Patent ID: 8854597

Claim:
An optical device having multiple input and output ports, comprising: a light diffracting element positioned in an optical path of optical signals comprising a first optical signal transmitted through a first input port and a second optical signal transmitted through a second input port, the light diffracting element separating the optical signals into wavelength components; and first and second arrays of independently controlled reflective beam steering elements, each beam steering element of the first array being independently controlled to direct one of the wavelength components to a selected one of the beam steering elements of the second array, each beam steering element of the second array being independently controlled to direct the wavelength component incident thereon to a selected one of the output ports, a wavelength component of the first optical signal and a wavelength component of the second optical signal are combinable to produce an output optical signal at a selected one of the output ports, wherein at least one of the beam steering elements in at least one of the first and second arrays being configured to attenuate at least one wavelength component by directing the at least one wavelength component with a beam-steering angle that is offset from an optimal beam-steering angle.