PHOTO DETECTOR AND OPTICAL DEVICE USED THE SAME
Disclosed in the present invention are a photo detector and an optical device including the same. The device includes: first and second lasers which generate first and second laser beams; an optical waveguide which is connected to the first and second lasers; and a photo detector which detects the f...
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| creator | HAN, SANG PIL PARK, JEONG WOO RYU, HAN CHEOL KO, HYUN SUNG PARK, KYUNG HYUN LEE, DONG HUN KIM, NAM JE |
| description | Disclosed in the present invention are a photo detector and an optical device including the same. The device includes: first and second lasers which generate first and second laser beams; an optical waveguide which is connected to the first and second lasers; and a photo detector which detects the first and second laser beams transmitted through the optical waveguide, wherein the photo detector includes: a substrate; a first impurity layer on the substrate; an absorption layer on the first impurity layer; and a second impurity layer on the absorption layer. The absorption layer generates terahertz waves by the beating of the first and second laser beams and is able to have a thickness less than 0.2 micrometer. [Reference numerals] (12) First laser;(14) Second laser;(30) Photodetector;(50) Output circuit |
| format | Patent |
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The device includes: first and second lasers which generate first and second laser beams; an optical waveguide which is connected to the first and second lasers; and a photo detector which detects the first and second laser beams transmitted through the optical waveguide, wherein the photo detector includes: a substrate; a first impurity layer on the substrate; an absorption layer on the first impurity layer; and a second impurity layer on the absorption layer. The absorption layer generates terahertz waves by the beating of the first and second laser beams and is able to have a thickness less than 0.2 micrometer. 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The device includes: first and second lasers which generate first and second laser beams; an optical waveguide which is connected to the first and second lasers; and a photo detector which detects the first and second laser beams transmitted through the optical waveguide, wherein the photo detector includes: a substrate; a first impurity layer on the substrate; an absorption layer on the first impurity layer; and a second impurity layer on the absorption layer. The absorption layer generates terahertz waves by the beating of the first and second laser beams and is able to have a thickness less than 0.2 micrometer. [Reference numerals] (12) First laser;(14) Second laser;(30) Photodetector;(50) Output circuit</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; kor |
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| subjects | BASIC ELECTRIC ELEMENTS COLORIMETRY DEVICES USING STIMULATED EMISSION ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS RADIATION PYROMETRY TESTING TRANSMISSION |
| title | PHOTO DETECTOR AND OPTICAL DEVICE USED THE SAME |
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