JPS5541468A - Light branching filter device - Google Patents

Light branching filter device

Info

Publication number
JPS5541468A
JPS5541468A JP11546378A JP11546378A JPS5541468A JP S5541468 A JPS5541468 A JP S5541468A JP 11546378 A JP11546378 A JP 11546378A JP 11546378 A JP11546378 A JP 11546378A JP S5541468 A JPS5541468 A JP S5541468A
Authority
JP
Japan
Prior art keywords
light
optical fiber
wavelength
component
sent
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
JP11546378A
Other languages
Japanese (ja)
Inventor
Tsutomu Hashimoto
Toshio Takei
Masamitsu Saito
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11546378A priority Critical patent/JPS5541468A/en
Publication of JPS5541468A publication Critical patent/JPS5541468A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent mixture of different wavelength components, by taking out the light in each wavelength component through filter after distributing the light propagated through one optical fiber or optical fiber bundle in the light distributing section. CONSTITUTION:A light 6 of wavelengths lambda1 and lambda2 propagated through an optical fiber 3 is distributed into an optical fiber 4 and an optical fiber 5 in a light distributing section 11. The wavelength lambda1 component of the light 12 sent into the optical fiber 14, while the wavelength lambda2 component of the light 13 sent into the optical fiber 5 is picked up by a photo detector 10 through a low pass filter 15. Though the wave 4 is picked up by a photo detector 9 through a high pass filter length characteristics of both filters 14, 15 have slight reflection properties at the transmission wavelength, the light of wavelength lambda1 component slightly reflected by the high pass filter 14 is not sent into the optical fiber 5 in the light distributing section 11, and the light of wavelength lambda2 component slightly reflected by the low pass filter 15 is not sent into the optical fiber 4. Therefore, only the light of wavelength lambda1 component enters the photo detector 9, while only the light of wavelength lambda2 component enters the photo detector 10.
JP11546378A 1978-09-20 1978-09-20 Light branching filter device Pending JPS5541468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11546378A JPS5541468A (en) 1978-09-20 1978-09-20 Light branching filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11546378A JPS5541468A (en) 1978-09-20 1978-09-20 Light branching filter device

Publications (1)

Publication Number Publication Date
JPS5541468A true JPS5541468A (en) 1980-03-24

Family

ID=14663155

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11546378A Pending JPS5541468A (en) 1978-09-20 1978-09-20 Light branching filter device

Country Status (1)

Country Link
JP (1) JPS5541468A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726811A (en) * 1980-06-03 1982-02-13 Optical Coating Laboratory Inc Non-polarized thin film edge filter and optical fiber communication system used therewith
JPS5874078U (en) * 1981-11-11 1983-05-19 株式会社東芝 refrigerator
JPS60107006A (en) * 1983-11-14 1985-06-12 Fujitsu Ltd Optical filter device
US4878731A (en) * 1988-02-19 1989-11-07 Amp Incorporated Fiber optic connector including ferrule with filter isolator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5726811A (en) * 1980-06-03 1982-02-13 Optical Coating Laboratory Inc Non-polarized thin film edge filter and optical fiber communication system used therewith
JPS5874078U (en) * 1981-11-11 1983-05-19 株式会社東芝 refrigerator
JPS60107006A (en) * 1983-11-14 1985-06-12 Fujitsu Ltd Optical filter device
US4878731A (en) * 1988-02-19 1989-11-07 Amp Incorporated Fiber optic connector including ferrule with filter isolator

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