Title :
Athermal holographic filters
Author :
Hsieh, Hung-Te ; Panotopoulos, George ; Liger, Matthieu ; Tai, Yu-Chong ; Psaltis, Demetri
Author_Institution :
Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA
Abstract :
This letter presents the theory and experimental results of an athermal holographic filter design employing a thermally actuated microelectromechanical system mirror to compensate for the drift of Bragg wavelength due to changes of temperature. The center wavelength of our holographic filter is shown to remain constant from 21°C to 60°C.
Keywords :
Bragg gratings; compensation; holographic gratings; micromirrors; optical communication equipment; optical filters; temperature distribution; wavelength division multiplexing; 21 to 60 C; Bragg wavelength drift compensation; athermal holographic filter design; bimetallic composite beam; holographically imprinted grating; microelectromechanical system mirror; temperature compensations; thermally actuated mirror; wavelength-division multiplexing; Bragg gratings; Filtering theory; Filters; Geometry; Holography; Optical reflection; Temperature dependence; Thermal expansion; Thermal stresses; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.820483
