Optical waveguides – Optical fiber waveguide with cladding – Utilizing multiple core or cladding
Reexamination Certificate
2009-09-04
2011-10-04
Doan, Jennifer (Department: 2874)
Optical waveguides
Optical fiber waveguide with cladding
Utilizing multiple core or cladding
C385S123000, C385S124000, C385S125000, C385S126000
Reexamination Certificate
active
08031999
ABSTRACT:
A photonic band-gap fiber comprises a first core having a refractive index that is not higher than a refractive index of a clad; a second core that is disposed so as to surround the first core and has a refractive index that is lower than the refractive index of the first core; a clad that surrounds the second core; and a periodic structure portion that is disposed in the clad in a vicinity of the second core and is constituted by high-refractive index portions that have a refractive index higher than that of clad and form the periodic structure, and the periodic-structure portion functions as a wave-length filter. By the function of the periodic structure portion as a wave-length filter, it is possible to reduce the propagation loss of the transmission wavelength and increase the propagation loss of the cutoff wavelength.
REFERENCES:
patent: 6404966 (2002-06-01), Kawanishi et al.
patent: 7174078 (2007-02-01), Libori et al.
patent: 7190869 (2007-03-01), Jin et al.
patent: 2001/0017967 (2001-08-01), Hirano
patent: 2001/0026667 (2001-10-01), Kawanishi et al.
patent: 2005/0084223 (2005-04-01), Tanaka et al.
patent: 2006/0034575 (2006-02-01), Sako et al.
patent: 2006/0159410 (2006-07-01), Saito et al.
patent: 2006/0257071 (2006-11-01), Bise et al.
patent: 1477829 (2004-11-01), None
patent: 01147412 (1989-06-01), None
patent: 2000-035521 (2000-02-01), None
patent: 2002237637 (2002-08-01), None
patent: 2003075657 (2003-03-01), None
patent: 2003-222739 (2003-08-01), None
patent: 2003229618 (2003-08-01), None
patent: 2005025056 (2005-01-01), None
patent: 2005202440 (2005-07-01), None
patent: 2006-011328 (2006-01-01), None
patent: 2006011328 (2006-01-01), None
patent: 2006126725 (2006-05-01), None
patent: 2006-139018 (2006-06-01), None
patent: 2007-033466 (2007-02-01), None
patent: 0042458 (2000-07-01), None
patent: 00/62106 (2000-10-01), None
patent: 03065089 (2003-08-01), None
International Search Report of PCT/JP2008/053952, mail dated Apr. 8, 2008.
J. D. Love et al.; “Radiation from single-mode helical fibical” , Electronics letters, vol. 23, No. 21, pp. 1109-1110, 1987.
John M. Fini; “Design of solid and microstructure fibers for supperssion of higher-order modes”, Optics Express, vol. 13, No. 9, p. 3477, 2005.
Japanese Office Action dated Apr. 7, 2009, issued in corresponding Japanese Patent Application No. 2008-541531 ( With English Translation).
Japanese Office Action dated Dec. 2, 2008, issued in corresponding Japanese Patent Application No. 2008-541531 (With English Translation).
Japanese Office Action dated Jul. 7, 2009, issued in corresponding Japanese Patent Application No. 2009-502609 (With English Translation).
Japanese Office Action dated Mar. 17, 2009, issued in corresponding Japanese Patent Application No. 2009-502609 (With English Translation).
L. Lavoute et al.; “Design of microstructured single-mode fiber combining large mode area and high rare earth ion concentration”, Optics Express, vol. 14, No. 7. p. 2994, 2006.
Ryuichiro Goto et al.,: B-13-15, “Silica-Based Wide- Band solid Photonic Band Gap Fiber”, Proceedings of the Communications Society Conference of IEICE 2, Sep. 7, 2006, p. 322, with partial English translation thereof.
Ryuichiro Goto et al.; “Silica-based Wide-band Solid Photonic Band Gap Fiber” Technical Report of IEICE,, OCS Optical Communication System, Aug. 17, 2006, vol. 106, No. 210, pp. 39-42, with partial English translation thereof.
Takatoshi Kato et al., “Ultra Low Non-linearity Low Loss Pure Silica Core Fiber for Long- Haul WDM Transmission”, Proceedings of the Electronics, Information and Techniques society Conference of IEICE 1, Aug. 16, 1999, p. 182, C-3-76, with partial English Translation thereof.
Takayoshi Kato et al., “Dispersion Shifted Fiber for WDM Trasmission”, Technical Report of IEICE, OCS, Optical Communication System, Nov. 1, 1996, vol. 96, No. 335, pp. 43-48, with partial English translation thereof.
Tetsuya Miki et al., “Photonic Technology Handbook”, Optics Co., Ltd, Jan. 30, 2002, first impression of the first edition, pp. 196-198, with partial English translation thereof.
Japanese Office Action dated Nov. 24, 2009, issued in corresponding Japanese Patent Application No. 2009-502609 (With English Translation).
Brechet, F. et al; “Analysis of bandpass filtering behaviour of singlemode depressed-core-index photonic-bandgap fibre”; Electronics Letters, IEE Strevenage, GB LNKD- DOI: 10.1049/EL: 20000675, vol. 36, No. 10, May 11, 2000, pp. 870-872.
European Search Report dated May 10, 2010, issued in corresponding European Patent Application No. 08721372.4.
Fevrier, S. et al.; “Low-loss singlemode large mode area all-silica photonic bandgap fiber” Optics Express, OSA (Optical Society of America), Washington DC, (US) LNKD- DOI: 10.1364/OPEX.14.000562, vol. 14, No. 2, Jan. 23, 2006, pp. 562-569.
Min, Yan et al.; “Loss Property of Photonic Bandgap Fiber Made of High-index Cylinders in Low-index Host Material”; Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 Internal IONAL Conference on Chengdu, China Jun. 27-29, 2004, Piscataway, NJ, USA, IEEE, US LNKD-DOI: 10.1109/ICCCAS. 2004.1346248, Jun. 27, 2004, pp. 656-659, vol. 1.
Steinvurzel, P. et al.; “Continuously tunable bandpass filitering using high-index inclusion microstructured optical fibre” Electronics Letters, IEE Stevenage, GB LNKD-DOI: 10.1049/EL: 20050037, vol. 41, No. 8, Apr. 14, 2005, pp. 463-464.
Tanigawa, S. et al.: “Bend Sensitive Wavelength Filtering in Concentric Core Solid Photonic Bandgap Fibre” Opto-Electronics and Communications Conference, 2008 and The 2008 Australian Conference on Optical Fibre Technology. OECC/ACOFT 2008. Joint Conference of the, IEEE, Piscataway, NJ, USA, Jul. 7, 2008, pp. 1-2.
International Search Report of PCT/JP2008/053515, date of mailing Apr. 22, 2008.
Supplementary European Search Report dated Apr. 12, 2011, issued in corresponding European Patent Application No. 08712086.1.
Goto R. et al., “Single-polarization operation in birefringent all-solid hybrid microstructured fiber with additional stress applying parts”, Optics Letters, OSA, Optical Society of America, Washington, DC, US, vol. 34, No. 20, Oct. 15, 2009, pp. 3119-3121, XP001549142.
Doan Jennifer
Fujikura Ltd.
Westerman Hattori Daniels & Adrian LLP
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