A system for implementing closed-loop control of different types of integrated photonic systems
A technology of integrated photonics and closed-loop control, which is applied in the direction of program control, computer control, general control system, etc., can solve the problems of low integration and achieve the effect of high integration, low power consumption and stable operation
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Embodiment 1
[0037] Such as Figure 6 As shown, in this embodiment, there are 2 types of integrated photonic systems to be controlled, and the number of each type of integrated photonic system is 1. Wherein, the controlled integrated photonic systems are polarization control integrated photonic system 206-1 and Mach-Zehnder modulator 206-2 respectively. By controlling the polarization control integrated photonic system 206-1, the conversion of any polarization state input light to a single polarization state output light can be realized; by controlling the bias state of the Mach-Zehnder modulator 206-2, the modulator can be stabilized at the best working point. When the above two integrated photonic systems are in the best working state or realize complete functions, their feedback signals are at the minimum.
[0038] For the polarization control integrated photonic system 206-1, the input light 233 of any polarization state passes through the polarization rotating beam splitter 221 to g...
Embodiment 2
[0049] Such as Figure 7 As shown, in this embodiment, there are 2 types of integrated photonic systems to be controlled, and the number of each type of integrated photonic system is 1. Among them, the controlled integrated photonic systems are respectively the microring resonator 206-1 and the Pound-Drever-Hall laser frequency stabilization system 206-2. By controlling the resonant wavelength of the microring resonator 206-1, precise filters or optical switches can be realized; by controlling the resonant wavelength of the tunable laser in the Pound-Drever-Hall laser frequency stabilization system 206-2, the Laser Phase Noise. When the above two integrated photonic systems are in the best working state or realize complete functions, their feedback signals are at the maximum value.
[0050] For the microring resonator 206-1, after the input light 301 with a fixed wavelength enters the resonator, two optical signals are generated due to the resonant structure, one of which is...
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