JPS5597752A - Photo transmitter - Google Patents
Photo transmitterInfo
- Publication number
- JPS5597752A JPS5597752A JP499579A JP499579A JPS5597752A JP S5597752 A JPS5597752 A JP S5597752A JP 499579 A JP499579 A JP 499579A JP 499579 A JP499579 A JP 499579A JP S5597752 A JPS5597752 A JP S5597752A
- Authority
- JP
- Japan
- Prior art keywords
- wavelength band
- fiber
- filter
- transmitting
- wavelength
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Communication System (AREA)
Abstract
PURPOSE:To enable every terminal equipment to possess transmitting-receiving terminals with a little light loss by transmitting photo signals by making a filter of a dielectric multi-layer film allow a light signal of a 1st wavelength band to pass through while reflecting that of a 2nd wavelength band. CONSTITUTION:In filter 28, a dielectric multi-layer film fitted to optical fiber axes 20...23 at an angle of 45 deg. gives effect to wavelength separation and a photo signal of a F1-wavelength band is allowed to pass through the film while that of a F2-wavelength band is reflected. Now, light of wavelength bands of F1 and F2, when entering from fiber 20, is made by lend 24 into a parallel beam and filter 28 transmits the photo signal of the F1-wavelength band to fiber 22 by passing, and that of the F2-wavelength band to fiber 23 by reflecting. Simultaneously, the photo signal of the F2- wavelength band from fiber 21 is reflected and sent to fiber 22. Consequently, every terminal equipment can have transmitting-receiving terminals with a little light loss.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54004995A JPS6030455B2 (en) | 1979-01-20 | 1979-01-20 | optical transmission equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54004995A JPS6030455B2 (en) | 1979-01-20 | 1979-01-20 | optical transmission equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5597752A true JPS5597752A (en) | 1980-07-25 |
JPS6030455B2 JPS6030455B2 (en) | 1985-07-16 |
Family
ID=11599171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54004995A Expired JPS6030455B2 (en) | 1979-01-20 | 1979-01-20 | optical transmission equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6030455B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2512620A2 (en) * | 1981-02-13 | 1983-03-11 | France Etat | CONCENTRATOR-DISTRIBUTOR OPTICAL MATRIX |
US5576872A (en) * | 1993-03-09 | 1996-11-19 | Hitachi, Ltd. | Optical distribution device, optical distribution circuit, and synthesizing method of distribution circuits |
US5883730A (en) * | 1995-12-29 | 1999-03-16 | Lucent Technologies Inc. | Optical transceiver for multi-directional and multi-wavelength applications |
-
1979
- 1979-01-20 JP JP54004995A patent/JPS6030455B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2512620A2 (en) * | 1981-02-13 | 1983-03-11 | France Etat | CONCENTRATOR-DISTRIBUTOR OPTICAL MATRIX |
US5576872A (en) * | 1993-03-09 | 1996-11-19 | Hitachi, Ltd. | Optical distribution device, optical distribution circuit, and synthesizing method of distribution circuits |
US5790290A (en) * | 1993-03-09 | 1998-08-04 | Hitachi, Ltd. | Optical distribution system having time switch |
US5883730A (en) * | 1995-12-29 | 1999-03-16 | Lucent Technologies Inc. | Optical transceiver for multi-directional and multi-wavelength applications |
Also Published As
Publication number | Publication date |
---|---|
JPS6030455B2 (en) | 1985-07-16 |
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