Optical waveguides – With splice – Fusion splicing
Reexamination Certificate
2005-03-15
2005-03-15
Ullah, Akm Enayet (Department: 2874)
Optical waveguides
With splice
Fusion splicing
C385S095000, C385S097000, C385S098000, C219S121130, C065S501000
Reexamination Certificate
active
06866429
ABSTRACT:
A low-cost approach is provided for forming a low splice loss, low back reflection loss and mechanically robust angle-fusion splice between a standard silica fiber and a low-temperature non-silica glass fiber. This is accomplished by angle cleaving the silica fiber, square cleaving the non-silica fiber and then asymmetrically heating the fibers to form an angle fusion splice. A matched angle at the end of the non-silica fiber is generated in situ during the splicing process. The tip of the angle-cleaved silica fiber may be polished flat back to the edge of the core to reduce the range of motion of the non-silica fiber during splicing thereby further reducing splice loss and enhancing the mechanical strength of the joint.
REFERENCES:
patent: 3615312 (1971-10-01), Landry et al.
patent: 5560760 (1996-10-01), Toeppen
patent: 5649040 (1997-07-01), Ljungqvist et al.
patent: 6186675 (2001-02-01), Ruegenberg
patent: 6244757 (2001-06-01), Kim et al.
patent: 6289027 (2001-09-01), Lawrence et al.
patent: 6294760 (2001-09-01), Inoue et al.
patent: 6652163 (2003-11-01), Fajardo et al.
patent: 6705771 (2004-03-01), Jiang et al.
patent: 20010047668 (2001-12-01), Ochiai et al.
patent: 20020141705 (2002-10-01), Duelli et al.
patent: 20020164132 (2002-11-01), Tian
patent: WO 9007134 (1990-06-01), None
Adam E. Barnes et al., Sapphire Fibers: Optical Attenuation and Splicing Tecniques, Applied Optics, Oct. 20, 1995, pp. 6855 to 6858, vol. 34, No. 30.
Yutaka Kuroiwa et al., Fusion Spliceable and High Efficient Bi2O3-based EDF for Short-length and Broadband Application Pumped at 1480 nm., pp. TuI5-1 to TuI5-3, 2000 Optical Society of America.
Naoki Sugimoto et al., C+L Band Amplifying Properties in Short-length Bismuth Oxide Based Erbium Doped Fibers.
Asahi Glass Company, Technical Bulletin Bismuth-based EDF,—A Broadband, High Efficiency and Compact EDF, Technical bulletin rev. 2.22, Feb. 23, 2000, pp. 1 to 17.
W. H. Loh et al., Single-sided Output Sn/Er/Yb Distributed Feedback Fiber Laser, Appl. Phys. Letter 69 (15), Oct. 7, 1996, pp. 2151 to 2153, 1996 American Institute of Physics.
H.Y. Tam, Simple Fusion Splicing Technique for Reducing Splicing Loss Between Standard Singlemode Fibres and Erbium-doped Fibre, Electronics Letters, Aug. 15, 1991, pp. 1597 to 1599, vol. 27, No. 17.
B. B. Harbison et al., Fusion Splicing of Heavy Metal Fluoride Glass Optical Fibres, Electronics Letters, 1989, vol. 25, No. 18.
L. Rivoallan et al., Fusion Splicing of Fluoride Glass Optical Fibre with CO2 Laser, Electronics Letters, May 12, 1988.
Tetsuya Miyazaki et al., Nd-Doped Double-Clad Fiber Amplifier at 1.06 um, Journal of Lightwave Technology, Apr. 1998, pp. 562 to 566, vol. 16, No. 4, 1998.
Wenxin Zheng, Real Time Control of Arc Fusion for Optical Fiber Splicing, Journal of Lightwave Technology, Apr. 1993, pp. 548 to 553, vol. 11, No. 4, 1993.
Wenxin Zheng et al., Erbium-Doped Fiber Splicing and Splice Loss Estimation, Journal of Lightwave Technology, Mar. 1994, pp. 430 to 435, vol. 12, No. 3, 1994.
K. Egashira et al., Optical Fiber Splicing with a Low-power CO2 Laser, Applied Optics, Jun. 1977, pp. 1636 to 1638, vol. 16, No. 6.
A. Berg et al., Arc Fusion Splices with Improved Strength (4.8 GPa) Approaching the Strength of the Fibre, Electronics Letters, Dec. 15, 1994, IEE 1995.
D. L. Bisbee, Splicing silica fibers with an electric arc, Applied Optics, Mar. 1976, vol. 15, No. 3.
Li Weijiong
Wang Jiafu
Gifford Eric A.
NP Photonics Inc.
Petkovsek Daniel
Ullah Akm Enayet
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