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US 6,215,928 B1Granted
Active wavelength selection with resonant devices
AssigneeYeda Research and Development Co. Ltd.
InventorsAsher A. Friesem, Avner Zvi Sharon
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Abstract
This invention discloses an electro-optically controlled optical element including a diffraction grating, and a planar waveguide associated with the diffraction grating, the diffraction grating and planar waveguide being configured to undergo resonance of at least one of transmitted or reflected light at a wavelength which is selectable by means of an electrical input.
Claims44
An electro-optically controlled optical element, comprising:
- a diffraction grating;
- and
- a planar waveguide associated with said diffraction grating, said diffraction grating and said planar waveguide constituting a resonant structure, tunable to a preselected wavelength of light by means of an electrical input.
A laser comprising:
- a laser cavity;
- and
- an active tunable mirror and an output coupler defining said laser cavity, and wherein said active tunable mirror comprises an electro-optically controlled optical element comprising:
- a diffraction grating;
- and
- a planar waveguide associated with said diffraction grating, said diffraction grating and said planar waveguide constituting a resonant structure, tunable to a preselected wavelength of light by means of an electrical input.
3 more elements
Dependencies are inferred from the claim text.