JPS55110205A - Optical filter - Google Patents
Optical filterInfo
- Publication number
- JPS55110205A JPS55110205A JP1805979A JP1805979A JPS55110205A JP S55110205 A JPS55110205 A JP S55110205A JP 1805979 A JP1805979 A JP 1805979A JP 1805979 A JP1805979 A JP 1805979A JP S55110205 A JPS55110205 A JP S55110205A
- Authority
- JP
- Japan
- Prior art keywords
- photosensitive material
- optical filter
- same
- optical fiber
- formula
- 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
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
- G02B6/02—Optical fibres with cladding with or without a coating
- G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
- G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
- G02B6/02123—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating
- G02B6/02133—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating using beam interference
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Filters (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
PURPOSE:To obtain the simple and highly reliable optical filter by forming the optical filter into the same shape as that of an optical fiber and so constituting the same that the matching of the coupling part of both may be taken. CONSTITUTION:Transparent dielectric 6 having a refractive index slightly higher than that of bar-form photosensitive material 5 such as photo polymer or amorphous semiconductor of the same core dimater and same diameter as an optical fiber is coated on the outside circumference of said photosensitive material 5. Next, when two broad beams B1, B2 which show sensitivity to the photosensitive material 5 are simultaneously radiated with an angle 2theta0 with each other through the transparent dielectric 6, the interference fringes of period LAMBDA shown in formula 1 i.e., grating images 7 are continuously exposed in the axial direction to the photosensitive material 5 through interference of the beams B1, B2. When the optical fibers 9, 10 of the same diameter as that of the photosensitive material 5 are directly bonded to the both ends of this optical fiber 8, only the light waves of the wavelength lambda shown in formula 2 are selectively reflected from the incident side. In this way, the simple and highly reliable optical filter is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1805979A JPS55110205A (en) | 1979-02-19 | 1979-02-19 | Optical filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1805979A JPS55110205A (en) | 1979-02-19 | 1979-02-19 | Optical filter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55110205A true JPS55110205A (en) | 1980-08-25 |
Family
ID=11961112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1805979A Pending JPS55110205A (en) | 1979-02-19 | 1979-02-19 | Optical filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55110205A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0651267A1 (en) * | 1993-11-01 | 1995-05-03 | Sumitomo Electric Industries, Ltd. | Optical branching device |
EP0651268A1 (en) * | 1993-11-01 | 1995-05-03 | Sumitomo Electric Industries, Ltd. | Optical branching device |
-
1979
- 1979-02-19 JP JP1805979A patent/JPS55110205A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0651267A1 (en) * | 1993-11-01 | 1995-05-03 | Sumitomo Electric Industries, Ltd. | Optical branching device |
EP0651268A1 (en) * | 1993-11-01 | 1995-05-03 | Sumitomo Electric Industries, Ltd. | Optical branching device |
US5586209A (en) * | 1993-11-01 | 1996-12-17 | Sumitomo Electric Industries, Ltd. | Optical branching device |
US5627928A (en) * | 1993-11-01 | 1997-05-06 | Sumitomo Electric Industries, Ltd. | Optical branching device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5016967A (en) | Multi-core optical waveguide Bragg grating light redirecting arrangement | |
JPS5669602A (en) | Light guide device | |
JPS55110207A (en) | Optical fiber device | |
JPS55110205A (en) | Optical filter | |
JPS57142608A (en) | Optical coupler | |
JPS5529824A (en) | Photo branching filter | |
JPS57158604A (en) | Light beam converting adaptor | |
JPS5528029A (en) | Reflection type light distributor | |
JPS5587925A (en) | Astigmatism correction type spectroscope | |
JPS5488136A (en) | Optical branching filter for optical fibers | |
JPS57177104A (en) | Optical demultiplexer | |
JPS5727214A (en) | Graded lens and optical transmission line using said lens | |
JPS5521011A (en) | Thin fllm spectral module | |
JPS55135805A (en) | Optical fiber bundle for bar-form image transmission | |
JPS5557804A (en) | Optical branching and coupling device | |
JPS5518618A (en) | Photo distributor for optical fiber | |
JPS54118184A (en) | Luminous element with optical fiber | |
JPS57198423A (en) | Planar type optical demultiplexer and multiplexer | |
JPS5670505A (en) | Light branching filter circuit | |
JPS6446707A (en) | Optical path switching device | |
JPS5748710A (en) | Optical wave branching filter | |
JPS54153652A (en) | Optical branching filter | |
JPS55126833A (en) | Hologram type thin-film spectroscope | |
JPS54127340A (en) | Light attenuator | |
JPS5342845A (en) | Photo coupling device |