JPS6457209A - Optical input/output parts - Google Patents

Optical input/output parts

Info

Publication number
JPS6457209A
JPS6457209A JP21566087A JP21566087A JPS6457209A JP S6457209 A JPS6457209 A JP S6457209A JP 21566087 A JP21566087 A JP 21566087A JP 21566087 A JP21566087 A JP 21566087A JP S6457209 A JPS6457209 A JP S6457209A
Authority
JP
Japan
Prior art keywords
light beam
wavelength
optical waveguide
optical
reflecting
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
JP21566087A
Other languages
Japanese (ja)
Inventor
Masaaki Tojo
Tomoaki Ieda
Noboru Kurata
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP21566087A priority Critical patent/JPS6457209A/en
Publication of JPS6457209A publication Critical patent/JPS6457209A/en
Pending legal-status Critical Current

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  • Optical Integrated Circuits (AREA)

Abstract

PURPOSE:To decrease the number of parts, and to simplify the optical axis adjustment by using an optical demultiplexer of an optical waveguide type. CONSTITUTION:A light beam of wavelength lambda2 which is made incident on an optical waveguide part 2b from an optical fiber 6 is reflected by a filter 3a for reflecting the light beam of wavelength lambda2, travels to an optical waveguide part 2c from the optical waveguide 2b, passes through a filter 3b for allowing the light beam of wavelength lambda2 to transmit through, and reflecting a light beam of wavelength lambda1, made incident on a light receiving element 5 such as a pin photodiode, etc., and converted to an electric signal. Also, since the filter 3b for allowing transmission of the light beam of wavelength lambda2, and reflecting the light beam of wavelength lambda1 is used in the optical waveguide part 2c, the light beam of lambda1 is scarcely made incident on the light receiving element 5, therefore, the isolation can be enlarged. In such a way, since a light emitting element 4 and the light receiving element 5 can be connected directly to a demultiplexing waveguide, the optical axis adjustment is simplified.
JP21566087A 1987-08-28 1987-08-28 Optical input/output parts Pending JPS6457209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21566087A JPS6457209A (en) 1987-08-28 1987-08-28 Optical input/output parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21566087A JPS6457209A (en) 1987-08-28 1987-08-28 Optical input/output parts

Publications (1)

Publication Number Publication Date
JPS6457209A true JPS6457209A (en) 1989-03-03

Family

ID=16676068

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21566087A Pending JPS6457209A (en) 1987-08-28 1987-08-28 Optical input/output parts

Country Status (1)

Country Link
JP (1) JPS6457209A (en)

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