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1. (WO2005089516) FLAT-TOPPED CHIRP INDUCED BY OPTICAL FILTER EDGE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2005/089516 International Application No.: PCT/US2005/009399
Publication Date: 29.09.2005 International Filing Date: 18.03.2005
Chapter 2 Demand Filed: 18.10.2005
IPC:
H04B 10/04 (2006.01) ,H04B 10/155 (2006.01) ,H04B 10/18 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
10
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
02
Details
04
Transmitters
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
10
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
12
Transmission through light guides, e.g. optical fibres
14
Terminal stations
152
Non-coherent direct-detection systems
155
Transmitters
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
10
Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
12
Transmission through light guides, e.g. optical fibres
18
Arrangements for reducing or eliminating distortion or dispersion, e.g. equalisers
Applicants:
AZNA LLC [US/US]; 36 Jonspin Road Wilmington, MA 01887, US
Inventors:
MAHGEREFTEH, Daniel; US
MATSUI, Yasushiro; US
TAYEBATI, Parviz; US
ZHENG, Xueyan; US
Agent:
PANDISCIO, Mark, J.; Pandiscio & Pandiscio 470 Totten Pond Road Waltham, MA 02451, US
Priority Data:
11/068,03228.02.2005US
60/554,24318.03.2004US
60/566,06028.04.2004US
60/569,76810.05.2004US
60/569,76910.05.2004US
Title (EN) FLAT-TOPPED CHIRP INDUCED BY OPTICAL FILTER EDGE
(FR) COMPRESSION D'IMPULSIONS A PLATEAU INDUITE PAR UN BORD DE FILTRE OPTIQUE
Abstract:
(EN) A fiber optic communication system comprising: an optical signal source adapted to produce a binary amplitude modulated signal; and an optical spectrum reshaper adapted to receive the amplitude modulated signal (fig.3) and to change the instantaneous frequency of the signal at its 0-to-1 and 1-to-0 transitions so as to change the instantaneous frequency of the signal so that it is substantially constant across the 1 pulse. A method for transmitting a signal through a fiber, comprising: generating a second signal from the signal,wherein the second signal comprises a intensity profile and an adiabatic frequency profile; generating a third signal from the second signal, wherein the third signal comprises a intensity profile and a flat-topped frequency profile (fig.1).
(FR) La présente invention concerne un système de communication optique comprenant une source de signaux optiques qui est conçue pour produire un signal binaire modulé en amplitude, ainsi qu'un reprofileur de spectre optique qui est conçu pour recevoir le signal modulé en amplitude et pour modifier la fréquence instantanée du signal à ses transitions 0 à 1 et 1 à 0, de manière qu'elle soit sensiblement constante sur l'impulsion 1. La présente invention concerne également un procédé pour transmettre un signal sur une fibre. Ce procédé consiste à produire un deuxième signal à partir dudit signal, ce deuxième signal comprenant un profil d'intensité et un profil de fréquence adiabatique, puis à produire un troisième signal à partir du second signal, ce troisième signal comprenant un profil d'intensité et un profil de fréquence à plateau.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, 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, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP1730860CN1998165CA2561128