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Machine translation
1. (WO2004027475) IMPROVEMENTS IN AND RELATING TO PHOTONIC-BAND-GAP GUIDANCE IN PHOTONIC-CRYSTAL FIBRES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/027475    International Application No.:    PCT/GB2003/004011
Publication Date: 01.04.2004 International Filing Date: 18.09.2003
IPC:
G02B 6/16, G02B 6/22
Applicants: CRYSTAL FIBRE A/S [DK/DK]; Blokken 84, DK-3460 Birkerød (DK) (For All Designated States Except US).
BIRKS, Timothy, Adam [GB/GB]; (GB) (For US Only).
ROBERTS, Peter, John [GB/GB]; (GB) (For US Only).
RUSSELL, Philip, St.John [GB/GB]; (GB) (For US Only).
KNIGHT, Jonathan, Cave [GB/GB]; (GB) (For US Only).
MANGAN, Brian, Joseph [GB/GB]; (GB) (For US Only)
Inventors: BIRKS, Timothy, Adam; (GB).
ROBERTS, Peter, John; (GB).
RUSSELL, Philip, St.John; (GB).
KNIGHT, Jonathan, Cave; (GB).
MANGAN, Brian, Joseph; (GB)
Agent: CRITTEN, Matthew, Peter; Abel & Imray, 20 Red Lion Street, London WC1R 4PQ (GB)
Priority Data:
0221812.1 19.09.2002 GB
Title (EN) IMPROVEMENTS IN AND RELATING TO PHOTONIC-BAND-GAP GUIDANCE IN PHOTONIC-CRYSTAL FIBRES
(FR) PERFECTIONNEMENTS DANS ET CONCERNANT L'ORIENTATION DE BANDE INTERDITE DANS DES FIBRES A CRISTAL PHOTONIQUE
Abstract: front page image
(EN)In order to increase the frequency range guided in the core of a photonic crystal fibre, the photonic crystal cladding structure is optimised with respect to an increased overlap of the band gaps (120, 110, 130) with the light line (100) of the fibre core. For a fibre with a hollow core and a cladding consisting of cylindrical air rods in a silica matrix arranged in a triangular lattice, this overlap can be optimised by increasing the air filling factor which 'tilts' the band gaps towards the core light line.
(FR)Afin d'accroître la plage de fréquences guidées dans le coeur d'une fibre à cristal photonique, la structure de gaine à cristal photonique est optimisée par rapport à un chevauchement accru des bandes interdites (120, 110, 130) avec une ligne lumineuse (100) du coeur de la fibre. Pour une fibre à coeur creux et une gaine constituée de tiges d'air cylindriques dans une matrice en silice disposées en une grille triangulaire, ce chevauchement peut être optimisé par l'accroissement du facteur de remplissage d'air qui fait incliner les bandes interdites vers la ligne lumineuse.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, 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, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, 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, IT, LU, MC, NL, 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)