A kind of optical module and its temperature compensation method
A technology of optical module and ambient temperature, which is applied in the field of optical communication, can solve the problems of sensitivity degradation at the receiving end, achieve the effect of improving receiving sensitivity, improving performance degradation, and facilitating implementation
Active Publication Date: 2019-06-18
HISENSE BROADBAND MULTIMEDIA TECH
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Problems solved by technology
[0005] The purpose of the present invention is to provide an optical module and its temperature compensation method to solve the problem that the sensitivity of the receiving end of the optical module will deteriorate at low temperature
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] The receiving sensitivity of the avalanche photodiode in the optical module is easily affected by the ambient temperature, especially in a low temperature environment, the avalanche photodiode is prone to work unstable, resulting in the degradation of the receiving sensitivity of the optical module. The embodiment of the present invention provides an optical module and its temperature compensation method. The basic design principle is: for high-speed optic...
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The embodiment of the present invention shows an optical module and its temperature compensation method. Specifically, according to the structural characteristics that the light receiving component and the printed circuit board are connected by a flexible circuit board, a heating layer is made on the flexible circuit board in the optical module; and then , use the processor in the optical module to control the heating of the heating layer according to the obtained temperature value of the optical module; finally, use the heat conduction method to realize the heating of the avalanche photodiode in the light receiving component by the heating layer, and compensate for the avalanche photodiode The temperature change of the surrounding environment can finally achieve the purpose of improving the performance degradation of the avalanche photodiode at low temperature. This embodiment provides an optical module, since it is only necessary to add a heating layer on the flexible circuit board to improve the receiving sensitivity of the optical module at low temperature, and there is no need to change the structure and components of the light receiving component, so it also has a simple structure , The advantages of easy implementation.
Description
technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical module and a temperature compensation method thereof. Background technique [0002] In recent years, trunk line transmission, metropolitan area network, access network, Ethernet, and local area network have increasingly adopted optical fiber for transmission; FTTC (Fiber To The Curb, fiber to the curb), FTTB (Fiber To The Building , Fiber To The Building), FTTH (Fiber To The House, Fiber To The Home), FTTD (Fiber To The Desk, Fiber To The Desktop) are constantly developing, and the optical contact is getting closer and closer to us. On each optical contact, an optical module is required to realize the conversion between optical signals and electrical signals. [0003] The optical module includes a light receiving component and a light emitting component. The optical receiving component is used to convert the received optical signal into an electrical si...
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IPC IPC(8): G02B6/42H04B10/60H04B10/69H04B10/40
CPCG02B6/4266H04B10/40H04B10/60H04B10/691
Inventor 胥嫏
Owner HISENSE BROADBAND MULTIMEDIA TECH