An optical module capable of working in a low-temperature environment and a method for realizing its work
A low-temperature environment, optical module technology, applied in the field of optical modules, can solve the problems of manufacturing process, high cost requirements, limited process level, difficult to improve, etc., and achieves a simple manufacturing process, low cost, and improved working temperature. Effect
Active Publication Date: 2016-03-16
四川华拓光通信股份有限公司
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Problems solved by technology
This method is limited by the technological level, and it is difficult to improve in the short term
In addition, the existing technology also supports the installation of heating components and thermocouples inside the optical device TOSA to increase the operating temperature range of the optical device in the optical module, but this technology requires high manufacturing processes and costs
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[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0030] Such as figure 1 and image 3 As shown, the present invention provides an optical module that can work in a low temperature environment, including: a heated element 3;
[0031] The heating circuit includes a heating element, the heating element is a section of copper wire 1 arranged on the printed circuit board in the prior art optical module, the heating element is arranged near the heated element 2 and connected to the heated element 2 Electrical insulation between heating elements; temperature sensor, which is used to detect the real-time temperature near the heated element; and controller, which is a micro control unit 2, which stores a lower temperature limit inside, and the controller communicates with the temperature sensor connection, receive the real-time te...
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The invention discloses an optical module capable of working in a low-temperature environment. The optical module comprises a heated element, a heating loop, a temperature sensor and a controller. The heating loop comprises a heating element, the heating element is a copper wire arranged on a printed circuit board, and the heating element is insulated from the heated element arranged near the heating element. The temperature sensor is used for detecting the real-time temperature near the heated element. A temperature lower limit is stored inside the controller, and the controller receives the real-time temperature of the temperature sensor and compares the real-time temperature with the stored temperature lower limit. If the real-time temperature is lower than the temperature lower limit, the controller controls breakover of the heating loop to enable the heating element to heat the heated element. The invention further provides a method for realizing work of the optical module. According to the optical module and the method, the heating effect of the copper wire itself in the controllable heating loop is used for heating the internal components of the optical module to increase the working temperature of the internal components, so that the working temperature of the whole optical module is increased; the manufacturing technology is simple, the cost is low, and practicability is high.
Description
technical field [0001] The invention relates to the technical field of optical fiber communication, in particular to an optical module that can work in a low-temperature environment and a method for realizing the work. Background technique [0002] The optical module is composed of optoelectronic devices, functional circuits and optical interfaces. The optoelectronic devices include two parts: transmitting and receiving. The transmitting part is: the electrical signal of a certain code rate is input and processed by the internal driver chip to drive the semiconductor laser (LD) or light-emitting diode (LED) to emit a modulated optical signal at a corresponding rate. It has an optical power automatic control circuit inside, so that The output optical signal power remains stable. The receiving part is: an optical signal with a certain code rate is input into the module and then converted into an electrical signal by a light detection diode. After the preamplifier, the electr...
Claims
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IPC IPC(8): H05B1/02H05B3/20G02B6/42
Inventor 范巍陈气超
Owner 四川华拓光通信股份有限公司