Fast wavelength locking method and system based on f-p etalon wavelength locker
A wavelength locking and fast locking technology, which is applied in the field of optical network communication, can solve the problems of shortening adjustment time, loss of laser output wavelength lock, affecting optical network communication performance, etc., and achieves the effect of improving communication performance and speed
Active Publication Date: 2022-03-11
STATE GRID INFORMATION & TELECOMM BRANCH +1
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The general wavelength locked loop can achieve wavelength locking, and the efficiency is higher than that of temperature compensation, but its adjustment time can be further shortened; at the same time, the PID algorithm in the general wavelength locked loop is simple, which may easily cause the output wavelength of the laser to lose lock. Affect the communication performance of the optical network
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
[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention. , not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0039] The invention proposes a fast wavelength locking loop based on the F-P etalon wavelength locker. The loop monitors the current signal of the photodiode output by the wavelength locker of the F-P etalon, and after calibration by the Proportion Integral Differential (PID) algorithm, the control quantity output by the PID is applied to the control of the laser. In the current, the fast locking of the output wa...
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 invention provides a fast wavelength locking method and system based on an F-P etalon wavelength locker, the method comprising: splitting the optical signal of the laser to be detected based on the F-P etalon wavelength locker to obtain reference Current signal and etalon current signal; and convert the reference current signal into a reference voltage signal, convert the etalon current signal into an etalon voltage signal; perform analog-to-digital conversion on the reference voltage signal to obtain a reference digital signal, and convert the etalon voltage signal Perform analog-to-digital conversion to obtain the digital signal of the etalon; obtain the ratio of the digital signal at the current moment according to the reference digital signal and the digital signal of the etalon; based on the proportional-integral-differential algorithm, generate the current The control amount of time is used to adjust the output wavelength of the laser to be detected according to the control amount. The invention improves the speed of wavelength locking and the communication performance of the optical network.
Description
technical field [0001] The invention relates to the technical field of optical network communication, in particular to a method and system for fast wavelength locking based on an F-P etalon wavelength locker. Background technique [0002] With the rapid development of all-optical networks, tunable semiconductor lasers are also widely used. In the process of fast wavelength switching of tunable semiconductor lasers, due to the sudden change of passive tuning junction current, the electrical power consumption of the laser will change, which will cause thermal jitter inside the laser, which will cause the output wavelength of the laser to drift and affect the wavelength of the optical signal. The transmission in routing causes crosstalk between channels. [0003] In order to solve the wavelength jitter in the wavelength tuning process, the wavelength can be locked through temperature compensation, but the existing temperature compensation takes a long time and the effect is po...
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): H04B10/50H04B10/572
CPCH04B10/503H04B10/572
Inventor 彭元龙李伯中孙雨潇钱升起陈芳田照宇邓春雪武宇李子凡翟欢张会彬杨辉喻鹏
Owner STATE GRID INFORMATION & TELECOMM BRANCH