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Title: High density optical waveguide using hybrid spiral pattern

Abstract

A hybrid spiral waveguide geometry is proposed that exhibits essentially zero curvature (i.e., infinite bend radius) at the center of the spiral (similar to a Fermat spiral), with the curvature then increasing in value as the spiral moves outward. Advantageously, as the spiral moves away from the center, the spacing between adjacent waveguides quickly approaches a constant value (similar to an Archimedean spiral). This hybrid spiral structure has been found to allow for a high density waveguide to be created with lower loss and requiring a smaller size than many conventional spiral configurations and finds use in optical delay lines, amplifiers and arrayed waveguide gratings.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration
OSTI Identifier:
1650951
Patent Number(s):
10663662
Application Number:
16/397,624
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
DOE Contract Number:  
NA0003525
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/29/2019
Country of Publication:
United States
Language:
English

Citation Formats

Gehl, Michael, and DeRose, Christopher. High density optical waveguide using hybrid spiral pattern. United States: N. p., 2020. Web.
Gehl, Michael, & DeRose, Christopher. High density optical waveguide using hybrid spiral pattern. United States.
Gehl, Michael, and DeRose, Christopher. Tue . "High density optical waveguide using hybrid spiral pattern". United States. https://www.osti.gov/servlets/purl/1650951.
@article{osti_1650951,
title = {High density optical waveguide using hybrid spiral pattern},
author = {Gehl, Michael and DeRose, Christopher},
abstractNote = {A hybrid spiral waveguide geometry is proposed that exhibits essentially zero curvature (i.e., infinite bend radius) at the center of the spiral (similar to a Fermat spiral), with the curvature then increasing in value as the spiral moves outward. Advantageously, as the spiral moves away from the center, the spacing between adjacent waveguides quickly approaches a constant value (similar to an Archimedean spiral). This hybrid spiral structure has been found to allow for a high density waveguide to be created with lower loss and requiring a smaller size than many conventional spiral configurations and finds use in optical delay lines, amplifiers and arrayed waveguide gratings.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}

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Works referenced in this record:

Scalable, quantized, delay-line array based on nested, generalized spirals
patent, September 1999