Abstract: An apparatus includes an optical source to produce light in a sequence of wavelength-channels, an optical transmission fiber connected to receive said produced light, an optical wavelength-demultiplexer optically coupled to the optical transmission fiber, and an array of optical data modulators. Each of the optical data modulators is optically coupled to receive light of a corresponding one of the wavelength-channels from the optical source via the optical transmission fiber and the optical wavelength-demultiplexer. The optical source is configured to transmit said light to said optical transmission fiber with a wavelength-dependent intensity.

Abstract: An apparatus includes a micro-electro-mechanical system (MEMS). The MEMS includes a substrate having electrical lines thereon, a slab of optically transmissive material having parallel opposite partially reflective faces to form an optical etalon, a metal trace rigidly fixed along one or more of the faces of the slab, one or more springs rotatably fixing the slab to the substrate, one more magnets located to produce a magnetic field at the metal trace. The electrical lines are connected to the metal trace to provide an electrical current to the metal trace. The optical etalon is configured to tilt in response to producing an electrical current in the metal trace.

Abstract: In a first aspect, an apparatus includes a substrate having a planar surface, an optical demultiplexer located along the surface, and an optical cross-connect matrix located along the surface. The optical demultiplexer has N optical outputs. The optical cross-connect matrix has a first array of N optical input ports and a second array of N optical output ports. Each optical input port of the optical cross-connect matrix is optically connected to a corresponding one of the optical outputs of the optical demultiplexer. The output ports have a sequential ordering in the second array that is a nontrivial permutation of a sequential ordering of the corresponding input ports in the first array.