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US 6,888,668 B2Granted
Optical amplifier with multiple wavelength pump
AssigneeIntel Corporation
InventorsDmitri E. Nikonov, Christopher J. Scholz
Life of this patent
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Abstract
An optical amplifier comprises a substrate, an optical multiplexer embedded in the substrate, pump light sources with multiple wavelengths coupled to the optical multiplexer, and an amplification waveguide coupled to the multiplexer. In one embodiment an optical signal is directed to another waveguide in the substrate. In another embodiment, the amplification waveguide is doped with a rare earth element.
Claims24
An optical amplifier comprising:
- a substrate;
- an optical multiplexer embedded in the substrate, wherein the optical multiplexer is an array waveguide grating and an echelle grating;
- pump light sources with multiple wavelengths coupled to the optical multiplexer;
- and
- an amplification waveguide coupled to the optical multiplexer.
2 more elements
A method of amplifying an optical signal comprising:
- producing pumping light beams having multiple wavelengths;
- directing the optical ignal and the pumping light beams into a planar waveguide doped with a rare earth element, and
- multiplexing the pumping light beams into a single-mode waveguide.
An optical amplifier comprising:
- a first waveguide for carrying an optical signal, the first waveguide embedded in a device substrate;
- an array waveguide grating coupled to the first waveguide;
- two or more laser diodes for providing light beams having differing wavelengths into the array waveguide grating;
- and
- an Erbium-doped amplification waveguide coupled to the array waveguide grating for amplifying the optical signal.
2 more elements
An optipal amplifier comprising:
- a substrate;
- an optical multiplexer embedded in the substrate;
- pump light sources with multiple wavelengths coupled to the optical multiplexer, wherein the pump light sources comprise a plurality of laser diodes and wherein the plurality of laser diodes are Vertical Cavity Surface Emitting Lasers having a power of approximately 20 mW or less;
- and
- an amplification waveguide coupled to the optical multiplexer.
2 more elements
Dependencies are inferred from the claim text.