Compact filters and demultiplexers based on long-range air-hole assisted subwavelength waveguides | Zendy

Wen Zhou | Zendy; Xu Huang | Zendy

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Compact filters and demultiplexers based on long-range air-hole assisted subwavelength waveguides

Author(s) -

Wen Zhou,

Xu Huang

Publication year - 2013

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.21.028456

Subject(s) - demultiplexer , extinction ratio , optics , bandwidth (computing) , optical filter , multiplexing , wavelength , wavelength division multiplexing , materials science , waveguide , photonics , optoelectronics , physics , computer science , telecommunications , multiplexer

Compact filters and demultiplexers based on long-range air-hole assisted subwavelength (LR-AHAS) waveguides have been proposed and numerically demonstrated. The tunable reflective filters possess the characters of high extinction ratio (17.5dB) and narrow bandwidth (10.1nm). The average demultiplexing bandwidth of a 1 × 3 wavelength demultiplexer based on LR-AHAS waveguide is 17.3 nm. The drop efficiencies can be significantly enhanced up to 60% by employing proposed filters in the structure. With distinguished wavelength-filtering/dropping characters and compact footprints, the proposed filters and demultiplexers could become the fundamental signal processing components in the LR-AHAS waveguides for large-scale photonic integrations.

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