JPS5685710A - Glass waveguide path for fiber optics - Google Patents

Glass waveguide path for fiber optics

Info

Publication number
JPS5685710A
JPS5685710A JP16274279A JP16274279A JPS5685710A JP S5685710 A JPS5685710 A JP S5685710A JP 16274279 A JP16274279 A JP 16274279A JP 16274279 A JP16274279 A JP 16274279A JP S5685710 A JPS5685710 A JP S5685710A
Authority
JP
Japan
Prior art keywords
layer
waveguide path
path
contg
substrate
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
JP16274279A
Other languages
Japanese (ja)
Inventor
Tatsuo Izawa
Hidefumi Mori
Nobuo Shimizu
Taiji Murakami
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 JP16274279A priority Critical patent/JPS5685710A/en
Priority to US06/213,069 priority patent/US4425146A/en
Priority to CA000366893A priority patent/CA1145171A/en
Priority to FR8026682A priority patent/FR2486250A1/en
Priority to GB8040392A priority patent/GB2066805B/en
Priority to DE3047589A priority patent/DE3047589C2/en
Publication of JPS5685710A publication Critical patent/JPS5685710A/en
Pending legal-status Critical Current

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  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To enhance the stability of an optical waveguide path by interposing a buffer layer having a gradually changing expansion coefficient between a glass layer and a substrate for the path to reduce the strain. CONSTITUTION:On substrate 1 B2O3-SiO2 glass layer 2 is formed while gradually increasing the B2O3 content 0-10% in the through thickness direction, and lower clad layer 3 contg. 10% B2O3 is formed. Core layer 4 contg. 10% GeO2 and upper clad layer 5 contg. 10% B2O3 are then formed in order. In this structure an optical waveguide path section is composed of layers 3, 4, 5, and layer 2 changing the expansion coefficient is interposed between substrate 1 and optical wabeguide path sections 3, 4, 5. Thus, the strain is reduce considerably to prevent the breakdown of the optical waveguide path.
JP16274279A 1979-12-17 1979-12-17 Glass waveguide path for fiber optics Pending JPS5685710A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP16274279A JPS5685710A (en) 1979-12-17 1979-12-17 Glass waveguide path for fiber optics
US06/213,069 US4425146A (en) 1979-12-17 1980-12-04 Method of making glass waveguide for optical circuit
CA000366893A CA1145171A (en) 1979-12-17 1980-12-16 Glass waveguide for optical circuit and fabrication method thereof
FR8026682A FR2486250A1 (en) 1979-12-17 1980-12-16 GLASS WAVEGUIDE FOR OPTICAL CIRCUIT AND METHOD OF MANUFACTURE
GB8040392A GB2066805B (en) 1979-12-17 1980-12-17 Glass waveguide for optical circuit and fabrication method thereof
DE3047589A DE3047589C2 (en) 1979-12-17 1980-12-17 Process for the production of optical waveguides from glass for optical circuits and optical waveguides which can be produced according to this process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16274279A JPS5685710A (en) 1979-12-17 1979-12-17 Glass waveguide path for fiber optics

Publications (1)

Publication Number Publication Date
JPS5685710A true JPS5685710A (en) 1981-07-13

Family

ID=15760388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16274279A Pending JPS5685710A (en) 1979-12-17 1979-12-17 Glass waveguide path for fiber optics

Country Status (1)

Country Link
JP (1) JPS5685710A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636506A (en) * 1986-06-27 1988-01-12 Fujitsu Ltd Production of optical waveguide
JPH01169406A (en) * 1987-12-25 1989-07-04 Hitachi Ltd Waveguide type optical device
JPH01202702A (en) * 1988-02-09 1989-08-15 Hitachi Ltd Optical element and its manufacture
JPH0862441A (en) * 1994-08-16 1996-03-08 At & T Corp Optical device including substrate having thermal matching interface and waveguide structure
GB2345764A (en) * 1999-01-18 2000-07-19 Samsung Electronics Co Ltd Optical waveguide with varying dopant density in lower cladding layer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS636506A (en) * 1986-06-27 1988-01-12 Fujitsu Ltd Production of optical waveguide
JPH01169406A (en) * 1987-12-25 1989-07-04 Hitachi Ltd Waveguide type optical device
JPH01202702A (en) * 1988-02-09 1989-08-15 Hitachi Ltd Optical element and its manufacture
JPH0862441A (en) * 1994-08-16 1996-03-08 At & T Corp Optical device including substrate having thermal matching interface and waveguide structure
GB2345764A (en) * 1999-01-18 2000-07-19 Samsung Electronics Co Ltd Optical waveguide with varying dopant density in lower cladding layer

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