JPS5655909A - Optical fiber for optical communication and optical transmission apparatus - Google Patents

Optical fiber for optical communication and optical transmission apparatus

Info

Publication number
JPS5655909A
JPS5655909A JP2323379A JP2323379A JPS5655909A JP S5655909 A JPS5655909 A JP S5655909A JP 2323379 A JP2323379 A JP 2323379A JP 2323379 A JP2323379 A JP 2323379A JP S5655909 A JPS5655909 A JP S5655909A
Authority
JP
Japan
Prior art keywords
optical
refractive indexes
transmission line
central axis
optical fiber
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
JP2323379A
Other languages
Japanese (ja)
Other versions
JPH0211881B2 (en
Inventor
Junichi Nishizawa
Zenichi Kiyasu
Shojiro Kawakami
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.)
Semiconductor Research Foundation
Original Assignee
Semiconductor Research Foundation
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 Semiconductor Research Foundation filed Critical Semiconductor Research Foundation
Priority to JP2323379A priority Critical patent/JPS5655909A/en
Publication of JPS5655909A publication Critical patent/JPS5655909A/en
Publication of JPH0211881B2 publication Critical patent/JPH0211881B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Optical Communication System (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To make the mean velocities of the light wave advancing along the axis and the light wave advancing zigzag approximately the same by specifying the refractive indexes for an optical fiber of the distribution in which the refractive indexes are high along the central axis and decrease gradually as they go further from the axis. CONSTITUTION:Light emitted from a luminous body A such as semiconductor laser having undergone pulse or amplitude modulation is entered via a lens B from one end into a transmission line C using an optical fiber having the part in which the refractive indexes n conform to n=n0{1-1/2(x/L)<2>} and the part conforming to the distribution other than this where the refractive indexes on the central axis are defined as n0, distance from the central axis as x and a constant as L. The light emitted from the transmission line C enters a detector E directly or via a lens D, but since there is virtually no difference in the advance speed of the light in the transmission line, the degradation of waveform is extremely small and the signal may be detected well.
JP2323379A 1979-02-27 1979-02-27 Optical fiber for optical communication and optical transmission apparatus Granted JPS5655909A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2323379A JPS5655909A (en) 1979-02-27 1979-02-27 Optical fiber for optical communication and optical transmission apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2323379A JPS5655909A (en) 1979-02-27 1979-02-27 Optical fiber for optical communication and optical transmission apparatus

Publications (2)

Publication Number Publication Date
JPS5655909A true JPS5655909A (en) 1981-05-16
JPH0211881B2 JPH0211881B2 (en) 1990-03-16

Family

ID=12104890

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2323379A Granted JPS5655909A (en) 1979-02-27 1979-02-27 Optical fiber for optical communication and optical transmission apparatus

Country Status (1)

Country Link
JP (1) JPS5655909A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920856A (en) * 1987-07-30 1990-05-01 Brueninghaus Hydraulik Gmbh Axial piston machine of the swashplate or bent axis type having slot control and pressure balancing passages

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037445A (en) * 1973-06-18 1975-04-08
JPS5315841A (en) * 1976-07-26 1978-02-14 Western Electric Co Circular symmetry optical fiber waveguide path
JPS5339141A (en) * 1976-09-21 1978-04-10 Corning Glass Works Optical waveguide tube
JPS5381136A (en) * 1976-12-27 1978-07-18 Nippon Telegr & Teleph Corp <Ntt> Fiber for optical transmission

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037445A (en) * 1973-06-18 1975-04-08
JPS5315841A (en) * 1976-07-26 1978-02-14 Western Electric Co Circular symmetry optical fiber waveguide path
JPS5339141A (en) * 1976-09-21 1978-04-10 Corning Glass Works Optical waveguide tube
JPS5381136A (en) * 1976-12-27 1978-07-18 Nippon Telegr & Teleph Corp <Ntt> Fiber for optical transmission

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4920856A (en) * 1987-07-30 1990-05-01 Brueninghaus Hydraulik Gmbh Axial piston machine of the swashplate or bent axis type having slot control and pressure balancing passages

Also Published As

Publication number Publication date
JPH0211881B2 (en) 1990-03-16

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