Title :
A wavelength selective switch with flat passband using a free-space grating and MEMS phase-shifters
Author :
Yu, Kyoungsik ; Park, Namkyoo ; Lee, Daesung ; Solgaard, Olav
Author_Institution :
Korea Electr. Eng. & Sci. Res. Inst., Seoul Nat. Univ., South Korea
Abstract :
We report on a 2×2 wavelength selective switch with 6.4 dB insertion loss and >25 dB extinction ratio. The folded Mach-Zehnder geometry, with a free-space grating and MEMS phase-shifters, enables fast independent control of multiple spectral regions.
Keywords :
Mach-Zehnder interferometers; diffraction gratings; micromirrors; optical communication equipment; optical losses; optical phase shifters; optical switches; optical wavelength conversion; 6.4 dB; MEMS phase-shifters; Mach-Zehnder geometry; extinction ratio; free-space grating; multiple spectral region; wavelength selective switch; Gratings; High speed optical techniques; Micromechanical devices; Optical attenuators; Optical filters; Optical interferometry; Optical sensors; Passband; Phased arrays; Switches;
Conference_Titel :
Quantum Electronics and Laser Science Conference, 2005. QELS '05
Print_ISBN :
1-55752-796-2
DOI :
10.1109/QELS.2005.1549002
