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Title: Adiabatic/diabatic polarization beam splitter

The various presented herein relate to an on-chip polarization beam splitter (PBS), which is adiabatic for the transverse magnetic (TM) mode and diabatic for the transverse electric (TE) mode. The PBS comprises a through waveguide and a cross waveguide, wherein an electromagnetic beam comprising TE mode and TM mode components is applied to an input port of the through waveguide. The PBS can be utilized to separate the TE mode component from the TM mode component, wherein the TE mode component exits the PBS via an output port of the through waveguide, and the TM mode component exits the PBS via an output port of the cross waveguide. The PBS has a structure that is tolerant to manufacturing variations and exhibits high polarization extinction ratios over a wide bandwidth.
Issue Date:
OSTI Identifier:
National Technology & Engineering Solutions of Sandia, LLC SNL-A
Patent Number(s):
Application Number:
Contract Number:
Resource Relation:
Patent File Date: 2016 Oct 10
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
Country of Publication:
United States

Other works cited in this record:

Broadband silicon nitride polarization beam splitter
patent, June 2016

Polarization Beam Splitter
patent-application, May 2014

Ultra compact 45 GHz CMOS compatible Germanium waveguide photodiode with low dark current
journal, January 2011
  • DeRose, Christopher T.; Trotter, Douglas C.; Zortman, William A.
  • Optics Express, Vol. 19, Issue 25, p. 24897-24904
  • DOI: 10.1364/OE.19.024897

Silicon photonics platform for national security applications
conference, March 2015

Wideband silicon photonic polarization beamsplitter based on point-symmetric cascaded broadband couplers
journal, January 2015
  • Lu, Zeqin; Wang, Yun; Zhang, Fan
  • Optics Express, Vol. 23, Issue 23, p. 29413-29422
  • DOI: 10.1364/OE.23.029413

Four-port integrated polarizing beam splitter
journal, January 2014
  • Su, Zhan; Timurdogan, Erman; Hosseini, Ehsan Shah
  • Optics Letters, Vol. 39, Issue 4, p. 965-968
  • DOI: 10.1364/OL.39.000965

Adiabatic thermo-optic Mach–Zehnder switch
journal, January 2013
  • Watts, Michael R.; Sun, Jie; DeRose, Christopher
  • Optics Letters, Vol. 38, Issue 5, p. 733-735
  • DOI: 10.1364/OL.38.000733

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