Abstract: An optical filter is disclosed. The filter includes a light distribution component having an output side. A plurality of array waveguides are configured to deliver a light signal into the light distribution component such that the light signal is incident on the output side of the light distribution component. The array waveguides are configured to adjust the location where the light signal is incident on the output side.

Abstract: An add/drop node is disclosed. The add/drop node includes a first filter configured to receive a light beam having a plurality of channels. The first filter is also configured to direct channels having wavelengths falling within a plurality of first wavelength bands to a transition waveguide. The add/drop node also includes a second filter configured to receive the channels directed to the transition waveguide. The second filter is configured to direct channels having wavelengths falling within a plurality of second wavelength bands to a drop waveguide. The first filter and/or the second filter can be tunable.

Abstract: The optical component includes an array of array waveguides. The optical component also includes a first light distributing component configured to distribute a first light signal to the array waveguide. The first light signal is distributed such that a fraction of the first light signal enters each array waveguide as a light signal fraction. The optical component also includes a second light distribution component configured to received the light signal fractions from the array waveguides. The light signal fractions are received so they combine to from a second light signal with a periodic intensity distribution.

Abstract: An optical component is disclosed. The optical component includes an input waveguide having an expansion region expanding from an input port to a multimode port. The expansion region is configured to receive a light signal through the input port. An array waveguide grating is configured to receive a light signal from the expansion region of the input waveguide. An output waveguide has an output port configured to receive the light signal from the array waveguide grating. The output port has dimensions that are different from dimensions of the input port. In some instances, a function expressing the expansion from the input port to the multimode port includes an exponential function and/or a sinh function.

Abstract: An optical filter system is disclosed. The optical filter system includes a first filter configured to output light signals having wavelengths falling within a plurality of periodically spaced wavelength bands. A second filter in optical communication with the first filter and being configured to output light signals having wavelengths falling within a plurality of periodically spaced bands. The period of the bands associated with the first filter is different than the period of the bands associated with the second filter.

Abstract: A method of separating optical components is disclosed. The method includes obtaining a substrate structure having a plurality of optical components formed on the substrate structure. The method also includes performing a separation etch on a separation region of the substrate structure. The separation region is selected such that separating the substrate structure at the separation region separates at least one of the optical components from the other optical components.