Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 30,
  • Issue 23,
  • pp. 3720-3726
  • (2012)

Dynamics and Frequency Response of Microring-Based Optical Modulator Considering Nonlinear Effects

Not Accessible

Your library or personal account may give you access

Abstract

In this paper, we analyze dynamics and frequency response of GaAs-based microring modulators at the 1.55 $\mu$m using the finite-difference time-domain method. Two types of modulation are investigated: pump-probe configuration and modulation of the coupling coefficient. The pump-probe signals are tuned at separate resonance wavelengths of the microring. Change of effective refractive index of the microring by two-photon absorption is used to modulate the probe beam. By applying probe beam in four timing configurations, it is shown that the wavelength shift of the probe depends not only on the pump intensity but also on the interaction length over which the pump and probe pulses overlap. It is also shown that free-carrier absorption increases when the temporal width of pump signal is wide enough. Modulation bandwidth of microring in the presence of nonlinear effects is investigated and it is shown that the bandwidth is in 10 GHz range. In order to increase the bandwidth of the intensity modulator, controlled coupling is used. It is shown that in this case, modulation bandwidth of waveguide-ring coupling strength becomes three times wider.

© 2012 IEEE

PDF Article
More Like This
Dynamics of microring resonator modulators

Wesley D. Sacher and Joyce K. S. Poon
Opt. Express 16(20) 15741-15753 (2008)

Ultrafast dynamic switching of optical response based on nonlinear hyperbolic metamaterial platform

Ze Tao Xie, Yanhua Sha, Jiaye Wu, H. Y. Fu, and Qian Li
Opt. Express 30(12) 21634-21648 (2022)

All-optical format conversions from NRZ to BPSK and QPSK based on nonlinear responses in silicon microring resonators

Yuanyuan Lu, Fangfei Liu, Min Qiu, and Yikai Su
Opt. Express 15(21) 14275-14282 (2007)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved