Flexible multimode polymer waveguides for high-speed short-reach communication links

N. Bamiedakis; F. Shi; D. Chu; R. V. Penty; I. H. White

doi:10.1117/12.2289737

22 February 2018 Flexible multimode polymer waveguides for high-speed short-reach communication links

N. Bamiedakis, F. Shi, D. Chu, R. V. Penty, I. H. White

Proceedings Volume 10538, Optical Interconnects XVIII; 105380N (2018) https://doi.org/10.1117/12.2289737
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

Multimode polymer waveguides have attracted great interest for use in high-speed short-reach communication links as they can be cost-effectively integrated onto standard PCBs using conventional methods of the electronics industry and provide low loss (<0.04 dB/cm at 850 nm) and high bandwidth (>30 GHz×m) interconnection. The formation of such waveguides on flexible substrates can further provide flexible low-weight low-thickness interconnects and offer additional freedom in the implementation of high-speed short-reach optical links. These attributes make these flexible waveguides particularly attractive for use in low-cost detachable chip-to-chip links and in environments where weight and shape conformity become important, such as in cars and aircraft. However, the highly-multimoded nature of these waveguides raises important questions about their performance under severe flex due to mode loss and mode coupling. In this work therefore, we investigate the loss, crosstalk and bandwidth performance of such waveguides under out-of plane bending and in-plane twisting under different launch conditions and carry out data transmission tests at 40 Gb/s on a 1 m long spiral flexible waveguide under flexure. Excellent optical transmission characteristics are obtained while robust loss, crosstalk and bandwidth performance are demonstrated under flexure. Error-free (BER<10^-12) 40 Gb/s data transmission is achieved over the 1 m long spiral waveguide for a 180° bend with a 4 mm radius. The obtained results demonstrate the excellent optical and mechanical properties of this technology and highlight its potential for use in real-world systems.

Citation Download Citation

N. Bamiedakis, F. Shi, D. Chu, R. V. Penty, and I. H. White "Flexible multimode polymer waveguides for high-speed short-reach communication links", Proc. SPIE 10538, Optical Interconnects XVIII, 105380N (22 February 2018); https://doi.org/10.1117/12.2289737

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KEYWORDS

Waveguides

Polymers

Polymer multimode waveguides

Data transmission

Single mode fibers

Vertical cavity surface emitting lasers

Electronics

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