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Title: Low-loss and energy efficient modulation in silicon photonic waveguides by adiabatic elimination scheme

Abstract

High-speed Silicon Photonics calls for solutions providing a small footprint, high density, and minimum crosstalk, as exemplified by the recent development of integrated optical modulators. Yet, the performances of such modulators are hindered by intrinsic material losses, which results in low energy efficiency. Using the concept of Adiabatic Elimination, here, we introduce a scheme allowing for the low-loss modulation in densely packed waveguides. Our system is composed of two waveguides, whose coupling is mediated by an intermediate third waveguide. The signal is carried by the two outer modes, while the active control of their coupling is achieved via the intermediate dark mode. The modulation is performed by the manipulation of the central-waveguide mode index, leaving the signal-carrying waveguides unaffected by the loss. We discuss how Adiabatic Elimination provides a solution for mitigating signal losses and designing relatively compact, broadband, and energy-efficient integrated optical modulators.

Authors:
 [1];  [1];  [1];  [1];  [2]
  1. Univ. of California, Berkeley, CA (United States). Nanoscale Science and Engineering Center
  2. Univ. of California, Berkeley, CA (United States). Nanoscale Science and Engineering Center; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Light-Material Interactions in Energy Conversion (LMI)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1470413
Alternate Identifier(s):
OSTI ID: 1371796
Grant/Contract Number:  
SC0001293; AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 111; Journal Issue: 3; Related Information: LMI partners with California Institute of Technology (lead); Harvard University; University of Illinois, Urbana-Champaign; Lawrence Berkeley National Laboratory; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 42 ENGINEERING; solar (photovoltaic); solid state lighting; phonons; thermal conductivity; electrodes - solar; materials and chemistry by design; optics; synthesis (novel materials); synthesis (self-assembly)

Citation Formats

Mrejen, Michael, Suchowski, Haim, Bachelard, Nicolas, Wang, Yuan, and Zhang, Xiang. Low-loss and energy efficient modulation in silicon photonic waveguides by adiabatic elimination scheme. United States: N. p., 2017. Web. doi:10.1063/1.4994024.
Mrejen, Michael, Suchowski, Haim, Bachelard, Nicolas, Wang, Yuan, & Zhang, Xiang. Low-loss and energy efficient modulation in silicon photonic waveguides by adiabatic elimination scheme. United States. doi:10.1063/1.4994024.
Mrejen, Michael, Suchowski, Haim, Bachelard, Nicolas, Wang, Yuan, and Zhang, Xiang. Mon . "Low-loss and energy efficient modulation in silicon photonic waveguides by adiabatic elimination scheme". United States. doi:10.1063/1.4994024. https://www.osti.gov/servlets/purl/1470413.
@article{osti_1470413,
title = {Low-loss and energy efficient modulation in silicon photonic waveguides by adiabatic elimination scheme},
author = {Mrejen, Michael and Suchowski, Haim and Bachelard, Nicolas and Wang, Yuan and Zhang, Xiang},
abstractNote = {High-speed Silicon Photonics calls for solutions providing a small footprint, high density, and minimum crosstalk, as exemplified by the recent development of integrated optical modulators. Yet, the performances of such modulators are hindered by intrinsic material losses, which results in low energy efficiency. Using the concept of Adiabatic Elimination, here, we introduce a scheme allowing for the low-loss modulation in densely packed waveguides. Our system is composed of two waveguides, whose coupling is mediated by an intermediate third waveguide. The signal is carried by the two outer modes, while the active control of their coupling is achieved via the intermediate dark mode. The modulation is performed by the manipulation of the central-waveguide mode index, leaving the signal-carrying waveguides unaffected by the loss. We discuss how Adiabatic Elimination provides a solution for mitigating signal losses and designing relatively compact, broadband, and energy-efficient integrated optical modulators.},
doi = {10.1063/1.4994024},
journal = {Applied Physics Letters},
number = 3,
volume = 111,
place = {United States},
year = {2017},
month = {7}
}

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