Photodiode wavelength control method and device
A technology of photodiode and wavelength control, which is applied in the direction of devices, circuits, lasers, etc. to control the output parameters of lasers, and can solve problems such as high cost, time-consuming and labor-intensive installation, and large system volume.
Inactive Publication Date: 2020-10-20
SHENZHEN PHOGRAIN INTELLIGENT SENSING TECH CO LTD
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Problems solved by technology
This will cause the entire system to be bulky, costly, and time-consuming and labor-intensive to install
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[0037] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present application.
[0038] figure 1 It is a schematic flowchart of a method for controlling the wavelength of a photodiode provided by an embodiment. refer to figure 1 , the method includes the following steps:
[0039] S100: Receive a user instruction, and control the semiconductor temperature controller to control the temperature of the photodiode chi...
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The invention relates to a photodiode wavelength control method and device. The method comprises the following steps: controlling the semiconductor temperature controller to carry out temperature control on the photodiode chip; enabling the photodiode chip to reach the current target temperature at the current moment; determining a corresponding target light-emitting strip on the photodiode chip according to the current target temperature, powering up a pair of electrodes corresponding to the target light-emitting strip; a pair of electrodes corresponding to the target light-emitting strip acting on the target light-emitting strip, the target light-emitting strip emitting target laser containing target wavelengths, controlling the photodiode chip to reach a target temperature at the next moment, and emitting corresponding target temperatures until all target lasers with different target wavelengths are emitted. The temperature of the photodiode chip is regulated and controlled, so thatthe photodiode chip emits laser with different wavelengths, the use of a laser device chip and a TO device is reduced, the installation and combination complexity is reduced, the cost is saved, and the process period is shortened.
Description
technical field [0001] The present application relates to the technical field of semiconductor chips, in particular to a method and device for controlling the wavelength of a photodiode. Background technique [0002] A laser transmitter is a device that emits laser light. Existing laser emitters are usually single laser emitters, that is, emit one beam / line of laser, and emit laser light with a single wavelength. In the field of optical transmission, optical transmission usually adopts wavelength division multiplexing. Wavelength division multiplexing is a technology that combines two or more optical carrier signals of different wavelengths (carrying various information) at the sending end through a multiplexer, and couples them to the same optical fiber of the optical line for transmission; that is A technology that simultaneously transmits two or more optical signals of different wavelengths in the same optical fiber. In order to realize wavelength division multiplexing...
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Login to View More IPC IPC(8): H01S5/06H01S5/10H01S5/042
CPCH01S5/0427H01S5/0612H01S5/1096
Inventor 刘宏亮杨彦伟李莹张续朋
Owner SHENZHEN PHOGRAIN INTELLIGENT SENSING TECH CO LTD