Abstract
We design and demonstrate a new microring modulator geometry utilizing low-resistance
interior ridge contacts and a hard outer waveguide wall to achieve high-speed operation in a
device with a large free spectral range (FSR). The depletion-mode silicon microring modulator
utilizes a hybrid vertical–horizontal junction to maximize the frequency response for a given
voltage within a compact 2.5 μm radius. The 2.5-μm radius microring modulator demonstrates low
energy (4.5 fJ/bit) error-free (bit error rate <10
$^{-12}$
) operation for 30 Gb/s nonreturn-to-zero data transmission without utilizing
preemphasis or equalization. The modulator exhibits single mode operation over a wide, uncorrupted
FSR of 5.3 THz, the largest reported in a high-speed (>25 Gb/s) modulator. The resulting
combination of high-speed, low-energy operation, and a wide FSR offers the potential for very high
bandwidth densities in future femtojoule-class communication links.
© 2013 IEEE
PDF Article
More Like This
Adiabatic microring modulators
Aleksandr Biberman, Erman Timurdogan, William A. Zortman, Douglas C. Trotter, and Michael R. Watts
Opt. Express 20(28) 29223-29236 (2012)
C-band swept wavelength erbium-doped fiber laser with a high-Q tunable
interior-ridge silicon microring cavity
Nanxi Li, Erman Timurdogan, Christopher V. Poulton, Matthew Byrd, Emir Salih Magden, Zhan Su, Purnawirman, Gerald Leake, Douglas D. Coolbaugh, Diedrik Vermeulen, and Michael R. Watts
Opt. Express 24(20) 22741-22748 (2016)
Cited By
Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.