Integrated polarization splitter and rotator including a third region for tuning the polarization dependent loss of output transverse electric signals

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United States of America Patent

PATENT NO 9874696
SERIAL NO

15048107

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Abstract

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An integrated polarization splitter and rotator (PSR) employs the TE0 and TE1 modes of propagating light, rather than the TE0 and TM0 modes used in conventional prior art PSR. The integrated PSR exhibits appreciably flatter wavelength response because it does not require a directional coupler to de-multiplex incoming polarizations. The PSR allows tuning of the TM0 loss to reduce polarization dependent loss (PDL). This integrated polarization splitter and rotator is applicable to all integrated platforms including Silicon-on-Insulator (SOI) and III-V semiconductor compound systems. The PSR may be very compact (12×2 μm2), and provides low loss (<0.3 dB across the C-band) and ultra-broadband operation. The PSR also affords better control of polarization dependent losses.

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Patent Owner(s)

Patent OwnerAddress
NOKIA SOLUTIONS AND NETWORKS OYESPOO FINLAND ESPOO SOUTHERN FINLAND

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hochberg, Michael J New York, US 140 1799
Liu, Yang Elmhurst, US 1941 7962
Ma, Yangjin Brooklyn, US 57 391

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