector (354).

Description

technical field [0001] The invention relates to a signal light interruption detection device for detecting signal light interruption state in an optical fiber transmission path, an optical amplifier including a signal light interruption detection device, an optical wavelength division multiplexing transmission device including a signal light interruption detection device, and an optical wavelength division multiplexing The optical wavelength division multiplexing transmission system of the transmission device. Background technique [0002] In recent years, in order to cope with the increase in communication traffic, in optical fiber communication systems such as submarine cable systems and land-based WDM (Wavelength Division Multiplexing: wavelength division multiplexing) systems, the development of signal light that can be transmitted through a single optical fiber has been carried out. Wavelength division multiplexing that increases the number (the number of multiplexed si...

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): H04B10/079H04B10/294
CPCH04B10/079H04B10/294H01S3/302H01S3/06754H01S3/10015H01S2301/02H04B10/07953H04B10/07955H04B10/296
Inventor 松本金浩十仓俊之近森峻高田贤吾
Owner MITSUBISHI ELECTRIC CORP