A precoded closed-loop feedback thermal control method and system for a micro-ring modulator
A technology of micro-ring modulator and closed-loop feedback, which is applied in the general control system, control/regulation system, adaptive control, etc., and can solve the problems of limiting the speed of the micro-ring modulator and the limited range of use.
Active Publication Date: 2019-06-18
HUAZHONG UNIV OF SCI & TECH
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[0004] However, in the state of real-time data transmission, the refractive index information of the microring modulator acquired by the light-emitting diode depends on the statistical distribution of the input data, and directly using this information for feedback control is only suitable for the data that determines the statistical distribution. In practical applications, the The scope of use of the method will be limited
There are other methods in the literature that can extract deterministic information from random input data for feedback control, but this method will limit the speed of the microring modulator
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[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0022] figure 2 A schematic flow chart of the time-division multiplexing closed-loop feedback thermal control method provided by the present invention; figure 2 As shown, step S101-step S104 are included.
[0023] S101. Precoding the data to be transmitted, adding preset precoding information at a preset position of the data to be transmitted to obtain precoded data to be transmitted, and passing the precoded data to be transmitted through a microring modulator After being modulated, the precoding information is loaded onto the waveguide for transmission, and the precoding information is determ...
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The invention discloses a pre-coding closed-loop feedback heat control method for a micro-loop modulator and a system thereof. The method comprises the steps of performing pre-coding on to-be-transmitted data, adding preset pre-coding information at a preset position of the to-be-transmitted data, and obtaining the to-be-transmitted data after pre-coding; acquiring refractivity-related informationof the micro-loop modulator, wherein the refractivity-related information comprises temperature information of the micro-loop modulator and modulation information of the micro-loop modulator; throughcontrolling a sampling sequence for acquiring the refractivity-related information, making the modulation information of the micro-loop modulator at the sampling time of a signal sampler to the pre-coding information; acquiring the refractivity information of the micro-loop modulator from the refractivity-related information, and adjusting the temperature of the micro-loop modulator according tothe acquired refractivity information of the micro-loop modulator, thereby sustaining the refractivity of the micro-loop modulator to an expected value. According to the pre-coding closed-loop feedback heat control method, through pre-coding, operation of a feedback loop does not depend on statistics information of input data and furthermore working speed of the micro-loop modulator is not restricted.
Description
technical field [0001] The invention belongs to the technical field of closed-loop thermal control, and more specifically relates to a precoded closed-loop feedback thermal control method and system for a micro-ring modulator. Background technique [0002] Limited by transmission power consumption, traditional electrical interfaces will be difficult to meet the performance requirements of emerging applications for data transmission. Optical transmission has the potential to break through the performance bottleneck of electrical transmission, but the integration of large-scale photonic devices faces major challenges such as thermal sensitivity. Limited by many factors such as process precision and material thermal sensitivity coefficient, it is difficult to completely solve thermal sensitivity from the process and device levels. Fortunately, we can control the temperature of a single integrated photonic device to meet the requirements of use through feedback control. The re...
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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 谭旻
Owner HUAZHONG UNIV OF SCI & TECH