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US 8,078,014 B1Granted
High-speed electro-optical modulator
AssigneeHRL Laboratories, LLC
InventorOleg M. Efimov
Life of this patent
Estimating the term…
Abstract
A method of amplitude electro-optic modulation. The method includes transmitting a narrowband laser light into an electro-optically active waveguide in a first direction. The electro-optically active waveguide has a grating for reflecting the narrowband laser light. The method also includes applying an electric signal to the electro-optically active waveguide and modifying the reflection of the grating in a wavelength region of the narrowband laser light by application of the electric signal.
Claims12
A method of amplitude electro-optic modulation, the method comprising:
- transmitting a narrowband laser light into an electro-optically active waveguide in a first direction, the electro-optically active waveguide having a grating for reflecting the narrowband laser light;
- applying a pulsed electric signal to the electro-optically active waveguide in a second direction substantially opposite to the first direction;
- and
- modifying the reflection of the grating in a wavelength region of the narrowband laser light by application of the pulsed electric signal.
1 more element
An amplitude electro-optic modulator comprising:
- an electro-optically active waveguide for propagating a narrowband light in a first direction, the electro-optically active waveguide having a grating for reflecting the narrowband light, the grating having a grating reflection spectrum with a transition between high and low reflection, the narrowband light having a spectrum substantially within the spectrum of the transition between high and low reflection;
- and
- at least two electrodes proximate to the grating and being configured to impose an electric pulse along the electro-optically active waveguide in a direction substantially opposite the first direction.
Dependencies are inferred from the claim text.