Grating Structures for Simultaneous Coupling to TE and TM Waveguide Modes

Disclosed are an integrated optical coupler, and a method of optically coupling light, between an optical element and at least one integrated optical waveguide. The optical coupler includes a grating structure and is adapted for coupling light to waveguide modes with different polarization with low polarization dependent loss. For example, polarization dependent loss may be smaller than 0.5 dB. The waveguide modes may include a Transverse Electric (TE) waveguide mode and a Transverse Magnetic (TM) waveguide mode. The optical coupler may further include a two-dimensional grating structure adapted for providing polarization splitting for a first optical signal of a first predetermined wavelength and for coupling both polarizations forward or backward.

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Patents:
US 20,100,322,555

Inventor(s): VERMEULEN DIEDRIK [BE]; ROELKENS GUNTHER [BE]; VAN THOURHOUT DRIES [BE]

Type of Offer: Sale



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