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1. (WO2018089123) OVERLAPPING SPECTRUM AMPLIFICATION
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Pub. No.: WO/2018/089123 International Application No.: PCT/US2017/053700
Publication Date: 17.05.2018 International Filing Date: 27.09.2017
IPC:
H04B 10/291 (2013.01)
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
29
Repeaters
291
in which processing or amplification is carried out without conversion of the main signal from optical form
Applicants:
GOOGLE INC. [US/US]; 1600 Amphitheatre Parkway Mountain View, CA 94043, US
Inventors:
KAMALOV, Valey; US
VUSIRIKALA, Vijayanand; US
DANGUI, Vinayak; US
Agent:
KRUEGER, Brett, A.; US
Priority Data:
15/348,43010.11.2016US
Title (EN) OVERLAPPING SPECTRUM AMPLIFICATION
(FR) AMPLIFICATION DE SPECTRE CHEVAUCHANT
Abstract:
(EN) A method (400) for overlapping spectrum amplification includes receiving an optical signal (102) and splitting the optical signal into a first split signal (102a) having a first wavelength band (λa) and a second split signal (102b) having a second wavelength band (λb). The splitting results in a band gap (G) between the first wavelength band and the second wavelength band. The method further includes delaying the first split signal by a threshold period of time relative to the second split signal and combining the first split signal and the second split signal, resulting in a combined signal (104) having the first wavelength band and the second wavelength band without the band gap therebetween. The path difference between the first split signal along the first signal path (P1) and the second split signal along the second signal path (P2) is within a threshold multipath interference compensation range.
(FR) Un procédé (400) pour une amplification de spectre chevauchant comprend la réception d'un signal optique (102) et la division du signal optique en un premier signal divisé (102a) ayant une première bande de longueur d'onde (λa) et un second signal divisé (102b) ayant une seconde bande de longueur d'onde (λb). La division résulte en une bande interdite (G) entre la première bande de longueur d'onde et la seconde bande de longueur d'onde. Le procédé comprend en outre le retardement du premier signal divisé par une période de temps seuil par rapport au second signal divisé, ainsi que la combinaison du premier signal divisé et du second signal divisé, ce qui permet d'obtenir un signal combiné (104) comprenant la première bande de longueur d'onde et la seconde bande de longueur d'onde sans la bande interdite entre eux. La différence de trajet entre le premier signal divisé le long du premier trajet de signal (P1) et le second signal divisé le long du second trajet de signal (P2) se situe dans une plage seuil de compensation d'interférence de trajets multiples.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)