GB1444975A - Optical waveguide coupling elements - Google Patents
Optical waveguide coupling elementsInfo
- Publication number
- GB1444975A GB1444975A GB3634973A GB3634973A GB1444975A GB 1444975 A GB1444975 A GB 1444975A GB 3634973 A GB3634973 A GB 3634973A GB 3634973 A GB3634973 A GB 3634973A GB 1444975 A GB1444975 A GB 1444975A
- Authority
- GB
- United Kingdom
- Prior art keywords
- light
- optical waveguide
- waveguide coupling
- guides
- coupling elements
- 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.)
- Expired
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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/27—Optical coupling means with polarisation selective and adjusting means
- G02B6/2746—Optical coupling means with polarisation selective and adjusting means comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
-
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Integrated Circuits (AREA)
Abstract
1444975 Light guides SIEMENS AG 31 July 1973 [1 Aug 1972] 36349/73 Heading G2J An optical waveguide coupling element 1 for guides having a circular or polygonal cross-section has a cross-sectional area which increases in the direction of light propagation, e.g. from a laser transmitter 2, for a predetermined distance, and then decreases less rapidly to an exit surface, e.g. at a modulator 4. The element 1 cuts down the amount of light transmitted after two or more reflections at the surfaces 5, 3, see Fig. 3 (not shown) and depends on the fact that light is attenuated slowly for a divergent apex angle and for small convergent apex angles, E2, but quickly for larger convergent angles El.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19722237853 DE2237853C3 (en) | 1972-08-01 | Optical asymmetrical wave-guiding connection element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1444975A true GB1444975A (en) | 1976-08-04 |
Family
ID=5852377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3634973A Expired GB1444975A (en) | 1972-08-01 | 1973-07-31 | Optical waveguide coupling elements |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE803103A (en) |
| FR (1) | FR2194976B1 (en) |
| GB (1) | GB1444975A (en) |
| IT (1) | IT992678B (en) |
| LU (1) | LU68119A1 (en) |
| NL (1) | NL7310534A (en) |
-
1973
- 1973-07-25 IT IT2703673A patent/IT992678B/en active
- 1973-07-27 FR FR7327658A patent/FR2194976B1/fr not_active Expired
- 1973-07-30 NL NL7310534A patent/NL7310534A/xx unknown
- 1973-07-30 LU LU68119D patent/LU68119A1/xx unknown
- 1973-07-31 GB GB3634973A patent/GB1444975A/en not_active Expired
- 1973-08-01 BE BE134137A patent/BE803103A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2194976B1 (en) | 1977-02-25 |
| FR2194976A1 (en) | 1974-03-01 |
| BE803103A (en) | 1973-12-03 |
| DE2237853B2 (en) | 1976-07-08 |
| DE2237853A1 (en) | 1974-02-14 |
| IT992678B (en) | 1975-09-30 |
| LU68119A1 (en) | 1973-10-23 |
| NL7310534A (en) | 1974-02-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |