Title :
Internal Bandwidth Equalization in a CMOS-Compatible Si-Ring Modulator
Author :
Gill, Douglas M. ; Rasras, Mahmoud ; Tu, Kun-Yii ; Chen, Young-Kai ; White, Alice E. ; Patel, Sanjay S. ; Carothers, Daniel ; Pomerene, Andrew ; Kamocsai, Robert ; Hill, Craig ; Beattie, James
Author_Institution :
Bell Labs., Murray Hill, NJ
Abstract :
Bandwidth equalization using a simple complementary metal-oxide-semiconductor-compatible tunable silicon-ring modulator is shown. We demonstrate >35-GHz small signal bandwidth and use the resonator to mitigate bandwidth limitations from other measurement system components. Configuring the optical carrier to be off resonance within the ring free-spectral range allows high-frequency enhancement and low-frequency suppression of the S21 parameter to achieve system response equalization. Our results suggest that the carrier and modulation sidebands can have very different transient characteristics within the ring modulator.
Keywords :
CMOS integrated circuits; Mach-Zehnder interferometers; electro-optical modulation; elemental semiconductors; integrated optics; optical resonators; optical tuning; silicon; CMOS-compatible tunable silicon-ring modulator; Mach-Zender interferometer; Si; complementary metal-oxide-semiconductor; internal bandwidth equalization; optical carrier configuration; optical resonator; ring free-spectral range; sideband transient characteristics; Fiber-optics communications; integrated optics devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.2009943
