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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 10 — May. 15, 2007
  • pp: 1299–1301

Polarizing beam splitter of a deep-etched fused-silica grating

Bo Wang, Changhe Zhou, Shunquan Wang, and Jijun Feng  »View Author Affiliations

Optics Letters, Vol. 32, Issue 10, pp. 1299-1301 (2007)

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We described a highly efficient polarizing beam splitter (PBS) of a deep-etched binary-phase fused-silica grating, where TE- and TM-polarized waves are mainly diffracted in the 1 st and 0th orders, respectively. To achieve a high extinction ratio and diffraction efficiency, the grating depth and period are optimized by using rigorous coupled-wave analysis, which can be well explained based on the modal method with effective indices of the modes for TE/TM polarization. Holographic recording technology and inductively coupled plasma etching are employed to fabricate the fused-silica PBS grating. Experimental results of diffraction efficiencies approaching 80% for a TE-polarized wave in the 1 st order and more than 85% for a TM-polarized wave in the 0th order were obtained at a wavelength of 1550 nm . Because of its compact structure and simple fabrication process, which is suitable for mass reproduction, a deep-etched fused-silica grating as a PBS should be a useful device for practical applications.

© 2007 Optical Society of America

OCIS Codes
(050.1950) Diffraction and gratings : Diffraction gratings
(060.4510) Fiber optics and optical communications : Optical communications
(230.1360) Optical devices : Beam splitters
(230.5440) Optical devices : Polarization-selective devices

ToC Category:
Optical Devices

Original Manuscript: December 12, 2006
Revised Manuscript: February 4, 2007
Manuscript Accepted: February 9, 2007
Published: April 17, 2007

Bo Wang, Changhe Zhou, Shunquan Wang, and Jijun Feng, "Polarizing beam splitter of a deep-etched fused-silica grating," Opt. Lett. 32, 1299-1301 (2007)

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