Wavelength-tunable variable fiber-optic attenuator using liquid-crystal-mirror hybrid controls
Abbreviated Journal Title
IEEE Photonics Technol. Lett.
fiber optics; liquid crystals (LCs); microelectromechanical systems; variable optical attenuator (VOA); Engineering, Electrical & Electronic; Optics; Physics, Applied
Fiber-optic module is proposed using a hybrid liquid-crystal (LC)-mirror mechanics beam control mechanism that provides the dual functions of optical attenuation controls and wavelength selection with a high degree of sensitivity, all within one compact in-line module. The experimental module uses an LC deflector and a mechanically tuned bulk mirror as the hybrid optics. The module demonstrates a 1520-1570-nm coarse tuning range, a 1.44-nm fine tuning range, a > 30-dB attenuation range, a 3.7-dB optical insertion loss, < 0.1-dB polarization-dependent loss, and a full-width at half-maximum wavelength resolution of less than or equal to 0.3 nm. Module applications include tunable gain controlled optical transmitters and receivers.
Ieee Photonics Technology Letters
"Wavelength-tunable variable fiber-optic attenuator using liquid-crystal-mirror hybrid controls" (2005). Faculty Bibliography 2000s. 5604.