Optical pulse compression based on nonlinear silicon waveguides and chirped Bragg gratings

Ahmadipour, A.; Tezkhan, H.; Soofi, H.

doi:10.22061/jecei.2017.625

Document Type : Original Research Paper

Authors

School of Engineering- Emerging technologies, University of Tabriz, Tabriz, Iran

https://doi.org/10.22061/jecei.2017.625

Abstract

Due to the growing demand for higher bandwidth, employing optical devices instead of electronic devices in data transmission systems has attracted much attention in recent years. Optical switches, modulators and wavelength converters are a few examples of the required optical devices. CMOS compatible fabrication of these devices, leads to much more growing of this technology. Optical pulse compression, is required for generating ultra-short pulses for high bandwidth optical transmission systems. In this work, we present a CMOS fabrication process compatible, integrated optical pulse compressor. A Silicon waveguide coated by MoS₂ for nonlinearity enhancement is used for self-phase modulation and a chirped Bragg grating utilizing corrugated silicon waveguides is employed to achieve the required anomalous dispersion. Low power and high compression ratio were considered in this work. We achieved a compression ratio of 3.5 by using a relatively low power optical pulse of 8W and a short waveguide length of 1mm.

Graphical Abstract

Keywords

20.1001.1.23223952.2017.5.1.4.2

References

[1] R. Tucker, G. Eisenstein, and S. Korotky, “Optical time-division multiplexing for very high bit-rate transmission,” J. of Lightw. Technol., vol. 6, no. 11, pp. 1737-1749, 1988.

[2] Y. Luo, X. Zhou, F. Effenberger, X. Yan, G. Peng, Y. Qian, and Y. Ma, “Time- and wavelength-division multiplexed passive optical network (TWDM-PON) for next-generation PON stage 2 (NG-PON2),” J. of Lightw. Technol., vol. 31, no. 4, pp. 587-593, 2013.

[3] D. Huang, E. Swanson, C. Lin, J. Schuman, W. Stinson, W. Chang, M. Hee, T. Flotte, K. Gregory, C. Puliafito, and et al., “Optical coherence tomography,” Science, vol. 254, no. 5035, pp. 1178- 1181, 1991.

[4] W. Tomlinson, R. Stolen, and C. Shank, “Compression of optical pulses chirped by self-phase modulation in fibers,” J. of Opt. Soc. of Am. B, vol. 1, no. 2, p. 139, 1984.

[5] J. Travers, J. Stone, A. Rulkov, B. Cumberland, A. George, S. Popov, J. Knight, and J. Taylor, “Optical pulse compression in dispersion decreasing photonic crystal fiber,” Opt. Exp., vol. 15, no. 20, p. 13203, 2007.

[6] J. Fedeli, L. Di Cioccio, D. Marris-Morini, L. Vivien, R. Orobtchouk, P. Rojo-Romeo, C. Seassal, and F. Mandorlo, “Development of silicon photonics devices using microelectronic tools for the integration on top of a CMOS wafer,” Adv. in Opt. Technol., vol. 2008, pp. 1-15, 2008.

[7] S. Vasil'ev, O. Medvedkov, I. Korolev, A. Bozhkov, A. Kurkov, and E. Dianov, “Fibre gratings and their applications,” Quantum Electron., vol. 35, no. 12, pp. 1085-1103, 2005.

[8] K. Ikeda, M. Nezhad, and Y. Fainman, “Wavelength selective coupler with vertical gratings on silicon chip,” App. Phys. Lett., vol. 92, no. 20, p. 201111, 2008.

[9] D. Tan, K. Ikeda, and Y. Fainman, “Coupled chirped vertical gratings for on-chip group velocity dispersion engineering,” Appl. Phys. Lett., vol. 95, no. 14, p. 141109, 2009.

[10] D. Tan, P. Sun, and Y. Fainman, “Monolithic nonlinear pulse compressor on a silicon chip,” Nat. Comm., vol. 1, no. 8, p. 116, 2010.

[11] D. Tan, “Optical pulse compression on a silicon chip—Effect of group velocity dispersion and free carriers,” App. Phys. Lett., vol. 101, no. 21, p. 211112, 2012.

[12] L. Liu, K. Xu, X. Wan, J. Xu, C. Wong, and H. Tsang, “Enhanced optical Kerr nonlinearity of MoS2 on silicon waveguides,” Photon. Research, vol. 3, no. 5, p. 206, 2015.

[13] N. Hon, R. Soref, and B. Jalali, “The third-order nonlinear optical coefficients of Si, Ge, and Si1−xGex in the midwave and longwave infrared,” J. of App. Phys., vol. 110, no. 1, p. 011301, 2011.

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Journal of Electrical and Computer Engineering Innovations (JECEI)

Optical pulse compression based on nonlinear silicon waveguides and chirped Bragg gratings

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Volume 5, Issue 1 - Serial Number 9
January 2017
Pages 19-23

Optical pulse compression based on nonlinear silicon waveguides and chirped Bragg gratings

References

References

Send comment about this article

Volume 5, Issue 1 - Serial Number 9January 2017Pages 19-23

Volume 5, Issue 1 - Serial Number 9
January 2017
Pages 19-23