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Opt Lett. 2014 Feb 15;39(4):965-8. doi: 10.1364/OL.39.000965.

Four-port integrated polarizing beam splitter.

Abstract

In this Letter, we report on the first integrated four-port polarizing beam splitter. The device operates on the principle of mode evolution and was implemented in a silicon-on-insulator silicon photonics platform and fabricated on a 300 mm CMOS line using 193 nm optical immersion lithography. The adiabatic transition forming of the structure enabled over a 150 nm bandwidth from λ~1350 to λ~1500  nm, achieving a cross-talk level below -10  dB over the entire band.

PMID:
24562253
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