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Machine translation
1. (WO2002032019) OPTICAL COMMUNICATIONS BY FREQUENCY CONTENT OF FEMTOSECOND LASER PULSES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/032019    International Application No.:    PCT/US2000/041098
Publication Date: 18.04.2002 International Filing Date: 06.10.2000
Chapter 2 Demand Filed:    04.05.2001    
IPC:
H04B 10/112 (2013.01)
Applicants: BOARD OF REGENTS [US/US]; University of Nebraska-Lincoln, 307 Administration Building, P.O. Box 880467, Lincoln, NE 68588-0467 (US)
Inventors: ALEXANDER, Dennis, R.; (US).
ROHLFS, Mark, Lee; (US)
Agent: COOL, Kenneth, J.; Suiter & Associates PC, Suite 205, 11516 Nicholas Street, Omaha, NE 68154-4409 (US)
Priority Data:
60/157,949 06.10.2000 US
Title (EN) OPTICAL COMMUNICATIONS BY FREQUENCY CONTENT OF FEMTOSECOND LASER PULSES
(FR) COMMUNICATIONS OPTIQUES REPOSANT SUR LA STRUCTURE FREQUENTIELLE D'IMPULSIONS LASER FEMTOSECONDE
Abstract: front page image
(EN)A free-space optical communications system is provided capable of transmitting data over long distances through the atmosphere. The communications system comprises an optical transmitter comprising a femtosecond pulsed laser source (40) for producing a train of femtosecond laser pulses. The optical transmitter further comprises a laser pulse width modulator (38) to provide a pulse width modulated train of femtosecond laser pulses corresponding to the data being transmitted. The communications system further comprises an optical receiver (44) for receiving the modulated train of femtosecond laser pulses. The optical receiver comprises a spectral analyzer for detecting the spectral components of the pulse width modulated train of femtosecond laser pulses, and further comprises decoder circuitry (54) operable to replicate the transmitted data based on the spectral components of the modulated train of femtosecond laser pulses. A method for optically transmitting data employing the optical communication system according to the present invention is also provided.
(FR)L'invention concerne un système de communications optiques en espace libre, pour la transmission de données sur grande distance dans l'atmosphère. Le système comprend un émetteur optique à source d'impulsions laser femtoseconde (40) produisant un train d'impulsions correspondantes. En outre, l'émetteur comprend un modulateur de largeur d'impulsion laser (38) qui établit un train à modulation d'impulsions en largeur correspondant aux données transmises. Le système comprend également un récepteur optique (44) recevant ce train. Le récepteur comporte un analyseur spectral décelant les composantes spectrales du train considéré, ainsi que des circuits de décodage (54) pouvant reproduire les données transmises sur la base des composantes spectrales de ce train. L'invention concerne par ailleurs un procédé relatif à la transmission optique de données par le biais du système décrit.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)