IT1059487B - Optical equaliser lens system - is for signal transmission through optical waveguides and has abruptly changing refractive index profile (NL 14.9.77) - Google Patents

Optical equaliser lens system - is for signal transmission through optical waveguides and has abruptly changing refractive index profile (NL 14.9.77)

Info

Publication number
IT1059487B
IT1059487B IT6796076A IT6796076A IT1059487B IT 1059487 B IT1059487 B IT 1059487B IT 6796076 A IT6796076 A IT 6796076A IT 6796076 A IT6796076 A IT 6796076A IT 1059487 B IT1059487 B IT 1059487B
Authority
IT
Italy
Prior art keywords
optical
equaliser
distance
refractive index
signal transmission
Prior art date
Application number
IT6796076A
Other languages
Italian (it)
Inventor
Vita P Di
Original Assignee
Oselt Centro Studi E Lab Telec
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 Oselt Centro Studi E Lab Telec filed Critical Oselt Centro Studi E Lab Telec
Priority to IT6796076A priority Critical patent/IT1059487B/en
Priority to FR7706400A priority patent/FR2344038A1/en
Priority to CA273,270A priority patent/CA1069359A/en
Priority to DE19772710311 priority patent/DE2710311C3/en
Priority to NL7702591A priority patent/NL169788C/en
Priority to GB1065277A priority patent/GB1575319A/en
Application granted granted Critical
Publication of IT1059487B publication Critical patent/IT1059487B/en

Links

Landscapes

  • Optical Communication System (AREA)

Abstract

The equaliser is inserted between two waveguide sections, and has an optical system comprising two identical parallel lenses along an axis common to both sections. Each lens consists of two parts of converging lenses. The minimum distance between the line and the peak of each lens section (3, 4) is equal to the distance between the common axis (5) and the point of incidence (R) of a light ray (r) emerging at the greatest angle from the waveguide section (g). The ratio of this distance (w) and the distance between the common axis (5) and optical axis (A) is equal to the ratio (d/f) between the distance (d) between the lenses and their focal length (f).
IT6796076A 1976-03-12 1976-04-22 Optical equaliser lens system - is for signal transmission through optical waveguides and has abruptly changing refractive index profile (NL 14.9.77) IT1059487B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
IT6796076A IT1059487B (en) 1976-04-22 1976-04-22 Optical equaliser lens system - is for signal transmission through optical waveguides and has abruptly changing refractive index profile (NL 14.9.77)
FR7706400A FR2344038A1 (en) 1976-03-12 1977-03-04 LENS OPTICAL EQUALIZER FOR SIGNAL TRANSMISSION ON MULTIMODES OPTICAL GUIDES
CA273,270A CA1069359A (en) 1976-03-12 1977-03-07 Lens type optical equalizer for signal transmissions via multimode optical waveguides
DE19772710311 DE2710311C3 (en) 1976-03-12 1977-03-09 Optical equalizer for signal transmission via multimode optical waveguides
NL7702591A NL169788C (en) 1976-03-12 1977-03-10 ROAD LENGTH EQUALIZATION SYSTEM FOR SIGNAL TRANSFER WITH RADIATION CONDUCTORS.
GB1065277A GB1575319A (en) 1976-03-12 1977-03-14 Optical equalizers for signal transmission via multimode optical waveguides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6796076A IT1059487B (en) 1976-04-22 1976-04-22 Optical equaliser lens system - is for signal transmission through optical waveguides and has abruptly changing refractive index profile (NL 14.9.77)

Publications (1)

Publication Number Publication Date
IT1059487B true IT1059487B (en) 1982-05-31

Family

ID=11306731

Family Applications (1)

Application Number Title Priority Date Filing Date
IT6796076A IT1059487B (en) 1976-03-12 1976-04-22 Optical equaliser lens system - is for signal transmission through optical waveguides and has abruptly changing refractive index profile (NL 14.9.77)

Country Status (1)

Country Link
IT (1) IT1059487B (en)

Similar Documents

Publication Publication Date Title
US4021099A (en) Optical couplers for fiber optic communication links
US3614197A (en) Solid optical wave guide having a radially varying refractive index
AU564023B2 (en) Optical fibre delay line
CA2237319A1 (en) Device for focusing light through an optical component
CA2098903A1 (en) Optical Fiber Functional Device
JPS5669602A (en) Light guide device
GB1528242A (en) Coupler for optical communication system
JPS5511216A (en) Connecting optical system of light guide
EP0155379A3 (en) Arrangement for coupling a light wave guide to a semiconductor laser and method for manufacturing such an arrangement
US4484795A (en) Delay equalization for single mode optical fibers
GB2012984A (en) Optical coupler for fibre optics
IT1059487B (en) Optical equaliser lens system - is for signal transmission through optical waveguides and has abruptly changing refractive index profile (NL 14.9.77)
IT1062820B (en) Optical equaliser lens system - is for signal transmission through optical waveguides and has abruptly changing refractive index profile (NL 14.9.77)
CA1072790A (en) Full optical equalizer for transmission of signals via multimode optical wave guides
US4747651A (en) Three-way start splitter for optical wave guides
JPS57158604A (en) Light beam converting adaptor
JPS56147106A (en) Light variable attenuator
JPS5529825A (en) Photo coupling device
JPS5652713A (en) Optical fiber connecting terminal
JPS56164305A (en) Optical fiber dispersively delayed equalizer and its production
JPS5525060A (en) Photo artificial line
JPS57198425A (en) Optical branching and coupling circuit
JPS5727215A (en) Aperture number converting convex lens and optical transmission line using said lens
JPS5515107A (en) Axial aligning method of lens
FR2299657A1 (en) Conical mirror optical waveguide coupler - is for use in optical transmission systems and formed from glass or plastics