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

Volume

21

Issue

4

fYear

2009

Firstpage

200

Lastpage

202

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2008.2009943

Filename

4695969