FR2247738A1 - Optical wave guide for telecommunications system - glass core has smaller refractive index glass sheath in plastic sleeve - Google Patents

Optical wave guide for telecommunications system - glass core has smaller refractive index glass sheath in plastic sleeve

Info

Publication number
FR2247738A1
FR2247738A1 FR7336677A FR7336677A FR2247738A1 FR 2247738 A1 FR2247738 A1 FR 2247738A1 FR 7336677 A FR7336677 A FR 7336677A FR 7336677 A FR7336677 A FR 7336677A FR 2247738 A1 FR2247738 A1 FR 2247738A1
Authority
FR
France
Prior art keywords
refractive index
core
glass
telecommunications system
sheath
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
Application number
FR7336677A
Other languages
French (fr)
Other versions
FR2247738B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NOLF MICHEL FR
Original Assignee
NOLF MICHEL FR
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NOLF MICHEL FR filed Critical NOLF MICHEL FR
Priority to FR7336677A priority Critical patent/FR2247738A1/en
Publication of FR2247738A1 publication Critical patent/FR2247738A1/en
Application granted granted Critical
Publication of FR2247738B1 publication Critical patent/FR2247738B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/032—Optical fibres with cladding with or without a coating with non solid core or cladding

Abstract

The optical waveguide is designed to have a negligible attenuation, and has the core (1) made from a very pure optical glass, the core (1) being surrounded by a liquid sheath (2) which is enclosed by a flexible outer sleeve (3) of plastics material e.g. polyethylene. The liquid sheath (2) has a refractive index which is slightly less than the refractive index of the glass core (1). The outer sleeve (3) pref. has a diameter of the order of several millimetres the core (1) having a diameter of between 50 and 100 microns. The liquid may be a form of ethylene glycol or methyl butane.
FR7336677A 1973-10-15 1973-10-15 Optical wave guide for telecommunications system - glass core has smaller refractive index glass sheath in plastic sleeve Granted FR2247738A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7336677A FR2247738A1 (en) 1973-10-15 1973-10-15 Optical wave guide for telecommunications system - glass core has smaller refractive index glass sheath in plastic sleeve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7336677A FR2247738A1 (en) 1973-10-15 1973-10-15 Optical wave guide for telecommunications system - glass core has smaller refractive index glass sheath in plastic sleeve

Publications (2)

Publication Number Publication Date
FR2247738A1 true FR2247738A1 (en) 1975-05-09
FR2247738B1 FR2247738B1 (en) 1976-06-18

Family

ID=9126383

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7336677A Granted FR2247738A1 (en) 1973-10-15 1973-10-15 Optical wave guide for telecommunications system - glass core has smaller refractive index glass sheath in plastic sleeve

Country Status (1)

Country Link
FR (1) FR2247738A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699290A1 (en) * 1992-12-16 1994-06-17 Eclairage Tech Optical fibre with liq. sleeve - has solid core of polystyrene, polymethacrylate or polycarbonate inside sleeve of poly:di:methyl:siloxane]

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699290A1 (en) * 1992-12-16 1994-06-17 Eclairage Tech Optical fibre with liq. sleeve - has solid core of polystyrene, polymethacrylate or polycarbonate inside sleeve of poly:di:methyl:siloxane]

Also Published As

Publication number Publication date
FR2247738B1 (en) 1976-06-18

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Legal Events

Date Code Title Description
ST Notification of lapse