FR2425637A1 - Procede pour mesurer l'absorption des fibres optiques - Google Patents
Procede pour mesurer l'absorption des fibres optiquesInfo
- Publication number
- FR2425637A1 FR2425637A1 FR7835570A FR7835570A FR2425637A1 FR 2425637 A1 FR2425637 A1 FR 2425637A1 FR 7835570 A FR7835570 A FR 7835570A FR 7835570 A FR7835570 A FR 7835570A FR 2425637 A1 FR2425637 A1 FR 2425637A1
- Authority
- FR
- France
- Prior art keywords
- fibre
- level meter
- light
- point
- opto
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
- G01M11/33—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
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
A.DANS LE PROCEDE POUR MESURER L'ABSORPTION PRODUITE PAR LES FIBRES OPTIQUES, ON INTRODUIT UN SIGNAL LUMINEUX DANS LA FIBRE, PUIS LA RACCOURCIT, MESURE L'INTENSITE LUMINEUSE AVANT ET APRES RACCOURCISSEMENT ET COMPARE LES DEUX VALEURS. B.ENTRE LA SOURCE ET L'INTRODUCTION DANS LA FIBRE, ON DERIVE UNE PORTION CONSTANTE DE L'ENERGIE LUMINEUSE QUE L'ON TRANSFORME EN INTENSITE QUE L'ON ENREGISTRE AU MOYEN D'UNE PHOTODIODE. C.CE DISPOSITIF PERMET DE MAINTENIR CONSTANTE L'ENERGIE DE LA SOURCE LUMINEUSE UTILISEE PENDANT UNE LONGUE DUREE ET DE SIMPLIFIER L'EXECUTION DE LA MESURE.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2819979A DE2819979C2 (de) | 1978-05-08 | 1978-05-08 | Verfahren zur Messung der Dämpfung von Lichtleitfasern |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2425637A1 true FR2425637A1 (fr) | 1979-12-07 |
FR2425637B1 FR2425637B1 (fr) | 1983-08-26 |
Family
ID=6038833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7835570A Granted FR2425637A1 (fr) | 1978-05-08 | 1978-12-18 | Procede pour mesurer l'absorption des fibres optiques |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH641563A5 (fr) |
DE (1) | DE2819979C2 (fr) |
FR (1) | FR2425637A1 (fr) |
IT (1) | IT1100174B (fr) |
NL (1) | NL7811895A (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE456190B (sv) * | 1983-10-14 | 1988-09-12 | Ericsson Telefon Ab L M | Forfarande att i ett fiberoptiskt transmissionssystem meta dispersionen hos den transmitterande optiska fibern |
DE3425671A1 (de) * | 1984-07-12 | 1986-01-23 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren und vorrichtung zum messen der daempfung an lichtwellenleitern |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2313675A1 (fr) * | 1975-06-03 | 1976-12-31 | Int Standard Electric Corp | Appareil de mesure de l'attenuation de fibres optiques |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2280072A1 (fr) * | 1974-07-26 | 1976-02-20 | Douillie Remy | Procede et equipement de mesure permettant de localiser une cassure sur un cable optique |
-
1978
- 1978-05-08 DE DE2819979A patent/DE2819979C2/de not_active Expired
- 1978-11-21 IT IT30001/78A patent/IT1100174B/it active
- 1978-12-06 NL NL7811895A patent/NL7811895A/xx not_active Application Discontinuation
- 1978-12-18 FR FR7835570A patent/FR2425637A1/fr active Granted
-
1979
- 1979-02-28 CH CH197379A patent/CH641563A5/de not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2313675A1 (fr) * | 1975-06-03 | 1976-12-31 | Int Standard Electric Corp | Appareil de mesure de l'attenuation de fibres optiques |
Non-Patent Citations (1)
Title |
---|
EXBK/78 * |
Also Published As
Publication number | Publication date |
---|---|
DE2819979A1 (de) | 1979-11-22 |
CH641563A5 (en) | 1984-02-29 |
FR2425637B1 (fr) | 1983-08-26 |
NL7811895A (nl) | 1979-11-12 |
DE2819979C2 (de) | 1982-07-01 |
IT7830001A0 (it) | 1978-11-21 |
IT1100174B (it) | 1985-09-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |