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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Off-axis interferometer with adjustable fringe contrast based on polarization encoding.

Sharon Karepov, Natan T Shaked, Tal Ellenbogen

|September 23, 2015

Summary

This summary is machine-generated.

We developed a new interferometric system for imaging low polarizing samples. This system enables quantitative phase acquisition with controlled fringe visibility and single-exposure reconstruction.

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Area of Science:

Optics and Photonics
Biomedical Imaging
Microscopy

Background:

Quantitative phase imaging (QPI) is crucial for label-free cell analysis.
Conventional QPI systems often struggle with low polarizing samples.
Existing methods may require complex setups or multiple exposures.

Purpose of the Study:

To introduce a compact, off-axis interferometric system for QPI of low polarizing samples.
To enable quantitative phase acquisition with enhanced fringe visibility.
To demonstrate a single-exposure phase reconstruction method.

Main Methods:

A spatial polarization encoder was integrated into a transmission microscope at the Fourier plane.
The encoder selectively preserves sample information in one polarization state while erasing it in the orthogonal state.
Interference fringe visibility was controlled via polarization manipulations.

Main Results:

The system successfully performed quantitative phase imaging of a USAF 1951 phase test target and human red blood cells.
Optimal fringe visibility was achieved.
Single-exposure phase reconstruction was demonstrated.

Conclusions:

The proposed system offers a compact and efficient solution for QPI of low polarizing samples.
The spatial polarization encoder effectively enables quantitative phase acquisition.
The method provides high-quality phase images with controlled visibility and rapid reconstruction.