ES8308064A1 - Optical energy sensor and demodulation system - Google Patents
Optical energy sensor and demodulation systemInfo
- Publication number
- ES8308064A1 ES8308064A1 ES512709A ES512709A ES8308064A1 ES 8308064 A1 ES8308064 A1 ES 8308064A1 ES 512709 A ES512709 A ES 512709A ES 512709 A ES512709 A ES 512709A ES 8308064 A1 ES8308064 A1 ES 8308064A1
- Authority
- ES
- Spain
- Prior art keywords
- single mode
- etched
- mode fibre
- fibre
- glass clad
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The signal energy to be sensed or detected is caused to stretch an etched single mode fibre. An etched single mode fibre is a single mode glass clad fibre whose cladding thickness has been reduced a specific amount so as to lower its strength. The invention provides that, when necessary to maintain the etched single mode fibre's light guiding properties, the portion of the glass clad which was removed is replaced with a plastic material whose optical index is lower than that of the single mode fibre's core material and whose elastic modulus is lower than that of the glass clad which it replaces. - Such an etched single mode fibre is more sensitive to stretching or compression because it is weaker. For a given amount of signal energy, a single mode fibre will stretch a greater amount after it has been etched. The sensor is used in a hydrophone array. (10,11/18) GBAB- GB2096340 B The signal energy to be sensed or detected is caused to stretch an etched single mode fibre. An etched single mode fibre is a single mode glass clad fibre whose cladding thickness has been reduced a specific amount so as to lower its strength. The invention provides that, when necessary to maintain the etched single mode fibre's light guiding properties, the portion of the glass clad which was removed is replaced with a plastic material whose optical index is lower than that of the single mode fibre's core material and whose elastic modulus is lower than that of the glass clad which it replaces. - Such an etched single mode fibre is more sensitive to stretching or compression because it is weaker. For a given amount of signal energy, a single mode fibre will stretch a greater amount after it has been etched. The sensor is used in a hydrophone array. (21pp Dwg.No.10,11/18)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES512709A ES512709A0 (en) | 1982-05-31 | 1982-05-31 | PROCEDURE FOR THE PRODUCTION OF A FIBER OPTIC ENERGY SENSOR. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES512709A ES512709A0 (en) | 1982-05-31 | 1982-05-31 | PROCEDURE FOR THE PRODUCTION OF A FIBER OPTIC ENERGY SENSOR. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ES8308064A1 true ES8308064A1 (en) | 1983-08-16 |
| ES512709A0 ES512709A0 (en) | 1983-08-16 |
Family
ID=8484228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES512709A Granted ES512709A0 (en) | 1982-05-31 | 1982-05-31 | PROCEDURE FOR THE PRODUCTION OF A FIBER OPTIC ENERGY SENSOR. |
Country Status (1)
| Country | Link |
|---|---|
| ES (1) | ES512709A0 (en) |
-
1982
- 1982-05-31 ES ES512709A patent/ES512709A0/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| ES512709A0 (en) | 1983-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ATE169113T1 (en) | OPTICAL FIBER FOR SPECTROSCOPIC DETECTION | |
| DE3469220D1 (en) | Method for measuring force by help of strain induced double refraction in a monomode optical fiber and measuring device for carrying out the method | |
| CA2130429A1 (en) | Optical Sensor Displacement Monitor | |
| DE69106367D1 (en) | PRESSURE TRANSFORMER WITH OPTICAL FIBER. | |
| GB2261507A (en) | Distributed fiber optic sensor using clad material light backscattering | |
| GB9626099D0 (en) | Distributed strain and temperature measuring system | |
| DE69418790D1 (en) | OPTICAL ARRANGEMENT FOR INFRARED THERMOMETERS | |
| FR2597971B1 (en) | FIBER OPTIC SENSOR | |
| IT1149025B (en) | OPTICAL FIBER ROTATION SENSOR, USING NON POLARIZED LIGHT, AND APPLICATION METHOD | |
| GB2307551A (en) | Optical sensors and method for producing fibre optic modalmetric sensors | |
| EP0259837A3 (en) | Method of measuring the refractive index profile of optical fibers | |
| EP0226020A3 (en) | Plastic optical fibers and transparent resin used therefor | |
| ES2003778A6 (en) | Device designed to interrupt or to attenuate a light signal which is propagating in an optical guide | |
| EP0212877A3 (en) | Optical coupler for an optical fibre | |
| ATE111233T1 (en) | OPTICAL FIBER. | |
| ES8308064A1 (en) | Optical energy sensor and demodulation system | |
| SE9502257D0 (en) | High voltage measuring device | |
| IT1137002B (en) | Optical energy sensor and demodulation system | |
| EP0407010A3 (en) | Detection of splices in an optical fiber | |
| EP0685722A3 (en) | Method of measuring the nonlinear refractive index in a single-mode optical fibre. | |
| JPS576333A (en) | Detector for disconnection of optical fiber | |
| JPS57196109A (en) | Optical detector for physical amount | |
| NO902903D0 (en) | CLUTCH HOUSING FOR CONNECTING OPTICAL FIBERS AND PROCEDURES IN ITS ASSEMBLY AND FOR CONNECTING TWO FIBERS. | |
| GB8825400D0 (en) | Polymer claddings for optical fibre waveguides | |
| JPS56145326A (en) | Detecting method for stress |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 20020506 |