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Sacher WD, Green WM, Gill DM, et al. Binary phase-shift keying by coupling modulation of microrings. Opt Express. 2014;22(17):20252-9doi: 10.1364/OE.22.020252.
Sacher, W. D., Green, W. M., Gill, D. M., Assefa, S., Barwicz, T., Khater, M., Kiewra, E., Reinholm, C., Shank, S. M., Vlasov, Y. A., & Poon, J. K. (2014). Binary phase-shift keying by coupling modulation of microrings. Optics express, 22(17), 20252-9. https://doi.org/10.1364/OE.22.020252
Sacher, Wesley D, et al. "Binary phase-shift keying by coupling modulation of microrings." Optics express vol. 22,17 (2014): 20252-9. doi: https://doi.org/10.1364/OE.22.020252
Sacher WD, Green WM, Gill DM, Assefa S, Barwicz T, Khater M, Kiewra E, Reinholm C, Shank SM, Vlasov YA, Poon JK. Binary phase-shift keying by coupling modulation of microrings. Opt Express. 2014 Aug 25;22(17):20252-9. doi: 10.1364/OE.22.020252. PMID: 25321234.
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Opt Express. 2014 Aug 25;22(17):20252-9. doi: 10.1364/OE.22.020252.

Binary phase-shift keying by coupling modulation of microrings.

Optics express

Wesley D Sacher, William M J Green, Douglas M Gill, Solomon Assefa, Tymon Barwicz, Marwan Khater, Edward Kiewra, Carol Reinholm, Steven M Shank, Yurii A Vlasov, Joyce K S Poon

PMID: 25321234 DOI: 10.1364/OE.22.020252

Abstract

We propose a coupling-modulated microring in an add-drop configuration for binary phase-shift keying (BPSK), where data is encoded as 0 and π radian phase-shifts on the optical carrier. The device uses the π radian phase-flip across the zero coupling point in a 2 × 2 Mach-Zehnder interferometer coupler to produce the modulation. The coupling-modulated microring combines the drive power reduction of resonant modulators with the digital phase response of Mach-Zehnder BPSK modulators. A proof-of-concept device was demonstrated in silicon-on-insulator, showing differential binary phase-shift keying operation at 5 and 10 Gb/s.

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