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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 26, Iss. 23 — Dec. 1, 2008
  • pp: 3744–3751

System Performances of On-Chip Silicon Microring Delay Line for RZ, CSRZ, RZ-DB and RZ-AMI Signals

Qiang Li, Fangfei Liu, Ziyang Zhang, Min Qiu, and Yikai Su

Journal of Lightwave Technology, Vol. 26, Issue 23, pp. 3744-3751 (2008)


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Abstract

We theoretically study the group-delay characteristics of a silicon microring resonator based on the coupled mode theory, and experimentally demonstrate error-free operations of an on-chip delay line using a silicon-on-insulator (SOI) microring resonator with a 20-$\mu{\hbox {m}}$ radius. Four signals of different modulation formats are examined at 5 Gb/s, including return-to-zero (RZ), carrier-suppressed return-to-zero (CSRZ), return-to-zero duobinary (RZ-DB), and return-to-zero alternate-mark-inversion (RZ-AMI). Bit error rate (BER) measurements show that the maximal delay times with error-free operations are 80, 95, 110, and 65 ps, respectively, corresponding to a fractional group delay of $\sim$0.4, $\sim$0.5, $\sim$0.55, and $\sim$0.35. The differences in delay and signal degradations have been investigated based on the signal spectra and pattern dependences. Although the delays are demonstrated in a single ring resonator, the analysis is applicable in slow-light resonance structures such as all-pass filters (APF) and coupled resonator optical waveguides (CROW).

© 2008 IEEE

Citation
Qiang Li, Fangfei Liu, Ziyang Zhang, Min Qiu, and Yikai Su, "System Performances of On-Chip Silicon Microring Delay Line for RZ, CSRZ, RZ-DB and RZ-AMI Signals," J. Lightwave Technol. 26, 3744-3751 (2008)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-26-23-3744

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