Optical Frequency Monitoring Device
A monitoring device and optical frequency technology, which is applied in the field of optical communication, can solve the problems of increasing the complexity of the packaging process, increasing the difficulty and cost of optical frequency monitoring devices, and achieving the effect of reducing difficulty, cost and complexity
Active Publication Date: 2016-08-10
HUAWEI TECH CO LTD
View PDF9 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, FP Ethernet needs to collimate the optical signal. Therefore, a lens group is required to complete it, and an additional packaging process is required, which increases the complexity of the packaging process and also increases the difficulty and cost of making an optical frequency monitoring device.
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 1
[0033] Below with figure 1 As an example, the optical frequency monitoring device provided by the embodiment of the present invention is described in detail, figure 1 This is a schematic structural diagram of an optical frequency monitoring device provided in an embodiment of the present invention. like figure 1 As shown, the optical frequency monitoring device includes: a coupler 110 , a first waveguide 120 , a second waveguide 130 , a diffractive region 140 , a light detector 150 with a clear aperture, a backlight detector array 160 and a monitoring module 170 .
[0034] exist image 3 , the coupler 110 is configured to receive a first optical signal, divide the first optical signal into a second optical signal and a third optical signal in equal proportions, and combine the second optical signal and the third optical signal Optical signals are transmitted through the first waveguide and the second waveguide, respectively, to the diffractive region.
[0035] Specifically...
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 relates to an optical frequency monitoring device, comprising: a coupler, which is used to combine and divide received optical signals into a first optical signal, and divide the first optical signal into a second optical signal and a third optical signal in equal proportions. signal, and transmit the second optical signal and the third optical signal through the first waveguide and the second wave to the diffraction area respectively; the diffraction area is used to diffract the second optical signal and the third optical signal to generate spatial interference fringes A plurality of fourth light signals; a light detector, used to obtain the first light frequency value of the fourth light signal, and generate a first photocurrent signal according to the first light frequency value; a backlight detector array, used to obtain the received The second optical frequency value of the back-facing optical signal, and generate a second photocurrent signal according to the second optical frequency value; the monitoring module is used to generate a frequency monitoring signal according to the first photocurrent signal and the second photocurrent signal.
Description
technical field [0001] The invention relates to the field of optical communication, in particular to an optical frequency monitoring device. Background technique [0002] The 40G Time-Wavelength Division Multiplexing (TWDM for short) passive optical network (Passive Optical Network, PON for short) has been preliminarily determined by the standards organization as the standard framework of the next-generation passive optical network. In the 40G TWDM PON, there is a 4X10Gbps optical line terminal (Optical Line Terminal, OLT for short) optical transmitting module. The module requires 4 optical transmitters with independent frequencies to work independently, with a frequency interval of 100 GHz. [0003] According to the regulations of the International Telecommunication Union, when an optical transmitter module with a frequency interval of 100GHz transmits an optical signal, the stability of the transmitted optical frequency must be controlled within ±10GHz. Usually, the OLT ...
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 Patents(China)
IPC IPC(8): H04B10/07
CPCH04J14/02G02B6/29385G02B6/4215H04B10/07957
Inventor 王磊周小平
Owner HUAWEI TECH CO LTD