publication . Article . 2014

Ultra-Broadband Silicon-Wire Polarization Beam Combiner/Splitter Based on a Wavelength Insensitive Coupler With a Point-Symmetrical Configuration

Uematsu, Takui; Kitayama, Tetsuya; Ishizaka, Yuhei; Saitoh, Kunimasa;
Open Access English
  • Published: 01 Feb 2014 Journal: IEEE photonics journal, volume 6, issue 1, page 4,500,108 (issn: 1943-0655, Copyright policy)
  • Publisher: IEEE
Abstract
An ultrabroadband silicon wire polarization beam combiner/splitter (PBCS) based on a wavelength-insensitive coupler is proposed. The proposed PBCS consists of three identical directional couplers and two identical delay lines. We design the PBCS using the 3-D finite element method. Numerical simulations show that the proposed PBCS can achieve the transmittance of more than 90% over a wide wavelength range from 1450 to 1650 nm for both TE and TM polarized modes.
Subjects
free text keywords: Silicon nanophotonics, waveguide devices, finite element methods
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Article . 2014
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