Polarization division multiplexing for optical data communications

Darko Ivanovich, Samuel B. Powell, Viktor Gruev, Roger D. Chamberlain

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Multiple parallel channels are ubiquitous in optical communications, with spatial division multiplexing (separate physical paths) and wavelength division multiplexing (separate optical wavelengths) being the most common forms. Here, we investigate the viability of polarization division multiplexing, the separation of distinct parallel optical communication channels through the polarization properties of light. Two or more linearly polarized optical signals (at different polarization angles) are transmitted through a common medium, filtered using aluminum nanowire optical filters fabricated on-chip, and received using individual silicon photodetectors (one per channel). The entire receiver (including optics) is compatible with standard CMOS fabrication processes. The filter model is based upon an input optical signal formed as the sum of the Stokes vectors for each individual channel, transformed by the Mueller matrix that models the filter proper, resulting in an output optical signal that impinges on each photodiode. The results show that two-And three-channel systems can operate with a fixed-Threshold comparator in the receiver circuit, but four-channel systems (and larger) will require channel coding of some form. For example, in the four-channel system, 10 of 16 distinct bit patterns are separable by the receiver. The model supports investigation of the range of variability tolerable in the fabrication of the on-chip polarization filters.

Original languageEnglish (US)
Title of host publicationOptical Interconnects XVIII
EditorsHenning Schroder, Ray T. Chen
PublisherSPIE
ISBN (Electronic)9781510615618
DOIs
StatePublished - 2018
EventOptical Interconnects XVIII 2018 - San Francisco, United States
Duration: Jan 29 2018Jan 31 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10538
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherOptical Interconnects XVIII 2018
CountryUnited States
CitySan Francisco
Period1/29/181/31/18

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Ivanovich, D., Powell, S. B., Gruev, V., & Chamberlain, R. D. (2018). Polarization division multiplexing for optical data communications. In H. Schroder, & R. T. Chen (Eds.), Optical Interconnects XVIII [105381D] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10538). SPIE. https://doi.org/10.1117/12.2290452