Widely tunable torsional optical filter
Publication Type:Journal Article
Source:IEEE Photonics Technology Letters, Volume 14, Number 6, p.819--821 (2002)
Keywords:Electro-optical filters; Fabry-Perot resonators; Micro-optics; Optical communication equipment; Optical tuning; Torsion; Wavelength division multiplexing; Spectral and other filters [A4280C]; Micro-optical devices and technology [A4283]; Optical communica
A broad range tunable optical filter using a torsional micromechanical structure is presented. The device has a continuous tuning range over 100 nm, from 1500 to 1600 nm, and the structure eliminates the potential catastrophic discharge problem associated with electrostatic micromachines. Transmission of a 2.5-Gb/s directly modulated 1550-nm vertical-cavity surface-emitting laser through the tunable filter shows no power penalty. (8 References).