Patent ID: 9019612
Filing Date: 2015-04-28
Classification: G02B

Abstract:
1. A method for directing wavelength components of an optical beam from an input port of a port array to at least one output port of the port array, comprising: receiving a plurality of optical beams at a plurality of ports; arranging the plurality of optical beams received by the plurality of ports into a first polarization state; spatially separating each of the optical beams into first and second optical beams; magnifying each of the first and second optical beams with different magnification factors in each of two orthogonal directions defined by a first and second direction; spatially separating the wavelength components in each of the first and second optical beams in the second direction; directing the spatially separated wavelength components onto an LCoS element to create a plurality of astigmatic beams on the LCoS element; and using the LCoS element to selectively direct the astigmatic optical beams to selected ones of the ports.