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Browse by Category: Main > Optical & Optics
Class Information
Number: 356/73.1
Name: Optics: measuring and testing > For optical fiber or waveguide inspection
Description: Subject matter wherein there is means to examine one or more transparent elongated structures (e.g., rods, fibers, or pipes) which are used to transmit light rays from one point to another within the confines of their outer surface, and involving internal reflections or modal transmission.










Patents under this class:
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Patent Number Title Of Patent Date Issued
6421117 Apparatus for optical time domain reflectometry on multi-mode optical fibers, a light source section thereof, and a process for producing the light source section Jul. 16, 2002
6421118 Method of measuring concentricity of an optical fiber Jul. 16, 2002
6421153 Device and method for determining PMD independent of SOP Jul. 16, 2002
6407805 Time delay measurement using optical signals modulated at multiple frequencies Jun. 18, 2002
6400450 Method of qualifying a multimode optical fiber for bandwidth performance Jun. 4, 2002
6393923 Dynamic bendloss measuring device May. 28, 2002
6396573 System and method for optically testing broadcasting systems May. 28, 2002
6396574 Apparatus for measuring the wavelength, optical power and optical signal-to-noise ratio of each optical signal in wavelength-division multiplexing optical communication May. 28, 2002
6396575 Test and measurement system for detecting and monitoring faults and losses in passive optical networks (PONs) May. 28, 2002
6392746 Electronic fiberoptic power and wavelength measuring instrument May. 21, 2002
6388741 Localization of faults in an optical fiber May. 14, 2002
6388742 Method and apparatus for evaluating the performance characteristics of endoscopes May. 14, 2002
6379976 Determination of polymerization/coagulation in a fluid Apr. 30, 2002
6381010 Method of determining a characteristic of an optical fiber by reflectometry Apr. 30, 2002
6381011 Optical fault locator Apr. 30, 2002
6373562 Fiberoptic cable tester Apr. 16, 2002
6373563 Polarization randomized optical source having short coherence length Apr. 16, 2002
6373564 Image tracking device and method for transverse measurement of optical fiber Apr. 16, 2002
6369883 System and method for enhanced mass splice measurement Apr. 9, 2002
6369888 Method and apparatus for article inspection including speckle reduction Apr. 9, 2002
6366347 Instrument for measuring the near-end crosstalk per unit length of multicore fibers Apr. 2, 2002
6366348 Optical fiber distortion measuring apparatus and optical fiber distortion measuring method Apr. 2, 2002
6362874 Polarization mode dispersion measurement using phase-sensitive sideband detection Mar. 26, 2002
6344919 Methods and systems for producing linear polarization states of light at the end of a length of optical fiber Feb. 5, 2002
6342945 System and method for measuring polarization mode dispersion suitable for a production environment Jan. 29, 2002
6339470 Apparatus and method for aligning an energy beam Jan. 15, 2002
6335788 Optical-fiber characteristics measuring apparatus Jan. 1, 2002
6335823 Optical amplifier for use in optical communications equipment Jan. 1, 2002
6334007 Optical fiber pull tester having an acoustic sensor Dec. 25, 2001
6323950 Chromatic dispersion measurement for optical components Nov. 27, 2001
6317214 Method and apparatus to determine a measurement of optical multiple path interference Nov. 13, 2001
6313909 Fiber defect detection apparatus and method Nov. 6, 2001
6310718 Optical amplifying apparatus for detecting break point in optical transmission lines Oct. 30, 2001
6304322 Method for quality assurance testing of fiber-optic laser modules Oct. 16, 2001
6287020 Observation apparatus and fusion splicer for optical fibers Sep. 11, 2001
6271922 Transmission system and associated method for measuring interference effects of glass fiber transmission links Aug. 7, 2001
6260386 Optical fiber preform cleaning method Jul. 17, 2001
6259517 Optical fiber breakage detection system Jul. 10, 2001
6259993 Optical fiber characteristic evaluation system and computer-readable recording medium on which computer program used for the system is recorded Jul. 10, 2001
6256090 Method and apparatus for determining the shape of a flexible body Jul. 3, 2001
6252656 Apparatus and method of seismic sensing systems using fiber optics Jun. 26, 2001
6252660 Method and device for measuring the length of a light guide Jun. 26, 2001
6236452 Optical amplifier evaluation method and optical amplifier evaluation device May. 22, 2001
6229599 Apparatus for measuring characteristics of an optical fiber May. 8, 2001
6224830 Absorbance cell for microfluid devices May. 1, 2001
6226117 Noise figure measurement of optical amplifiers by power substitution May. 1, 2001
6215555 Method and apparatus for measuring endface surface topography of multi-fiber fiberoptic connectors Apr. 10, 2001
6211950 Optical pulse reflectometer Apr. 3, 2001
6212003 Optical amplifier evaluating method and optical amplifier evaluating apparatus Apr. 3, 2001
6203492 Scope tester Mar. 20, 2001

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