TY - GEN
T1 - Reconfigurable optical add/drop multiplexer (R-OADM) based on silicon photonic crystal slab waveguides
AU - Chu, Tao
AU - Yamada, Hirohito
AU - Gomyo, Akiko
AU - Ushida, Jun
AU - Ishida, Satomi
AU - Arakawa, Yasuhiko
PY - 2006/12/1
Y1 - 2006/12/1
N2 - Reconfigurable optical add/drop multiplexers (R-OADMs) are indispensable devices in wavelength division multiplexing (WDM) network systems, since they can be used for dynamically wavelength routing and for replacing any failed OADM unit. Here, we propose a photonic integrated R-OADM device based on silicon photonic crystal (PhC) slab waveguides, which is controlled through thermo-optic effect. The R-OADM device was composed of a tunable wavelength multiplexer/demultiplexer and a 2×2 optical switch, which were both formed with Mach-Zehnder interferometers (MZIs). The device was compact with a net footprint of 500 μm × 140 μm, excluding its electrode pads. The dropping central wavelength of the R-OADM can be tuned through thermo-optic effect, and the output port of the drop signal can be selected between the THROUGH and DROP ports with the 2×2 optical switch. A maximum 10.8 nm dropping wavelength tuning was obtained with a heating power of 0.9 W. The 3-dB channel-dropping bandwidth was 5 nm and the extinction ratio at the dropping wavelength for the port THROUGH was as high as 40 dB. The tuning response speed was about 100 μsec.
AB - Reconfigurable optical add/drop multiplexers (R-OADMs) are indispensable devices in wavelength division multiplexing (WDM) network systems, since they can be used for dynamically wavelength routing and for replacing any failed OADM unit. Here, we propose a photonic integrated R-OADM device based on silicon photonic crystal (PhC) slab waveguides, which is controlled through thermo-optic effect. The R-OADM device was composed of a tunable wavelength multiplexer/demultiplexer and a 2×2 optical switch, which were both formed with Mach-Zehnder interferometers (MZIs). The device was compact with a net footprint of 500 μm × 140 μm, excluding its electrode pads. The dropping central wavelength of the R-OADM can be tuned through thermo-optic effect, and the output port of the drop signal can be selected between the THROUGH and DROP ports with the 2×2 optical switch. A maximum 10.8 nm dropping wavelength tuning was obtained with a heating power of 0.9 W. The 3-dB channel-dropping bandwidth was 5 nm and the extinction ratio at the dropping wavelength for the port THROUGH was as high as 40 dB. The tuning response speed was about 100 μsec.
KW - Integrated optics
KW - Line-defect waveguide
KW - Mach-zehnder interferometer
KW - Photonic crystal
KW - Reconfigurable optical add/drop multiplexer (R-OADM)
KW - Silicon photonics
KW - Thermo-optic effects
KW - Wavelength-division multiplexing
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U2 - 10.1117/12.688125
DO - 10.1117/12.688125
M3 - Conference contribution
AN - SCOPUS:33846260747
SN - 0819464740
SN - 9780819464743
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Optomechatronic Micro/Nano Devices and Components II
T2 - Optomechatronic Micro/Nano Devices and Components II
Y2 - 3 October 2006 through 4 October 2006
ER -