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Electro-optic Solc-type wavelength filter in periodically poled lithium niobate
Xianfeng Chen1, Jianhong Shi, Yuping Chen
1Institute of Optics and Photonics, Department of Physics, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China. xfchen@sjtu.edu.cn
Optics Letters
|November 1, 2003
Summary
We developed an electro-optic tunable filter using periodically poled lithium niobate (PPLN). This device exhibits tunable wavelength properties, modulated by electric fields and temperature, for advanced optical applications.
Area of Science:
- Photonics and Optical Engineering
- Materials Science
- Solid-State Physics
Background:
- Solc-type filters offer wavelength selectivity.
- Periodically poled lithium niobate (PPLN) is a key material for nonlinear optics and electro-optic devices.
- Electro-optic modulation and thermal tuning are crucial for dynamic optical systems.
Purpose of the Study:
- To demonstrate an electro-optic Solc-type wavelength filter.
- To investigate the performance of such a filter in periodically poled lithium niobate.
- To explore methods for modulating and tuning the filter's characteristics.
Main Methods:
- Fabrication of a Solc-type filter structure within PPLN.
- Experimental observation of the transmission spectrum in the 20.2–20.8 micrometer range.
- Application of electric fields along the Y-axis of the PPLN to modulate transmission power.
- Investigation of temperature effects on the filter's wavelength.
Main Results:
- Successful demonstration of a Solc-type transmission spectrum in PPLN.
- Achieved modulation of transmission power via applied electric fields.
- Observed tunability of the filter's wavelength with temperature.
- Characterized the filter's performance across four periods within the specified wavelength range.
Conclusions:
- The study successfully demonstrates an electro-optic Solc-type wavelength filter in PPLN.
- The filter's transmission power is effectively modulated by electric fields.
- Wavelength tunability is achievable through temperature control, offering versatile optical filtering capabilities.