Laser driver temperature compensation circuit, laser and optical communication equipment
A temperature compensation circuit and laser driver technology, applied in the field of optical communication, can solve the problem that the performance of the laser driver is easily affected by temperature, and achieve the effect of avoiding the effect of temperature
Active Publication Date: 2021-05-11
深圳市利拓光电有限公司 +1
View PDF12 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The main purpose of the present invention is to provide a laser driver temperature compensation circuit, laser and optical communication equipment, aiming to solve the technical problem that the performance of the laser driver is easily affected by temperature in the prior art
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
[0034] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positi...
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 discloses a laser driver temperature compensation circuit, a laser and optical communication equipment, and relates to the technical field of optical communication. The laser driver temperature compensation circuit comprises a temperature detection circuit, a modulation circuit and a laser driving circuit. The temperature detection circuit is used for detecting the temperature of the laser, obtaining a temperature signal and transmitting the temperature signal to the modulation circuit; the modulation circuit is used for generating modulation current according to the temperature signal and transmitting the modulation current to the laser driving circuit; and the laser driving circuit is used for generating laser according to the modulation current. The size of the modulation current is adjusted according to the real-time temperature of the laser, so that temperature compensation of the modulation current is realized, and the performance of the laser driver is prevented from being influenced by the temperature.
Description
technical field [0001] The invention relates to the technical field of optical communication, in particular to a laser driver temperature compensation circuit, a laser and optical communication equipment. Background technique [0002] In an optical communication system, a laser driver (LDD, Laser Diode Driver) and a semiconductor laser are important components of an optical transmitter. Semiconductor lasers are sensitive to temperature, and their output optical power varies greatly with temperature. In view of this characteristic of the semiconductor laser, the laser driver provides the required modulation current for the semiconductor laser, and the modulation current includes modulation current and bias current. [0003] Usually, in order to eliminate the influence of temperature changes on the characteristics of semiconductor lasers, the corresponding temperature compensation of the bias current setting is changed, but if the modulation current remains unchanged at this ...
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 IPC IPC(8): H01S5/042H04B10/50
CPCH01S5/0427H04B10/504
Inventor 毛森杨雷宿志成毛虎焦英豪
Owner 深圳市利拓光电有限公司