Title:
PHOTONIC CRYSTAL FIBER
Document Type and Number:
WIPO Patent Application WO/2005/003828
Kind Code:
A1
Abstract:
A photonic crystal fiber comprises a core part (10). The core part (10) is composed of a high-refractive-index section (11) disposed at its center and a low-refractive-index section (12) having a refractive index lower than that of the high-refractive-index section (11). The core part (10) is surrounded with the three circles of voids (21) of a clad part (20). The increase of the loss in the long wavelength range is suppressed, and the leak of light due to bending is suppressed. As a result, the mode field diameter and the dispersion value in the 1300 nm band are equivalent to those of an ordinary single-mode optical fiber.
Inventors:
TANAKA MASATOSHI (JP)
YAMAGUCHI SYUNICHIRO (JP)
KUBOTA HIROKAZU (JP)
KAWANISHI SATOKI (JP)
YAMAGUCHI SYUNICHIRO (JP)
KUBOTA HIROKAZU (JP)
KAWANISHI SATOKI (JP)
Application Number:
PCT/JP2004/009780
Publication Date:
January 13, 2005
Filing Date:
July 02, 2004
Export Citation:
Assignee:
MITSUBISHI CABLE IND LTD (JP)
TANAKA MASATOSHI (JP)
YAMAGUCHI SYUNICHIRO (JP)
NIPPON TELEGRAPH & TELEPHONE (JP)
KUBOTA HIROKAZU (JP)
KAWANISHI SATOKI (JP)
TANAKA MASATOSHI (JP)
YAMAGUCHI SYUNICHIRO (JP)
NIPPON TELEGRAPH & TELEPHONE (JP)
KUBOTA HIROKAZU (JP)
KAWANISHI SATOKI (JP)
International Classes:
G02B6/00; G02B6/02; (IPC1-7): G02B6/00
Domestic Patent References:
| WO2003019257A1 | 2003-03-06 | |||
| WO1999000685A1 | 1999-01-07 |
Other References:
EGGLETON B J, ET AL: "Grating resonances in air-silica microstructured optical fibers", OPTICS LETTERS, vol. 24, no. 21, 1 November 1999 (1999-11-01), pages 1460 - 1462, XP000893674
NIELSEN M D, ET AL: "All-silica photonic crystal fiber with large mode area", EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION 2002 (ECOC 2002), vol. 2, 10 September 2002 (2002-09-10), XP001158514
NIELSEN M D, ET AL: "All-silica photonic crystal fiber with large mode area", EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION 2002 (ECOC 2002), vol. 2, 10 September 2002 (2002-09-10), XP001158514
Attorney, Agent or Firm:
Yoshida, Kiyotaka (15-10 Toranomon 1-chom, Minato-ku Tokyo 01, JP)
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