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Characteristic adjustment method of multistage Mach-Zehnder interferometer type optical circuit and multistage Mach-Zehnder interferometer type optical circuit
Characteristic adjustment method of multistage Mach-Zehnder interferometer type optical circuit and multistage Mach-Zehnder interferometer type optical circuit
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机译:多级马赫曾德尔干涉仪型光路的特性调整方法及多级马赫曾德尔干涉仪型光路
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摘要
A multistage Mach-Zehnder interferometer type optical circuit including any number of symmetrical Mach-Zehnder interferometers and any number of asymmetrical Mach-Zehnder interferometers connected in cascade. In the optical circuit, low coherence light is used first to obtain individual phase control conditions of the symmetrical Mach-Zehnder interferometers without being affected by the asymmetrical Mach-Zehnder interferometers. Second, phase control conditions of the individual asymmetrical Mach-Zehnder interferometers are obtained by controlling the symmetrical Mach-Zehnder interferometers based on the first phase control conditions. Finally, the characteristic adjustment of the whole multistage Mach-Zehnder interferometer type optical circuit is carried out by controlling all the interferometers based on the phase control conditions of both the symmetrical Mach-Zehnder interferometers and asymmetrical Mach-Zehnder interferometers and setting the phase shift amounts of the individual interferometers at appropriate values.
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