ClassID:

167127

G01M11/333 - CPC Classification

Classification description:

Testing of optical apparatus; Testing structures by optical methods not otherwise provided for; Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face using modulated input signals

Sub-classes:
Recent Application in this class:
#1
20260126345
2026-05-07

OPTICAL FIBER CHARACTERISTIC MEASUREMENT DEVICE AND OPTICAL FIBER CHARACTERISTIC MEASUREMENT METHOD

#2
20250290827
2025-09-18

METHOD AND SYSTEM FOR EXTRACTING INFORMATION FROM AN OPTICAL SIGNAL

#3
20250189717
2025-06-12

MULTICORE OPTICAL FIBER, OPTICAL COMBINER, AND METHOD OF MEASURING FIBER CHARACTERISTICS

#4
20250076152
2025-03-06

Mapping connectivity of optical fibers between remote locations

#5
20240353289
2024-10-24

LIGHT INTENSITY DISTRIBUTION PATTERN MEASURING DEVICE AND METHOD

#6
20240344928
2024-10-17

DEVICE, METHOD AND SYSTEM FOR CALCULATING POWER COUPLING COEFFICIENTS BETWEEN CORES

#7
20240337559
2024-10-10

DEVICE AND METHOD FOR CONVEYING AND LIVE CONTROLLING OF LIGHT BEAMS

#8
20240068904
2024-02-29

METHOD OF ASSEMBLING OPTICAL MODULE

#9
20240011866
2024-01-11

MODE-DEPENDENT LOSS MEASUREMENT DEVICE AND MODE-DEPENDENT LOSS MEASUREMENT METHOD

#10
20230358637
2023-11-09

Apparatuses and methods for analyzing multiple optical signals in parallel

#11
20230327759
2023-10-12

MEASUREMENT APPARATUS AND METHOD FOR NONLINEAR DAMAGES IN OPTICAL LINK

#12
20230184623
2023-06-15

METHODS AND APPARATUSES FOR OPTICAL AND GEOMETRIC PARAMETER EXTRACTION FOR PHOTONIC INTEGRATED CIRCUITS

#13
20220381644
2022-12-01

METHOD AND SYSTEM FOR EXTRACTING INFORMATION FROM AN OPTICAL SIGNAL

#14
20220307900
2022-09-29

Optical spectrum analyzer and pulse-modulated light measurement method

#15
20220034750
2022-02-03

HYBRID AUTOMATED TESTING EQUIPMENT FOR TESTING OF OPTICAL-ELECTRICAL DEVICES

#16
20210372882
2021-12-02

Mode-dependent loss measurement device and mode-dependent loss measuring method

#17
20210318147
2021-10-14

Optical fiber characteristics measurement apparatus and optical fiber characteristics measurement method

#18
20210239568
2021-08-05

Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing

#19
20210006331
2021-01-07

Systems and methods for measuring a modal delay and a modal bandwidth

#20
20210003472
2021-01-07

Multi-wavelength pulsed optical test instrument

#21
20200232878
2020-07-23

TESTING OF INTEGRATED OPTICAL MIXERS

#22
20200124498
2020-04-23

Method and system for multi-link connection testing

#23
20200096416
2020-03-26

Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing

#24
20190277724
2019-09-12

Mult-wavelength pulsed optical test instrument

#25
20190219480
2019-07-18

Single-shot network analyzer (SINA)

#26
20190170609
2019-06-06

Birefringent multi-peak optical reference element and birefringent sensor system

#27
20180375580
2018-12-27

Transmission apparatus, reception apparatus, and method for estimating characteristics of transmission line

#28
20180340861
2018-11-29

Measuring optical array polarity, power, and loss using a position sensing detector and photodetector-equipped optical testing device

#29
20180283985
2018-10-04

Fiber-optic testing source and fiber-optic testing receiver for multi-fiber cable testing

#30
20180095003
2018-04-05

Optical frequency measurement and control using dual optical-frequency combs

#31
20170307475
2017-10-26

Spectrally efficient optical frequency-domain reflectometry using I/Q detection

#32
20170268959
2017-09-21

Spatial-mode optical power measurement method and apparatus

#33
20160209295
2016-07-21

Birefringent multi-peak optical reference element and birefringent sensor system

#34
20150362404
2015-12-17

Method for measuring light physical constants and device for estimating light physical constants

#35
20140319354
2014-10-30

Methods and apparatus for measuring multimode optical fiber bandwidth

#36
20140253915
2014-09-11

Coherent dual parametric frequency comb for ultrafast chromatic dispersion measurement in an optical transmission link

#37
20140098361
2014-04-10

Measuring modal content of multi-moded fibers

#38
20110032517
2011-02-10

Optical fiber characteristic measuring device and method

#39
20100309456
2010-12-09

System and method for measuring dispersion

#40
20100253936
2010-10-07

Measurement of nonlinear effects of an optical path

#41
20100225900
2010-09-09

Optical-fiber-characteristic measuring device and optical-fiber-characteristic measuring method

#42
20090297140
2009-12-03

Measuring chromatic dispersion in an optical wavelength channel of an optical fiber link

#43
20090245789
2009-10-01

Methods and apparatus for optical modulation amplitude measurement

#44
20090141267
2009-06-04

Optical-fiber-characteristic measuring apparatus and optical-fiber-characteristic measuring method

#45
20090066937
2009-03-12

Method of measuring the differential group delay of an optical fiber connection

#46
20080165348
2008-07-10

APPARATUS FOR MONITORING OPTICAL FIBER LINK

#47
20080063408
2008-03-13

Diagnostic method and diagnostic chip for determining the bandwidth of optical fibers

#48
20070177876
2007-08-02

Chromatic dispersion monitoring method and chromatic dispersion monitoring apparatus, and optical transmission system

#49
20070146721
2007-06-28

System and method for measurement of optical parameters and characterization of multiport optical devices

#50
20070058158
2007-03-15

Measurement and characterization of nonlinear phase shifts

#51
20060274321
2006-12-07

Common-path point-diffraction phase-shifting interferometer

#52
20060222370
2006-10-05

Methods and apparatus for optical modulation amplitude measurement

#53
20060124842
2006-06-15

Measuring method and measuring apparatus for coherent crosstalk light

#54
20060109452
2006-05-25

Device and method for chromatic dispersion measurement

#55
20060066838
2006-03-30

Method and apparatus for determining the nonlinear properties of devices and fibers

#56
20050286057
2005-12-29

Load dependent analyzing optical components

#57
20050259243
2005-11-24

Method and apparatus for testing optical fiber cables

#58
20050225746
2005-10-13

Device method and program for measuring polarization mode dispersion and recording medium recording the program

#59
20050174577
2005-08-11

Heterodyne optical network analysis that utilizes signal modulation

#60
20050146710
2005-07-07

Chromatic dispersion measurement and compensation

#61
20050110981
2005-05-26

Method and apparatus for measuring chromatic dispersion

#62
20050052638
2005-03-10

Polarization mode dispersion measuring device, method, recording medium

#63
20050024645
2005-02-03

Method and apparatus for measurement of group delay