Title:
METHOD OF EVALUATING AND MEASURING POLARIZATION STATE, POLARIZATION STATE AND POLARIZATION MODE DISPERSION AND APPARATUS THEREFOR
Document Type and Number:
WIPO Patent Application WO/1997/002476
Kind Code:
A1
Abstract:
A polarization state and polarization characteristics of a light transmitting medium are evaluated by Jones vectors containing Stokes vectors and Jones matrix. Rays of light of under three kinds of polarized states are applied from an incidence side apparatus (2) to a light transmitting medium (1), and a branched beam of light I on the outgoing side and branched beams of light Q, U and V passing through analyzers in directions of 0�, 90� and 45� are detected as the Stokes vectors by light intensity. The Stokes vectors are normalized such as S1 = Q/I, S2 = U/I and S3 = V/I, and are re-normalized in a unit length such as S1/(S12 + S22 + S32) => S1. A polarization evaluation portion (15) actually measures the Jones vector containing the re-normalized Stokes vector as its component and evaluates the polarized state of the light transmitting medium (1). A polarization characteristics evaluation portion (13) actually measures a Jones matrix containing the re-normalized Stokes vector as the components thereof and evaluates the polarization characteristics of the light transmitting medium (1).
Inventors:
ASO OSAMU (JP)
OHSHIMA ISAMU (JP)
OGOSHI HARUKI (JP)
OHSHIMA ISAMU (JP)
OGOSHI HARUKI (JP)
Application Number:
PCT/JP1996/001786
Publication Date:
January 23, 1997
Filing Date:
June 27, 1996
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
ASO OSAMU (JP)
OHSHIMA ISAMU (JP)
OGOSHI HARUKI (JP)
ASO OSAMU (JP)
OHSHIMA ISAMU (JP)
OGOSHI HARUKI (JP)
International Classes:
G01J4/00; G01J4/04; G01M11/00; G01N21/21; (IPC1-7): G01J4/00
Foreign References:
| JPH05209791A | 1993-08-20 | |||
| JPH05273082A | 1993-10-22 |
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