title: Wide-range tunable Fabry-Perot array filter for wavelength-division multiplexing applications.
abstract: A new design for a Fabry-Perot-based array filter for wavelength-division multiplexing (WDM) applications is proposed. The device is composed of two partially reflective mirrors; the surface of one of the mirrors is stepwise. Not only does the configuration of multiple air-gap cavities into a single unit provide wavelength tunability but the channel numbers can be expanded. A four-channel multiplexer has been demonstrated. The results revealed that a compact and cost-effective WDM device should be easily attainable.
authors.affiliation: Institute of Photonics Technologies, National Tsing Hua University, Hsinchu, Taiwan 300, China. dyhsukimo@yahoo.com.tw
authors.forename: Der Yi
authors.initials: DY
authors.lastname: Hsu
authors.forename: Jim Wein
authors.initials: JW
authors.lastname: Lin
authors.forename: Sen Yen
authors.initials: SY
authors.lastname: Shaw