Title:
HOLEY FIBER
Document Type and Number:
WIPO Patent Application WO/2010/001858
Kind Code:
A1
Abstract:
A holey fiber is provided with a core located at the center of the fiber and also with a cladding located on the outer periphery of the core and having holes formed and arranged in layers around the core. The holes are arranged so as to form a grid pattern composed of triangles. If the diameter of the holes is d (μm) and the grid constant of the grid pattern is Λ (μm), d/Λ is within the range of 0.43 ± 0.03 and Λ is 20 - 24 μm. Single mode operation occurs at the wavelength of 1,550 nm, and the effective cross-sectional area of the core at the wavelength of 1550 nm is 500 μm2 or greater. The holey fiber has low linearity and at the same time has single mode operating characteristics and practical bending loss characteristics.
Inventors:
MUKASA KAZUNORI (JP)
Application Number:
PCT/JP2009/061852
Publication Date:
January 07, 2010
Filing Date:
June 29, 2009
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
MUKASA KAZUNORI (JP)
MUKASA KAZUNORI (JP)
International Classes:
G02B6/00; G02B6/032; G02B6/036
Other References:
M.D.NIELSEN ET AL.: "Singlemode photonic crystal fibre with effective area of 600pm2 and low bending loss", ELECTRONICS LETTERS, vol. 39, no. 25, 11 December 2003 (2003-12-11), pages 1802 - 1803, XP006024516
M.D. NIELSEN ET AL.: "Predicting macrobending loss for large-mode area photonic crystal fibers", OPTICS EXPRESS, vol. 12, no. 8, 2004, pages 1775 - 1779
K. SAITOH; M. KOSHIBA: "Empirical relation for simple design of photonic crystal fibers", OPTICS EXPRESS, vol. 13, no. 1, 2005, pages 267 - 274
M.D. NIELSEN ET AL.: "Predicting macrobending loss for large-mode area photonic crystal fibers", OPTICS EXPRESS, vol. 12, no. 8, 2004, pages 1775 - 1779
K. SAITOH; M. KOSHIBA: "Empirical relation for simple design of photonic crystal fibers", OPTICS EXPRESS, vol. 13, no. 1, 2005, pages 267 - 274
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
Download PDF:
Previous Patent: GLASS-FORMED BODY MANUFACTURING METHOD AND MANUFACTURING DEVICE
Next Patent: MEMBER FOR CONVEYING HIGH-TEMPERATURE MATERIAL
Next Patent: MEMBER FOR CONVEYING HIGH-TEMPERATURE MATERIAL