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1 x 2 precise electro-optic switch in periodically poled lithium niobate.
Juan Huo1, Kun Liu, Xianfeng Chen
1Department of Physics, The State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, 800 Dongchuan Rd. Shanghai 200240, China.
Optics Express
|August 20, 2010
Summary
A novel 1x2 precise electro-optic switch was developed using periodically poled lithium niobate. This device efficiently shifts optical signals between channels with a wide wavelength tolerance, enhancing practical applications.
Area of Science:
- Photonics and Optical Engineering
- Materials Science
Background:
- Electro-optic switches are crucial components in optical communication and signal processing.
- Periodically poled lithium niobate (PPLN) offers unique electro-optic properties for device fabrication.
Purpose of the Study:
- To demonstrate a precise 1x2 electro-optic switch.
- To investigate the performance of such a switch in a PPLN crystal.
- To analyze the device's tolerance to wavelength drift.
Main Methods:
- Fabrication of a 1x2 electro-optic switch within a PPLN crystal.
- Experimental shifting of optical signals using applied electric fields.
- Characterization of the switch's working wavelength bandwidth.
Main Results:
- Successful demonstration of a 1x2 precise electro-optic switch.
- Optical signals were effectively routed to different channels by electric field adjustment.
- The switch exhibited a working wavelength bandwidth of approximately 2 nm.
Conclusions:
- The developed PPLN-based electro-optic switch shows promise for practical applications due to its precise control and tolerance to wavelength variations.
- Theoretical analysis supports the device's functionality and potential for further development.
