Method for measuring signal optical information noise ratio in light wave length, power monitor
A technology for measuring signal and optical signal-to-noise ratio, applied in the field of measuring signal-to-signal-to-noise ratio, can solve the problems of high cost and difficult production of optical performance monitors, and achieve the effect of reducing technical and technological difficulty and cost
Inactive Publication Date: 2004-11-24
GUANGXUN SCI & TECH WUHAN
View PDF0 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, high-performance optical performance monitors (OPM) either use expensive 256 or 512-channel array detectors, or use extremely expensive high-performance tuning filters, which also require high technology for supporting peripheral equipment. Both make high-performance optical performance monitors extremely expensive and difficult to manufacture
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] In order to realize the purpose of the present invention, we provide a method and a device for realizing the purpose. It includes: a 1×N optical switch, whose N output ports are connected to the N input ports of the dispersion part; a dispersion part with N input ports, and the adjacent input ports of the dispersion part have a certain angle, different The input ports correspond to different incident angles, and different incident angles cause the output spectrum to shift in space; after passing through the light-splitting element group in the dispersion part, the spatially distributed spectrum of the optical signal shifts a certain distance in turn on the detection plane. The N input ports are sequentially selected through the optical switch, and optical signals are input from different input ports. In this way, the signal power and noise power of the optical signal in the system can be measured separately under different input configurations of the optical signal. A d...
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
Login to View More Abstract
The present invention provides method of measuring the signal light S / N ratio for light wavelength and power monitor. The measuring apparatus consists of three parts: 1xN light switch for providing multiplex selection function, color dispersion part with N inputs in certain angle, and data processing part. The light switch has its N outputs connected to the N inputs of the color dispersion part separately and gates its N outputs successively to transmit the light signal to the N inputs of the color dispersion part; the color dispersion part completes the spatial separation of light signals of different wavelengths and focuses the light signals of different wavelengths to different positions of detector plane and its N inputs completes the successive shift of the input light signal spectrum in the detector plane; and the data processing part is used to in measuring, analyzing and processing data, and outputting the wavelength, power and S / N data of different channels.
Description
technical field [0001] The invention relates to a method for measuring signal optical signal-to-noise ratio in an optical wavelength and power monitor, in particular to a method for measuring signal optical signal-to-noise ratio (OSNR) in an optical wavelength and power monitor based on a grating and an array detector. technical background [0002] High-speed and large-capacity DWDM systems have been widely used. In order to ensure the stable and reliable operation of the system, it is necessary to use an optical performance analyzer in the system to monitor the basic performance of the optical signal in the system in real time at the optical transmission layer, including the wavelength of the optical signal. , power and optical signal-to-noise ratio. [0003] There are currently two types of optical performance analyzers that differ in performance and price. One can measure the wavelength, power and optical signal-to-noise ratio of optical signals, but the price is very hi...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02H04B10/07
Inventor 陈晓虎胡强高张晓蓉彭定敏喻杰奎何俊
Owner GUANGXUN SCI & TECH WUHAN