Study of temperature stability for fiber-optic Mach-Zehnder interferometer filter

摘要

Fiber-optic Mach-Zehnder interferometer can be used as wavelength-multiplexers and demultiplexers. The △L and △Φ directly influence the properties of M-Z. Through lengthening the △L, M-Z can demultiplex much more wavelengths. But the △L is longer, the temperature will influence M-Z more seriously. We explored a method to solve this problem, making M-Z work stably. The wavelength spacing is 0.8nm, and the extinction ratio is high.