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Electrooptic polarization switch for multimode fibers.
Applied Optics
|February 20, 2010
Summary
Designing an electrooptic polarization switch for multimode fiber systems is feasible. Using isotropic materials like CdTe offers a 30-dB signal-to-crosstalk ratio with acceptable control voltages.
Area of Science:
- Optoelectronics
- Optical Communication Systems
- Materials Science
Background:
- Electrooptic polarization switches are crucial components in optical communication.
- Multimode optical fiber systems present unique challenges for device integration.
- Minimizing optical crosstalk and control voltage is essential for practical applications.
Purpose of the Study:
- To theoretically analyze the performance of electrooptic polarization switches.
- To determine the feasibility of designing switches for multimode fiber systems.
- To assess optical crosstalk and control voltage requirements.
Main Methods:
- Theoretical analysis of electrooptic polarization switch design.
- Simulation of device performance with different optical materials.
- Evaluation of signal-to-crosstalk ratio and drive voltage.
Main Results:
- A 30-dB signal-to-crosstalk ratio is achievable with isotropic materials (e.g., CdTe).
- Anisotropic materials (e.g., LiTaO3) yield lower isolation (~7 dB).
- Drive voltages range from 10 V to 50 V for both material types.
Conclusions:
- Electrooptic polarization switches can be designed for multimode fiber systems.
- Material selection significantly impacts optical crosstalk and isolation.
- The proposed designs offer practical solutions for optical switching applications.
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