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Updated: May 18, 2026
14:18
Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
Published on: February 28, 2016
Note: digital optical zoom by selection of polarization.
1Department of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
The Review of Scientific Instruments
|October 2, 2012
Summary
A novel optical imaging system uses a liquid crystal cell and polarizing beam splitter to select between two image paths. One path offers four times the magnification of the other for detailed analysis.
Area of Science:
- Optical Engineering
- Image Processing
- Photonics
Background:
- Optical imaging systems often require variable magnification capabilities.
- Selecting specific optical paths is crucial for controlling image acquisition.
- Polarizing beam splitters and liquid crystal cells offer advanced optical control.
Purpose of the Study:
- To develop an optical imaging system capable of selecting between two magnifications.
- To integrate a liquid crystal cell with a polarizing beam splitter for path selection.
- To enable dual-magnification imaging onto a single detector.
Main Methods:
- Utilized a liquid crystal cell in conjunction with a polarizing beam splitter.
- Designed an optical system with two distinct focal paths.
- Employed a CCD detector to capture images from both paths.
Main Results:
- Successfully selected one of two optical paths using the integrated system.
- Both paths focused the same image onto the CCD detector.
- Achieved a magnification difference of 4x between the two selected paths.
Conclusions:
- The combination of a liquid crystal cell and polarizing beam splitter effectively controls optical paths.
- This system provides a method for dual-magnification imaging with a single detector.
- The developed system offers flexibility in optical imaging applications.
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