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Integrated fiber Mach-Zehnder interferometer for electro-optic switching.
Optics Letters
|November 21, 2007
Summary
Researchers developed novel optical fibers with internal electrodes for integrated Mach-Zehnder interferometers. These devices demonstrate stable operation and efficient electric field application for potential photonic applications.
Area of Science:
- Materials Science
- Optical Engineering
- Photonics
Background:
- Developing integrated optical devices requires precise control over material properties and fabrication.
- Optical fibers offer a versatile platform for creating compact and efficient photonic components.
Purpose of the Study:
- To fabricate optical fibers with integrated internal electrodes for advanced photonic devices.
- To construct and characterize an integrated Mach-Zehnder interferometer using these novel fibers.
Main Methods:
- Utilizing molten alloys under high pressure to create solid, long internal electrodes within optical fibers.
- Constructing a Mach-Zehnder interferometer from a twin-core, twin-hole fiber enabling preferential electric field application.
Main Results:
- Successfully fabricated fibers with solid internal electrodes at room temperature.
- Achieved good stability and a low switching voltage of 1.4 kV in a 1-m-long fiber device.
- Observed a quadratic voltage dependence, indicating efficient electro-optic modulation.
Conclusions:
- The developed fabrication technique enables the creation of advanced optical fibers with integrated electrodes.
- The integrated Mach-Zehnder interferometer demonstrates promising performance for electro-optic modulation applications.
- This technology holds potential for future integrated photonic circuits and devices.
