An eye diagram automatic compensation optical module and its eye diagram automatic compensation method
An automatic compensation, optical module technology, used in lasers, laser parts, semiconductor lasers, etc., can solve problems such as poor electrical eye diagrams, and achieve the effect of ensuring working conditions and improving stability.
Active Publication Date: 2019-07-09
WUHAN HENGTAITONG TECH
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Problems solved by technology
If the decrease of the optical port index is caused by the poor electrical eye diagram, then it cannot be solved only by compensating the temperature characteristics of the optical device
Method used
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Embodiment 1
[0056] Embodiment 1, taking a 10G SFP optical module as an example, step S1 to step S2 are cyclically performed to obtain an eye diagram of the optical module at a high temperature of 85°C.
[0057] Such as image 3 and Figure 4 Shown are the eye diagrams of the 10G SFP optical module at a high temperature of 85°C, before and after the optical module eye diagram compensation, from Figure 4 It can be seen from the figure that the eye diagram shape, jitter, intersection point, rising / falling edge and other parameters of the optical module eye diagram after eye diagram compensation have been significantly improved.
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The invention relates to an eye diagram automatic light compensation module and an eye diagram automatic compensation method thereof. The eye diagram automatic light compensation module comprises an LD temperature sensor, an LDD temperature sensor, an MCU and an LD driver. The LD temperature sensor and the LDD temperature sensor are connected with the signal input of the MCU. The LD driver is connected with the signal output end of the MCU. The beneficial effects of the eye diagram automatic light compensation module and the eye diagram automatic compensation method thereof are that two temperature sensors are used, the circuit and the light path are simultaneously monitored, the non-uniform temperature can still be compensated, the general light module temperature is fined into the temperature of the laser LD and the temperature of the laser driver LDD, and the electrical characteristics of the driver are compensated before the optical characteristics of the laser are compensated so as to be optimized.
Description
technical field [0001] The invention relates to the technical field of optical module eye diagram compensation, in particular to an eye diagram automatic compensation optical module and an eye diagram automatic compensation method thereof. Background technique [0002] With the rapid development of the optical communication industry, data communication, mobile communication and optical transmission network, the demand for optical modules is increasing day by day. As the application environment of optical modules becomes more and more complex, traditional APC (Automatic Power Control, automatic power control) optical power compensation and linear extinction ratio compensation cannot guarantee the stability of optical power and extinction ratio of the module in the full temperature range. [0003] When the traditional optical module is used, as the temperature changes, the MCU (micro processing unit) needs to compensate the transmitted optical power and extinction ratio of the...
Claims
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IPC IPC(8): H01S5/062H01S5/042
Inventor 王亚丽杨国民
Owner WUHAN HENGTAITONG TECH
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