JPS5652706A - Single mode optical fiber with intermediate layer - Google Patents

Single mode optical fiber with intermediate layer

Info

Publication number
JPS5652706A
JPS5652706A JP13045279A JP13045279A JPS5652706A JP S5652706 A JPS5652706 A JP S5652706A JP 13045279 A JP13045279 A JP 13045279A JP 13045279 A JP13045279 A JP 13045279A JP S5652706 A JPS5652706 A JP S5652706A
Authority
JP
Japan
Prior art keywords
refractive index
clad
intermediate layer
core
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
JP13045279A
Other languages
Japanese (ja)
Other versions
JPS583206B2 (en
Inventor
Katsunari Okamoto
Takao Edahiro
Akio Kawana
Tetsuo Miya
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 JP54130452A priority Critical patent/JPS583206B2/en
Priority to CA361,298A priority patent/CA1124119A/en
Priority to US06/192,704 priority patent/US4372647A/en
Priority to DE8080106090T priority patent/DE3071570D1/en
Priority to EP80106090A priority patent/EP0026937B1/en
Publication of JPS5652706A publication Critical patent/JPS5652706A/en
Publication of JPS583206B2 publication Critical patent/JPS583206B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE:To expand a band width of transmittable light and improve transmission characteristics by providing an intermediate layer of a refractive index smaller than that of a core and a clad between the core and the clad. CONSTITUTION:An intermediate layer 3 having a refractive index n3 smaller than refractive indexes n1, n2 is provided between a core 1 having the refractive index n1 and a clad 2 having the refractive index n2 enclosing this, and these are so constituted that the refractive index difference DELTA1 between the core 1 and the clad 2 and the refractive index difference DELTA2 between the intermediate layer 3 and the clad 2 become mutually equal and of opposite polarities. With such constitution, the entire dispersion is made <=+ or -1ps/Km/nm in a wide band including the wavelengths at which the transmission losses of a quartz optical fiber becomes minimum; therefore, super wide band and super long distance transmission can be performed by WDM (wavelength multiplexing).
JP54130452A 1979-10-08 1979-10-08 Single mode optical fiber with intermediate layer Expired JPS583206B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP54130452A JPS583206B2 (en) 1979-10-08 1979-10-08 Single mode optical fiber with intermediate layer
CA361,298A CA1124119A (en) 1979-10-08 1980-10-01 Single mode optical fibers
US06/192,704 US4372647A (en) 1979-10-08 1980-10-01 Single mode optical fibers
DE8080106090T DE3071570D1 (en) 1979-10-08 1980-10-07 Single mode optical fibers
EP80106090A EP0026937B1 (en) 1979-10-08 1980-10-07 Single mode optical fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54130452A JPS583206B2 (en) 1979-10-08 1979-10-08 Single mode optical fiber with intermediate layer

Publications (2)

Publication Number Publication Date
JPS5652706A true JPS5652706A (en) 1981-05-12
JPS583206B2 JPS583206B2 (en) 1983-01-20

Family

ID=15034564

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54130452A Expired JPS583206B2 (en) 1979-10-08 1979-10-08 Single mode optical fiber with intermediate layer

Country Status (1)

Country Link
JP (1) JPS583206B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5720707A (en) * 1980-07-14 1982-02-03 Nippon Telegr & Teleph Corp <Ntt> Single mode optical fiber with groove having different refractive index
JPS607407A (en) * 1983-06-28 1985-01-16 Sumitomo Electric Ind Ltd Optical fiber and its manufacture
JPH03100804U (en) * 1981-09-03 1991-10-22
US5790292A (en) * 1995-01-13 1998-08-04 Fujitsu Limited Optical fiber transmission line
EP2135122A1 (en) * 2007-03-15 2009-12-23 Liekki OY Optical fiber structure and a method of producing thereof
JP2010044426A (en) * 1999-01-04 2010-02-25 Alcatel-Lucent Optical fiber with low slope of wavelength dispersion
WO2013099555A1 (en) * 2011-12-28 2013-07-04 住友電気工業株式会社 Multicore optical fiber

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4976538A (en) * 1972-11-25 1974-07-24
JPS4990145A (en) * 1972-12-27 1974-08-28
JPS5015565A (en) * 1973-06-07 1975-02-19
JPS50131535A (en) * 1974-04-03 1975-10-17

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4976538A (en) * 1972-11-25 1974-07-24
JPS4990145A (en) * 1972-12-27 1974-08-28
JPS5015565A (en) * 1973-06-07 1975-02-19
JPS50131535A (en) * 1974-04-03 1975-10-17

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6023321B2 (en) * 1980-07-14 1985-06-07 日本電信電話株式会社 Index grooved single mode optical fiber
JPS5720707A (en) * 1980-07-14 1982-02-03 Nippon Telegr & Teleph Corp <Ntt> Single mode optical fiber with groove having different refractive index
JPH03100804U (en) * 1981-09-03 1991-10-22
JPS607407A (en) * 1983-06-28 1985-01-16 Sumitomo Electric Ind Ltd Optical fiber and its manufacture
US5790292A (en) * 1995-01-13 1998-08-04 Fujitsu Limited Optical fiber transmission line
US5856881A (en) * 1995-01-13 1999-01-05 Fujitsu Limited Optical fiber transmission line
JP2010044426A (en) * 1999-01-04 2010-02-25 Alcatel-Lucent Optical fiber with low slope of wavelength dispersion
EP2135122A1 (en) * 2007-03-15 2009-12-23 Liekki OY Optical fiber structure and a method of producing thereof
JP2010521702A (en) * 2007-03-15 2010-06-24 リエッキ オイ Optical fiber structure and manufacturing method thereof
EP2135122A4 (en) * 2007-03-15 2011-08-24 Nlight Oy Optical fiber structure and a method of producing thereof
US8620126B2 (en) 2007-03-15 2013-12-31 Nlight Oy Optical fiber structure and a method of producing thereof
WO2013099555A1 (en) * 2011-12-28 2013-07-04 住友電気工業株式会社 Multicore optical fiber
JP2013137430A (en) * 2011-12-28 2013-07-11 Sumitomo Electric Ind Ltd Multi-core optical fiber
US9547122B2 (en) 2011-12-28 2017-01-17 Sumitomo Electric Industries, Ltd. Multi-core optical fiber

Also Published As

Publication number Publication date
JPS583206B2 (en) 1983-01-20

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