期刊
OPTICS EXPRESS
卷 22, 期 1, 页码 817-823出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.22.000817
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资金
- 973 program [ID2011CB301700]
- 863 program [2013AA014402]
- National Natural Science Foundation of China (NSFC) [61007039, 61001074, 61127016]
- Science and Technology Commission of Shanghai Municipality (STCSM) Project [12XD1406400]
We present a reflective-type optical delay line using waveguide side-coupled 13 microring resonators terminated with a sagnac loop reflector. Light passes through the microring resonator sequence twice, doubling the delay-bandwidth product. Group delay is tuned by p-i-p type microheaters integrated directly in the microring waveguides. Experiment demonstrates that the delay line can potentially buffer 18 bits and the delay can be continuously tuned for 100 ps with a power tuning efficiency of 0.34 ps/mW. Eye diagrams of a 20-Gbps PRBS signal after 10 and 110 ps delays are also examined. (C) 2014 Optical Society of America
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