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1. WO2004025878 - CODED POLARIZATION-DEPENDENT ANALYZING

Publication Number WO/2004/025878
Publication Date 25.03.2004
International Application No. PCT/EP2002/010285
International Filing Date 13.09.2002
IPC
G01J 4/04 2006.01
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
4Measuring polarisation of light
04Polarimeters using electric detection means
G01M 11/00 2006.01
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
11Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
H04B 10/08 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
02Details
08Equipment for monitoring, testing or fault measuring
H04B 10/18 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
12Transmission through light guides, e.g. optical fibres
18Arrangements for reducing or eliminating distortion or dispersion, e.g. equalisers
CPC
G01M 11/33
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
11Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
30Testing of optical devices, constituted by fibre optics or optical waveguides
33with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
G01M 11/337
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
11Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
30Testing of optical devices, constituted by fibre optics or optical waveguides
33with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
337by measuring polarization dependent loss [PDL]
Applicants
  • AGILENT TECHNOLOGIES INC. [US]/[US] (AllExceptUS)
  • HAISCH, Hansjoerg [DE]/[DE] (UsOnly)
Inventors
  • HAISCH, Hansjoerg
Agents
  • BARTH, Daniel
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CODED POLARIZATION-DEPENDENT ANALYZING
(FR) ANALYSE DE SIGNAUX OPTIQUES EN FONCTION DE LA POLARISATION PAR CODAGE
Abstract
(EN)
The present invention relates to an apparatus and to a method of polarization dependent analyzing an optical signal (6) transmitted through a DUT (10), comprising the steps of: splitting the optical signal (6) into a first signal part (16) having an initial first polarization and a second signal part (20) having an initial second polarization, coding the first signal part (16) using a first code (17, code 1) and coding the second signal part (20) using a second code (17, code 2), providing the coded signal parts (16, 6a, 20, 6b, 6c, 6d) to the DUT (10), detecting a DUT signal (32) coming from the DUT (10) in response to the coded signal parts (16, 6a, 20, 6b, 6c, 6d), and determining a first part (a, c) of the DUT signal (32) corresponding to the first signal part (16) by means of the first code ( 17, code 1) and determining a second part (b, d) of the DUT signal (32) corresponding to the second signal part (20) by means of the second code (17, code 2).
(FR)
L'invention concerne un appareil et un procédé permettant d'analyser un signal optique (6) émis à travers un dispositif à l'essai (DUT) (10), en fonction de la polarisation. Le procédé selon l'invention comprend les étapes consistant à : diviser le signal optique (6) en une première composante de signal (16) présentant une première polarisation de départ, ainsi qu'en une deuxième composante de signal (20) présentant une deuxième polarisation de départ ; coder la première composante de signal (16) au moyen d'un premier code (17, code 1) et coder la deuxième composante de signal (20) au moyen d'un deuxième code (17, code 2) ; entrer les composantes de signal codées (16, 6a, 20, 6b, 6c, 6d) dans le DUT (10) ; détecter un signal DUT (32) généré par ledit DUT (10) en réponse auxdites composantes de signal codées (16, 6a, 20, 6b, 6c, 6d) ; et déterminer une première composante (a, c) du signal DUT (32) correspondant à ladite première composante de signal (16) au moyen dudit premier code (17, code 1) et déterminer une deuxième composante (b, d) du signal DUT (32) correspondant à ladite deuxième composante de signal (20) au moyen dudit deuxième code (17, code 2).
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