Abstract
A microring-based silicon modulator operating at 40 Gb/s near 1310 nm is demonstrated for the first time to our knowledge. NRZ-OOK signals at 40 Gb/s with 6.2 dB extinction ratio are observed by applying a 4.8 Vpp driving voltage and biasing the modulator at 7 dB insertion loss point. The energy efficiency is 115 fJ/bit. The transmission performance of 40 Gb/s NRZ-OOK through 40 km of standard single mode fiber without dispersion compensation is also investigated. We show that the link suffers negligible dispersion penalty. This makes the modulator a potential candidate for metro network applications.
Highlights
Silicon photonics offers a promising solution to meet the ever-growing bandwidth requirements of chip-to-chip, data center, and telecom applications
At 1550 nm standard single mode fibers (SSMF) exhibit strong chromatic dispersion (CD) [9], high data rate (25 Gb/s and higher) direct-detected on-off keying (OOK) transmission is limited to short distance links [10] if not equipped with CD controls
We have demonstrated a traveling wave Mach–Zehnder modulator working near 1300nm recently [12]
Summary
Silicon photonics offers a promising solution to meet the ever-growing bandwidth requirements of chip-to-chip, data center, and telecom applications. “44-Gb/s Silicon Microring Modulators Based on Zigzag PN Junctions,” IEEE Photon. Lipson, “Cascaded silicon micro-ring modulators for WDM optical interconnection,” Opt. Express 14(20), 9431–9435 (2006). M. Osgood, Jr., “Fundamental limitations of optical resonator based high-speed EO modulators,” IEEE Photon.
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