Open AccessGeneration of amplitude-shift-keying optical signals using silicon microring resonators
Author(s) -
Karthik Narayanan,
Stefan F. Preble
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.005015
Subject(s) - resonator , amplitude shift keying , optics , modulation (music) , silicon photonics , keying , photonics , ultrashort pulse , physics , amplitude modulation , optoelectronics , phase shift keying , computer science , bit error rate , frequency modulation , telecommunications , laser , radio frequency , decoding methods , acoustics
We demonstrate the generation of amplitude-shift-keying (ASK) optical signals using a system of parallel microring resonators. By independently modulating two symmetric microring resonators arranged in a Mach-Zehnder configuration, we realize the generation of three levels. The proposed scheme can be extended to any number of logic levels, which effectively increases the data rate of an optical link using slower modulators. Here, we separately utilize thermo-optic and ultrafast all-optical modulation schemes to generate ASK signals on a silicon photonic chip.