Optics: measuring and testing – For optical fiber or waveguide inspection
Reexamination Certificate
2005-01-26
2010-10-19
Chowdhury, Tarifur (Department: 2886)
Optics: measuring and testing
For optical fiber or waveguide inspection
Reexamination Certificate
active
07817257
ABSTRACT:
A method for measuring a multimode optical fiber includes: monitoring a temperature change within a measurement time in a DMD measurement of the multimode optical fiber, where the DMD measurement is carried out in an environment in which a magnitude of temperature change is controlled.
REFERENCES:
patent: 7194155 (2007-03-01), Kahn et al.
patent: 2003/0128942 (2003-07-01), DiGiovanni et al.
patent: 2003/0228103 (2003-12-01), Ohira et al.
patent: 60-214235 (1985-10-01), None
patent: 5-248996 (1993-09-01), None
patent: 2002-64430 (2002-02-01), None
patent: 2002-257683 (2002-09-01), None
patent: 2002-541474 (2002-12-01), None
patent: 2003-195085 (2003-07-01), None
Pepeljugoski, P., et al. “15.6-Gb/s Transmission over 1 km of next generation multimode fiber”, May 2002, Photonics Technology Letters, IEEE. vol. 14, Issue 5, p. 717-719.
Zhou et al., “A study on temperature and humidity dependence of PMD”, Technical Report of IEICE, Sep. 27, 2002, pp. 35-38, vol. 102, No. 357, The Institute of Electronics, Information and Communication Engineers, Tokyo, Japan.
“Optical Fibres—Part 2-10: Product Specifications—Sectional specification for category A1 multimode fibres” IEC 60793-2-10, Mar. 2002, pp. 1-43, First edition, International Electrotechnical Commission, Geneva, Switzerland.
Galtarossa et al., “Improving the Accuracy of the Wavelength-Scanning Technique for PMD Measurements”, IEEE Photonics Technology Letters, Feb. 2000, pp. 184-186, vol. 12, No. 2, IEEE.
Kato et al., “Temperature Dependence of Chromatic Dispersion in Various Types of Optical Fibers”, Optical Fiber Communication Conference, Nov. 2000, pp. 104-106, vol. 1.
“Differential Mode Delay Measurement of Multimode Fiber in the Time Domain”, TIA-455-220-A, Jan. 2003, Telecommunications Industry Association.
IEC PAS 60793-1-49: “Optical fibres—Part 1-49: Measurement methods and test procedures 0 Differential Mode Delay”, May 2005.
Shin-Etsu Quartz Products Co., Ltd., Quartz Glass Technical Guide—2 Optical Properties of Quartz Glass, p. 7. (http://www.sqp.co.jp/seihin/catalog/pdf/g2.pdf).
Shin-Etsu Quartz Products Co., Ltd., Quartz Glass Technical Guide—1 Chemical and Physical Properties of Quartz Glass, p. 7. http://www.sqp.co.jp/seihin/catalog/pdf/g1.pdf.
Shin-Etsu Quartz Products Co., Ltd., “Quartz Glass Technical Guide—1 Chemical and Physical Properties of Quartz Glass”, p. 7, Tokyo, Japan, Oct. 1, 2005. (available at: http://www.sqp.co.jp/seihin/catalog/pdf/g1.pdf).
Shin-Etsu Quartz Products Co., Ltd., “Quartz Glass Technical Guide—2 Optical Properties of Quartz Glass”, p. 7, Tokyo, Japan, Oct. 1, 2005. (available at: http://www.sqp.co.jp/seihin/catalog/pdf/g2.pdf).
The Institute of Electrical and Electronics Engineers, Inc. (IEEE), “802.3ae: IEEE Standard for Information Technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements, Part 3”, pp. 401-443, New York, NY Aug. 30, 2002.
International Electrotechnical Commission (IEC), “IEC/PAS 60793-1-49 Edition 1.0, Pre-Standard Optical fibres—Part 1-49: Measurement methods and test procedures—Differential mode delay”, Geneva Switzerland, May 2005.
International Electrotechnical Commission (IEC), “IEC 60793-2-10 Ed. 2.0: Optical Fibres—Part 2-10: Product specifications—Sectional specification for category A1 multimode fibres”, Geneva, Switzerland Jul. 23, 2004.
Guan Ning
Harada Koichi
Himeno Kuniharu
Matsuo Shoichiro
Takenaga Katsuhiro
Chowdhury Tarifur
Fujikura Ltd.
Pajoohi Tara S
Sughrue & Mion, PLLC
LandOfFree
Method for measuring a differential mode delay of a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for measuring a differential mode delay of a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for measuring a differential mode delay of a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4200806