Split-wave front Mach-Zehnder interferometer and method based on broadband fiber collimator
A fiber collimator and interferometer technology, applied in the field of fiber optic interferometer, can solve the problems of increasing the wavelength interval of spectral sampling, low resolution of interference spectrum, weak sensing ability, etc. Excellent stickiness and high spectral quality
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Embodiment 1
[0025] Such as Figure 1-4 As shown, the demultiplexing front Mach-Zehnder interferometer and method based on the broadband fiber collimator of the present invention include the first optical fiber 1, the first fiber collimator 2, and the second fiber collimator arranged in sequence 4 and the second optical fiber 5, wherein the first fiber collimator 2 is connected behind the first fiber 1, the central axis of the first fiber collimator 2 and the second fiber collimator 4 are on a straight line, and the first A transparent film 3 is provided between the fiber collimator 2 and the second fiber collimator 4 , and the second fiber 5 is connected behind the second fiber collimator 4 .
[0026] In order to further illustrate the above-mentioned embodiment, the two light-transmitting surfaces of the transparent film 3 are perpendicular to the central axes of the first fiber collimator 2 and the second fiber collimator 4, and the transparent film 3 partially blocks the first fiber co...
Embodiment 2
[0042] An implementation method of a split-wavefront Mach-Zehnder interferometer and method based on a broadband fiber collimator, comprising the following steps:
[0043] ① The broadband divergent beam emitted by the first optical fiber 1 is incident on the first fiber collimator 2, and the first fiber collimator 2 converts the broadband divergent beam into a broadband parallel Gaussian beam, and enters the transparent film 3;
[0044] ②The two light-transmitting surfaces of the transparent film 3 are perpendicular to the propagation direction of the parallel Gaussian beam, which can divide the wavefront of the broadband parallel Gaussian beam, and the broadband parallel Gaussian beam whose wavefront is divided is incident on the second fiber collimator 4;
[0045] ③ The Gaussian beam passing through the second fiber collimator 4 is converged into the second fiber 5 to construct a sub-wavefront fiber Mach-Zehnder interferometer.
[0046] Using the split-wavefront Mach-Zehnder...
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