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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 12 — Jun. 15, 2007
  • pp: 1662–1664

Polarization beam splitter using a binary blazed grating coupler

Junbo Feng and Zhiping Zhou  »View Author Affiliations


Optics Letters, Vol. 32, Issue 12, pp. 1662-1664 (2007)
http://dx.doi.org/10.1364/OL.32.001662


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Abstract

A novel polarization beam splitter using a two-layer grating coupler is proposed and demonstrated. It can directly couple the normally incident light from fiber into two separate waveguides according to their polarization states while splitting them. It realizes high coupling efficiency and a good extinction ratio by using binary blazed grating couplers. The coupling length is less than 14 μ m . The extinction ratio is better than 20 dB for both polarizations over a 40 nm wavelength range, and the coupling efficiencies for the two layers are 58% and 50%.

© 2007 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(230.1360) Optical devices : Beam splitters
(230.5440) Optical devices : Polarization-selective devices

ToC Category:
Optical Devices

History
Original Manuscript: October 27, 2006
Revised Manuscript: March 22, 2007
Manuscript Accepted: April 18, 2007
Published: June 5, 2007

Citation
Junbo Feng and Zhiping Zhou, "Polarization beam splitter using a binary blazed grating coupler," Opt. Lett. 32, 1662-1664 (2007)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-32-12-1662

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