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Optics Letters

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  • Vol. 36, Iss. 20 — Oct. 15, 2011
  • pp: 4047–4049

Ultracompact and fabrication-tolerant integrated polarization splitter

A. Hosseini, S. Rahimi, X. Xu, D. Kwong, J. Covey, and R. T. Chen  »View Author Affiliations


Optics Letters, Vol. 36, Issue 20, pp. 4047-4049 (2011)
http://dx.doi.org/10.1364/OL.36.004047


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Abstract

Design and fabrication of a 2 × 2 two-mode interference (TMI) coupler based on-chip polarization splitter is presented. By changing the angle between the access waveguides, one can tune the effective TMI length for the mode with less optical confinement (transverse magnetic, TM) to coincide with the target TMI length for a desired transmission of the mode with higher optical confinement (transverse electric, TE). The fabricated 0.94 μm long 2 × 2 TMI splits the input power into TM (bar) and TE (cross) outputs with splitting ratio over 15 dB over 50 nm bandwidth. Fabrication tolerance analysis shows that the device is tolerant to fabrication errors as large as 60 nm .

© 2011 Optical Society of America

OCIS Codes
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices

ToC Category:
Integrated Optics

History
Original Manuscript: July 26, 2011
Revised Manuscript: September 5, 2011
Manuscript Accepted: September 5, 2011
Published: October 12, 2011

Citation
A. Hosseini, S. Rahimi, X. Xu, D. Kwong, J. Covey, and R. T. Chen, "Ultracompact and fabrication-tolerant integrated polarization splitter," Opt. Lett. 36, 4047-4049 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-20-4047


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