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Title: Lightwave Circuits in Lithium Niobate through Hybrid Waveguides with Silicon Photonics

Here, we demonstrate a photonic waveguide technology based on a two-material core, in which light is controllably and repeatedly transferred back and forth between sub-micron thickness crystalline layers of Si and LN bonded to one another, where the former is patterned and the latter is not. In this way, the foundry-based wafer-scale fabrication technology for silicon photonics can be leveraged to form lithium-niobate based integrated optical devices. Using two different guided modes and an adiabatic mode transition between them, we demonstrate a set of building blocks such as waveguides, bends, and couplers which can be used to route light underneath an unpatterned slab of LN, as well as outside the LN-bonded region, thus enabling complex and compact lightwave circuits in LN alongside Si photonics with fabrication ease and low cost.
Authors:
 [1] ;  [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [3] ;  [1]
  1. Univ. of California, San Diego, CA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. SRICO Inc., Columbus, OH (United States)
Publication Date:
Report Number(s):
SAND-2016-6437J
Journal ID: ISSN 2045-2322; srep22301
Grant/Contract Number:
AC04-94AL85000; ECCS 1307514
Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 6; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; Integrated optics; Silicon photonics; 36 MATERIALS SCIENCE; integrated optics; silicon photonics
OSTI Identifier:
1261098
Alternate Identifier(s):
OSTI ID: 1262310

Weigel, Peter O., Savanier, Marc, DeRose, Christopher T., Pomerene, Andrew T., Starbuck, Andrew L., Lentine, Anthony L., Stenger, Vincent, and Mookherjea, Shayan. Lightwave Circuits in Lithium Niobate through Hybrid Waveguides with Silicon Photonics. United States: N. p., Web. doi:10.1038/srep22301.
Weigel, Peter O., Savanier, Marc, DeRose, Christopher T., Pomerene, Andrew T., Starbuck, Andrew L., Lentine, Anthony L., Stenger, Vincent, & Mookherjea, Shayan. Lightwave Circuits in Lithium Niobate through Hybrid Waveguides with Silicon Photonics. United States. doi:10.1038/srep22301.
Weigel, Peter O., Savanier, Marc, DeRose, Christopher T., Pomerene, Andrew T., Starbuck, Andrew L., Lentine, Anthony L., Stenger, Vincent, and Mookherjea, Shayan. 2016. "Lightwave Circuits in Lithium Niobate through Hybrid Waveguides with Silicon Photonics". United States. doi:10.1038/srep22301. https://www.osti.gov/servlets/purl/1261098.
@article{osti_1261098,
title = {Lightwave Circuits in Lithium Niobate through Hybrid Waveguides with Silicon Photonics},
author = {Weigel, Peter O. and Savanier, Marc and DeRose, Christopher T. and Pomerene, Andrew T. and Starbuck, Andrew L. and Lentine, Anthony L. and Stenger, Vincent and Mookherjea, Shayan},
abstractNote = {Here, we demonstrate a photonic waveguide technology based on a two-material core, in which light is controllably and repeatedly transferred back and forth between sub-micron thickness crystalline layers of Si and LN bonded to one another, where the former is patterned and the latter is not. In this way, the foundry-based wafer-scale fabrication technology for silicon photonics can be leveraged to form lithium-niobate based integrated optical devices. Using two different guided modes and an adiabatic mode transition between them, we demonstrate a set of building blocks such as waveguides, bends, and couplers which can be used to route light underneath an unpatterned slab of LN, as well as outside the LN-bonded region, thus enabling complex and compact lightwave circuits in LN alongside Si photonics with fabrication ease and low cost.},
doi = {10.1038/srep22301},
journal = {Scientific Reports},
number = ,
volume = 6,
place = {United States},
year = {2016},
month = {3}
}