Reconfigurable optical add-drop multiplexer (R-OADM) based on silicon photonic crystal slab waveguides

Tao Chu; Hirohito Yamada; Akiko Gomyo; Jun Ushida; Satomi Ishida; Yasuhiko Arakawa

doi:10.1117/12.688125

13 October 2006 Reconfigurable optical add-drop multiplexer (R-OADM) based on silicon photonic crystal slab waveguides

Tao Chu, Hirohito Yamada, Akiko Gomyo, Jun Ushida, Satomi Ishida, Yasuhiko Arakawa

Proceedings Volume 6376, Optomechatronic Micro/Nano Devices and Components II; 63760I (2006) https://doi.org/10.1117/12.688125
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

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 2x2 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.

Citation Download Citation

Tao Chu, Hirohito Yamada, Akiko Gomyo, Jun Ushida, Satomi Ishida, and Yasuhiko Arakawa "Reconfigurable optical add-drop multiplexer (R-OADM) based on silicon photonic crystal slab waveguides", Proc. SPIE 6376, Optomechatronic Micro/Nano Devices and Components II, 63760I (13 October 2006); https://doi.org/10.1117/12.688125

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