JPS5719701A - Multimode optical fiber - Google Patents

Multimode optical fiber

Info

Publication number
JPS5719701A
JPS5719701A JP9384080A JP9384080A JPS5719701A JP S5719701 A JPS5719701 A JP S5719701A JP 9384080 A JP9384080 A JP 9384080A JP 9384080 A JP9384080 A JP 9384080A JP S5719701 A JPS5719701 A JP S5719701A
Authority
JP
Japan
Prior art keywords
distribution
radius
optical fiber
wavelength
refractive index
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.)
Pending
Application number
JP9384080A
Other languages
Japanese (ja)
Inventor
Kaname Jinguuji
Katsunari Okamoto
Yasuji Omori
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9384080A priority Critical patent/JPS5719701A/en
Publication of JPS5719701A publication Critical patent/JPS5719701A/en
Pending 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
    • G02B6/028—Optical fibres with cladding with or without a coating with core or cladding having graded refractive index
    • G02B6/0288—Multimode fibre, e.g. graded index core for compensating modal dispersion

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To obtain a mutiple mode optical fiber realizing a wide band transmission which extends to wide vand of wavelength by operating a distribution mode of an additive concentration. CONSTITUTION:On an optical fiber consisting of a core of radius (a) and a clad of radius (b), a distribution of a refractive index having the broadest transmission band is as a following equaition. Where (r) represents a radius, n1 a refractive index at a core center, DELTA a difference of specific refractive indices between a core center and a clad part, alphaopt a number so called an optimum refractive index distribution coefficient, F(r) a function of the radius (r), respectively. In general, since alphaopt depends on a wavelength, two kinds of additives are added into this optical fiber so as to make a prescribed distribution mode and to make therefractive index distribution coefficient alpha has a wavelength dependency which almost coincides with alphaopt as shown in the figure, and, then, a broad band transmission is realized. Further, the prescribed distribution mode is derivated on the condition that the refractive index distribution coincides with said ideal refraction index distribution at one optimizing wavelength and in its neighbourhood or at two optimizing wavelengthes.
JP9384080A 1980-07-11 1980-07-11 Multimode optical fiber Pending JPS5719701A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9384080A JPS5719701A (en) 1980-07-11 1980-07-11 Multimode optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9384080A JPS5719701A (en) 1980-07-11 1980-07-11 Multimode optical fiber

Publications (1)

Publication Number Publication Date
JPS5719701A true JPS5719701A (en) 1982-02-02

Family

ID=14093584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9384080A Pending JPS5719701A (en) 1980-07-11 1980-07-11 Multimode optical fiber

Country Status (1)

Country Link
JP (1) JPS5719701A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005049873A (en) * 2003-07-28 2005-02-24 Draka Fibre Technology Bv Multimode optical fiber having refractive index profile, optical communication system using same, and method for manufacturing the fiber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005049873A (en) * 2003-07-28 2005-02-24 Draka Fibre Technology Bv Multimode optical fiber having refractive index profile, optical communication system using same, and method for manufacturing the fiber

Similar Documents

Publication Publication Date Title
ATE116450T1 (en) FIBER OPTICAL CONNECTOR.
ES481539A1 (en) Multicomponent optical waveguide having index gradient
JPS5565909A (en) Optical fiber
EP0128024A3 (en) Polarization-retaining single-mode optical waveguide
NO841986L (en) SINGLE-MODE TYPE-MODE OPTICAL WAVE GUIDE WITH LOW DISTRIBUTION AND LOW LOSS
JPS5652705A (en) Super wide band single mode optical fiber
JPS5719701A (en) Multimode optical fiber
JPS5799794A (en) Optical signal amplifier
JPS5652706A (en) Single mode optical fiber with intermediate layer
JPS5737304A (en) Optical fiber
FR2441858A1 (en) Mono or multi-mode optical fibre - has central monomode core with multimode sheath esp. for data transmission
JPS5737305A (en) Polarization plane preserving optical fiber
JPS5699306A (en) Single mode optical fiber which preserves plane of polarization
JPS5732404A (en) Optical fiber of lower mode
JPS5772119A (en) Optical branching filter
JPS5635106A (en) Optical fiber coupler
JPS5381136A (en) Fiber for optical transmission
JPS5229234A (en) Optical fiber
JPS5232341A (en) Optical fiber for electro communication
JPS5672404A (en) Optical fiber for infrared-ray transmission
JPS5465554A (en) Combined wide band optical fiber
FR2365136A1 (en) Low-loss optical waveguide of small dispersion - has sheathing and core with variable refractive index for optical fibre transmission
JPS52146647A (en) W type optical fiber
JPS5555302A (en) Optical fiber
FR2368050A1 (en) Optical fibre consisting of a solid core and liquid in a sheath - the liquid having lower refractive index than the core