Mach-Zehnder electro-optical modulator and modulation method

Abstract

The invention provides a Mach-Zehnder electro-optical modulator and a modulation method, the Mach-Zehnder electro-optical modulator comprises a first 2 * 2MMI structure, a second 2 * 2MMI structure and two phase modulation arms, the phase modulation arms are located between the first 2 * 2MMI structure and the second 2 * 2MMI structure, and the two sides of each phase modulation arm are provided with a DC electrode and an RF electrode so as to form an electro-optical modulator comprising one input optical waveguide and three output optical waveguides; the electro-optical modulator is located in the first environment, the three output optical waveguides are coupled with the three output optical fibers located in the second environment respectively, and the temperature in the first environment is lower than that in the second environment. According to the invention, the dissipation of light waves in a low-temperature area can be reduced, so that the refrigeration energy consumption can be reduced, and meanwhile, the bit energy consumption of a transmission system is reduced; furthermore, the electro-optical modulator is biased in a working area, so that the first output optical waveguide outputs the minimum light intensity, and the modulation signal has a high extinction ratio.

Description

technical field [0001] The invention belongs to the field of optical communication, and relates to a Mach-Zehnder electro-optical modulator and a modulation method. Background technique [0002] At present, the power consumption of data centers and high-performance computers (HPC) based on room temperature CMOS technology continues to increase, and people are turning to the field of low-temperature computing with high speed and low power consumption to seek alternatives. However, all cryogenic processor implementations require massive high-speed data transfers between cryogenic and room temperature. For example, a classical processor based on a single flux quantum (SFQ) signal needs to operate at a temperature range of about 4K, while superconducting quantum computing needs to operate at temperatures below 100mK. Therefore, they all require high-speed and low-power data transfer between cryogenic and room-temperature devices. Obviously, optical interconnection technology i...

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Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a Mach-Zehnder electro-optic modulator and modulation method for solving the problems in the prior art The optical field of the electro-optic modulator is dissipated in the low-temperature area, which increases the cooling power consumption and leads to the problem of high bit energy consumption

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