An integrated optical M-Z structural module converter

Abstract

This invention provides a new integration optics M-Z structure A / D converter, which makes each M-Z interferometer modulation electrode of same length on the basis of Taylor scheme and orderly amplifies sampling signal twice as big as before through N-1 pieces of electron amplifier and adds them onto the modulation electrode 15 of the two arms of N-2 interferometer and then modulates to the sampling light impulse.

Description

technical field [0001] The invention belongs to the technical field of optoelectronics, and in particular relates to an integrated optical Mach-Zehnder (abbreviated as M-Z) structure analog-to-digital converter. Background technique [0002] The process of sampling and quantifying the analog quantity that changes continuously with time at a certain time interval to generate a digital signal is called analog-to-digital conversion A / D, and the device that realizes this function is called an analog-to-digital converter ADC. The development of computer technology makes ADC widely used in data acquisition and dynamic control of the system; since the noise hardly affects the reproduction accuracy of the digital signal in transmission and regeneration, but the analog signal is greatly affected by the noise, so the digital transmission of the analog signal has gradually become the mainstream , ADC is widely used in communication. Now, ADC has been widely used in various signal proc...

AI Technical Summary

Problems solved by technology

[0033] The advantage of the Taylor (Taylor) scheme is that quantization has been realized in the optical domain, and its disadvantage is that with the increase of the number of digits, the electrode length increases with n Incremental, resulting in a decrease in the sampling rate of the ADC, so its ADC cannot achieve a higher number of bits

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