Article

Five-port optical router for photonic networks-on-chip

Optoelectronic System Laboratory, Institute of Semiconductors, Chinese Academy of Sciences, P. O. Box 912, Beijing 100083, China.
Optics Express (Impact Factor: 3.49). 10/2011; 19(21):20258-68. DOI: 10.1364/OE.19.020258
Source: PubMed

ABSTRACT

We experimentally demonstrate a spatially non-blocking five-port optical router, which is based on microring resonators tuned through the thermo-optic effect. The characteristics of the microring-resonator-based switching element are investigated to achieve balanced performances in its two output ports. The optical router is fabricated on the SOI platform using standard CMOS processing. The effective footprint of the device is about 440×660 μm2. The microring resonators have 3-dB bandwidths of larger than 0.31 nm (38 GHz), and extinction ratios of better than 21 dB for through ports and 16 dB for drop ports. Finally, 12.5 Gbps high-speed signal transmission experiments verify the routing functionality of the optical router.

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    • "Ruiqiang Ji experimentally investigated a spatially nonblocking five-port optical router based on micro-ring resonators, which was tuned through the thermo-optics effect and 12.5 Gbps high-speed signal transmission rate was obtained [16]. S. K. Raghuwanshi analytically demonstrated a 1x4 signal router based on 2x2 electro-optic MZI switch and showed the variation in output power due to change in control signal [17]. "
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