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Inhomogeneous phase-visibility modulating interferometry by space on-off non-quadrature amplitude modulation
Uriel Rivera-Ortega1, Cruz Meneses-Fabian, Gustavo Rodriguez-Zurita
1Facultad de Ciencias Físico-Matemáticas, Benemérita Universidad Autónoma de Puebla, Apdo. Postal 165, Puebla, Pue. 72000, México.
Optics Express
|August 14, 2013
Summary
A novel interferometry method uses on-off non-quadrature amplitude modulation for object phase retrieval. This technique enables phase retrieval despite introducing visibility and phase variations, validated by analytical, numerical, and experimental results.
Area of Science:
- Optics and Photonics
- Interferometry
- Phase Retrieval
Background:
- Traditional interferometry methods face challenges in object phase retrieval.
- Non-quadrature amplitude modulation offers potential for advanced interferometric techniques.
Purpose of the Study:
- To present a new interferometry method for object phase retrieval using on-off non-quadrature amplitude modulation.
- To demonstrate the feasibility of phase retrieval despite introduced interferogram variations.
Main Methods:
- Implementation using three beams and two serially arranged Mach-Zehnder interferometers.
- Utilizing one arm as a probe beam and two arms as reference beams.
- Introducing a phase difference between reference beams to generate amplitude and phase modulation.
Main Results:
- Successful object phase retrieval demonstrated despite inhomogeneous visibility and phase variations.
- Analytical discussion supports the proposed modulation technique.
- Numerical and experimental results validate the method's effectiveness.
Conclusions:
- The proposed on-off non-quadrature amplitude modulation is a viable technique for object phase retrieval in interferometry.
- The method shows robustness in the presence of interferogram distortions.
- This advancement offers new possibilities for phase measurement applications.
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