Polarisation rotation Bragg grating with high diffraction efficiency using Si waveguide top surface groove grating. Issue 23 (1st November 2015)

• Record Type: Journal Article
• Authors: Okayama, H.; Onawa, Y.; Shimura, D.; Yaegashi, H.; Sasaki, H.
• Is Part Of: Electronics letters. Volume 51:Issue 23(2015)
• Page Start: 1909
• Page End: 1911
• Publication Date: 2015-11-01
• Subjects: optical rotation -- Bragg gratings -- optical waveguide filters -- optical couplers -- silicon -- rib waveguides; polarisation rotation Bragg grating -- high diffraction efficiency -- Si waveguide top surface groove grating -- polarisation‐independent Bragg grating wavelength filter -- antisymmetric grating structure -- polarisation rotation Bragg diffraction -- Si; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2015.2639
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : Polarisation‐independent Bragg grating wavelength filter with high diffraction efficiency using silicon waveguide is reported. An antisymmetric grating structure with groove at the top surface of the waveguide is used to generate the polarisation rotation Bragg diffraction. The concept was verified by simulation. Polarisation‐independent bandpass filter consisting of 3 dB coupler and polarisation rotation Bragg diffraction was experimentally demonstrated.