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Wide-range tunable Fabry-Perot array filter for wavelength-division multiplexing applications
Der Yi Hsu1, Jim Wein Lin, Sen Yen Shaw
1Institute of Photonics Technologies, National Tsing Hua University, Hsinchu, Taiwan 300, China. dyhsukimo@yahoo.com.tw
Applied Optics
|April 9, 2005
Summary
A novel Fabry-Perot filter design expands channel capacity for wavelength-division multiplexing (WDM). This compact, cost-effective device offers tunable wavelengths and easy channel expansion for WDM systems.
Area of Science:
- Optics and Photonics
- Telecommunications Engineering
Background:
- Wavelength-division multiplexing (WDM) is crucial for high-capacity optical communication.
- Existing WDM filters face challenges in scalability and cost-effectiveness.
Purpose of the Study:
- To propose a new Fabry-Perot-based array filter design for WDM applications.
- To demonstrate a compact and cost-effective WDM device with expanded channel capabilities.
Main Methods:
- The proposed device utilizes two partially reflective mirrors, with one mirror featuring a stepwise surface.
- Multiple air-gap cavities are integrated into a single unit.
- A four-channel multiplexer was fabricated and tested.
Main Results:
- The design enables wavelength tunability.
- The configuration allows for expansion of channel numbers.
- A functional four-channel multiplexer was successfully demonstrated.
Conclusions:
- The proposed Fabry-Perot-based array filter offers a promising solution for WDM systems.
- The design facilitates the creation of compact and cost-effective WDM devices.
- This approach supports increased channel capacity and wavelength tunability in optical networks.