EP 1166075 A1 20020102 - APPARATUS FOR MEASURING THE PROPERTIES OF AN OPTICAL FIBER
Title (en)
APPARATUS FOR MEASURING THE PROPERTIES OF AN OPTICAL FIBER
Title (de)
APPARAT ZUR MESSUNG DER EIGENSCHAFTEN EINER OPTISCHEN FASER
Title (fr)
APPAREIL POUR MESURER LES PROPRIETES D'UNE FIBRE OPTIQUE
Publication
Application
Priority
- US 0007900 W 20000323
- US 12850499 P 19990409
- US 12970699 P 19990416
Abstract (en)
[origin: WO0062033A1] Disclosed is an apparatus for measuring the properties of an optical waveguide fiber. The apparatus is free of apertures, lenses, and mirrors usually required in the measurement of certain waveguide fiber properties. The apparatus employs an optical switch at the launch end of the optical fiber to be tested and another optical switch at the output end of the optical fiber to be tested. The switches preserve the mode power distribution, particularly the spot size, of light passing therethrough. The apparatus may be used to measure bandwidth or attenuation of a multimode waveguide fiber, both of which are affected by launched and detected mode power distribution.
IPC 1-7
IPC 8 full level
G01M 11/00 (2006.01)
CPC (source: EP KR)
G01M 11/02 (2013.01 - KR); G01M 11/3127 (2013.01 - EP); G01M 11/335 (2013.01 - EP)
Citation (search report)
See references of WO 0062033A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0062033 A1 20001019; AU 4640900 A 20001114; BR 0009406 A 20030305; CA 2369006 A1 20001019; CN 1360676 A 20020724; EP 1166075 A1 20020102; JP 2002541474 A 20021203; KR 20020021085 A 20020318; MX PA01010149 A 20020604
DOCDB simple family (application)
US 0007900 W 20000323; AU 4640900 A 20000323; BR 0009406 A 20000323; CA 2369006 A 20000323; CN 00810209 A 20000323; EP 00928128 A 20000323; JP 2000611047 A 20000323; KR 20017012847 A 20011008; MX PA01010149 A 20000323