DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Silicon photonic switch-based optical equalization for mitigating pulsewidth distortion

Journal Article · · Optics Express

Optical transmitters typically require electrical pre-amplification using driver amplifiers to optimize the optical modulation depth. To enhance the detection sensitivity and optimize the overall link budget, equalization is required to compensate for undesired signal distortion induced by the transmitter. In this paper, we propose and demonstrate a novel optical equalization scheme using a silicon photonic micro-ring resonator (MRR)-based switching circuit for mitigating driver-amplifier-induced pulsewidth distortion. The switching circuit simultaneously functions as a spatial optical switch as well as a two-stage optical bandpass filter for optical equalization. The experimental results indicate a 4.5-dB detection sensitivity enhancement at a data rate of 12.5 Gbits/s. The proposed approach is robust to different levels of pulsewidth distortion without additional signal processing, and has possibilities to support higher data rates by adjusting the MRR parameters.

Research Organization:
Columbia Univ., New York, NY (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Grant/Contract Number:
AR0000843
OSTI ID:
1529665
Alternate ID(s):
OSTI ID: 1613733
Journal Information:
Optics Express, Vol. 27, Issue 14; ISSN 1094-4087
Publisher:
Optical Society of America (OSA)Copyright Statement
Country of Publication:
United States
Language:
English

References (24)

Silicon microring resonators journal September 2011
Low-Power 56Gb/s NRZ Microring Modulator Driver in 28nm FDSOI CMOS journal March 2018
Design Space Exploration of Microring Resonators in Silicon Photonic Interconnects: Impact of the Ring Curvature journal July 2018
All-Optical Programmable Disaggregated Data Centre Network Realized by FPGA-Based Switch and Interface Card journal April 2016
Optical 4x4 hitless slicon router for optical networks-on-chip (NoC) journal January 2008
A highly-scalable, rapidly-reconfigurable, multicasting-capable, 100-Gb/s photonic switched interconnect based upon OTDM technology journal January 2000
Scalable Microring-Based Silicon Clos Switch Fabric With Switch-and-Select Stages journal September 2019
Thermal Rectification of Integrated Microheaters for Microring Resonators in Silicon Photonics Platform journal February 2018
Performance and Power Dissipation Comparisons Between 28 Gb/s NRZ, PAM, CAP and Optical OFDM Systems for Data Communication Applications journal October 2012
Demonstration of a deflection routing 2*2 photonic switch for computer interconnects journal February 1992
Photonic switching in high performance datacenters [Invited] journal January 2018
Evaluation of Real-Time 8 × 56.25 Gb/s (400G) PAM-4 for Inter-Data Center Application Over 80 km of SSMF at 1550 nm journal February 2017
High-Speed 1550 nm VCSEL Data Transmission Link Employing 25 GBd 4-PAM Modulation and Hard Decision Forward Error Correction journal February 2013
Ultralow-crosstalk, strictly non-blocking microring-based optical switch journal January 2019
Reach extension in 10-Gb/s directly modulated transmission systems using asymmetric and narrowband optical filtering journal January 2005
Pseudo noise sequences for engineers journal April 1996
Ultra-efficient 10Gb/s hybrid integrated silicon photonic transmitter and receiver journal January 2011
Thermal stabilization of a microring modulator using feedback control journal January 2012
Wavelength tuning and stabilization of microring-based filters using silicon in-resonator photoconductive heaters journal January 2015
Recent advances in optical technologies for data centers: a review journal January 2018
Bandwidth and wavelength tunable optical passband filter based on silicon multiple microring resonators journal January 2016
38.5 km error free transmission at 10 Gbit/s in standard fibre using a low chirp, spectrally filtered, directly modulated 1.55 [micro sign]m DFB laser journal January 1997
400 Gigabit Ethernet using advanced modulation formats: Performance, complexity, and power dissipation journal February 2015
Wavelength-Offset Filtering in Optical OFDM IMDD Systems Using Directly Modulated DFB Lasers journal September 2011