Electromagnetic radiation amplification systems based on photonic gratings

Abstract

Various embodiments of the present invention are related to electromagnetic wave amplification systems employing photonic gratings. In one embodiment of the present invention, an electromagnetic radiation amplification system (900, 1300, 1600) comprises a photonic grating (200-500) and a pump source (902, 1302, 1602). The photonic grating is configured with a planar periodic lattice of holes in aslab (202-402). The pump source is coupled to the photonic grating and outputs an electronic stimulus that excites electronic energy states in the photonic grating so that a coherent beam of electromagnetic radiation incident upon the photonic grating stimulates emission of coherent electromagnetic radiation that amplifies the coherent beam of electromagnetic radiation.

Description

technical field [0001] Various embodiments of the invention relate to amplifiers, and more particularly, to electromagnetic radiation amplifiers employing photonic gratings. Background technique [0002] Electromagnetic radiation passing through any transmission medium suffers from attenuation. In fact, the farther the electromagnetic radiation travels through the transmission medium, the greater the intensity of the radiation loss. Computing and communication systems that process and transmit information encoded in electromagnetic radiation can avoid this problem by amplifying or increasing the intensity of the electromagnetic radiation at various points along the transmission path. Electromagnetic radiation amplifiers are devices that can be placed at various points along a transmission path to increase the magnitude of incident electromagnetic radiation. figure 1 The operation of the electromagnetic radiation amplifier 100 is illustrated. Ideally, the amplifier 100 rec...

AI Technical Summary

Problems solved by technology

[0005] Doped fiber amplifiers and semiconductor amplifiers can be fabricated to amplify signals in a wide frequency range, however these amplifiers generally cannot be designed to selectively amplify electromagnetic radiation in a narrow frequency range without generating interference at other frequencies

Furthermore, doped fiber amplifiers are often too large to couple with microscale and nanoscale optical devices

Although semiconductor amplifiers can be fabricated on a microscale, the structural differences between semiconductor amplifiers and optical fibers make it difficult to couple optical fibers to the PN junction layer of semiconductor amplifiers

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