UV-written long-period waveguide grating coupler for broadband add/drop multiplexing

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Original languageEnglish
Pages (from-to)378-381
Journal / PublicationOptics Communications
Issue number3
Publication statusPublished - 1 Feb 2009


We demonstrate a UV-written polymer long-period waveguide grating (LPWG) coupler, which offers a bandwidth of ∼20 nm, a maximum coupling efficiency of ∼80% and ∼60% for the TE and TM polarizations, respectively, and a wavelength-tuning range over the (S + C + L)-band (∼140 nm) with a temperature control of ∼25 °C. The LPWG coupler has the potential to be developed into a practical broadband add/drop multiplexer for coarse wavelength-division-multiplexing applications. © 2008 Elsevier B.V. All rights reserved.

Research Area(s)

  • Integrated optics, Long-period waveguide grating (LPWG), Optical coupler, Optical waveguide, Polymer waveguide, UV-writing