Dispersion compensation of high-speed data using an integrated silicon nitride ring resonator

Abstract

Dispersion impairments are a well-known limitation in data center communications, limiting both the usable data rates and reaches. Several companies today adopt silicon photonics as a core technology in their transceiver products. This presents an opportunity for silicon photonics-based dispersion management technologies to be integrated with the transceiver transmitter or receiver. In this manuscript, we present a ring-resonator based, tunable dispersion compensation device, providing dispersion ranging as wide from + 12.9 × 103ps/nm to −12.3 × 103ps/nm. Thermo-optic tuning from 20°C to 70°C is demonstrated to allow continuous wavelength tuning across 200 GHz. High-speed experiments using 25 Gb/s non-return-to-zero data propagating through 20 km of single mode fiber show that a significant improvement in the eye diagram is achieved after compensation with the ring-resonator device. We demonstrate a significant improvement in the BER from 10−3 to 10−11 for data rates of 25 and 25.78125 Gb/s.

Parallel wavelength-division-multiplexed signal transmission and dispersion compensation enabled by soliton microcombs and microrings

“…In recent years, the adoption of silicon photonics facilitated the integration of various silicon-based photonic devices, including chirped Bragg gratings 30 – 34 , Mach-Zehnder interferometers (MZIs) 35 , 36 , and microring resonators (MRRs) 37 – 43 , to effectively mitigate the impact of CD in SMFs. These integrated devices offer several advantages, including a compact form factor, cost efficiency, low power consumption, and high reconfigurability.…”

Parallel Wavelength-Division-Multiplexed Signal Transmission and Dispersion Compensation Enabled by Soliton Microcombs and Microrings

“…In recent years, the adoption of silicon photonics facilitated the integration of various siliconbased photonic devices, including chirped Bragg gratings [33][34][35][36][37] , Mach-Zehnder interferometers (MZIs) 38,39 , and microring resonators (MRRs) [40][41][42][43][44][45][46] , to effectively mitigate the impact of CD in singlemode fibers (SMFs). These integrated devices offer several advantages, including a compact form factor, cost efficiency, a low power consumption, and a high reconfigurability.…”