Lnl Technologies, Inc.

L3 Optics, Inc.

Jose Luis Jimenez

Kadhair Al-hemyari

Mee Koy Chin

Roydn D Jones

A device is provided for demultiplexing a DWDM composite light signal into distinct signal channels or frequencies. The device includes a plurality of resonators, which each acts to slice an incoming signal into two equal parts. The free spectral range characteristics (FSR) of the resonators are successively increased by an even multiple to achieve the slicing effect. As a result, the resonators of the subject invention can be formed with relatively low finesse values because of the slicing effect.

Wavelength-slicing architecture for wavelength demultiplexing using micro-ring resonators

An optical resonator having a non-continuous waveguide having first and second confrontingly opposite end faces between which is defined a region and having a continuous optical path defined through the waveguide. The optical resonator can be tuned to a particular resonant wavelength by providing a phase shifter in the region between the first and second end faces and positioning the phase shifter so as to introduce a phase shift in an optical signal propagating through the waveguide and along the optical path. A method for effecting such a phase shift.

Tunable resonator having a movable phase shifter

An optical switch having an input waveguide and two output waveguides separated by and disposed around a trench. The input waveguide and a first output waveguide have respective optical paths defined by their respective cores which are coaxial with each other. Those waveguides are also separated by a trench having a medium provided therein that has a refractive index different from that of the waveguides. The input waveguide and a second output waveguide are arranged generally on the same side of the trench such that an optical signal passing from the input waveguide to the second output waveguide does not completely traverse the trench. Each of the waveguides has a facet at least on of the facets is angled relative to the optical path of the respective waveguide

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Ann Arbor, MI, United States of America

Jose Luis Jimenez