Apparatus for coupling radiation into and out of an optical fiber
AssigneeNGPod Global Limited
InventorAndrew Loach
Life of this patent
Estimating the term…
Abstract
An apparatus for coupling radiation into and out of an optical fiber includes an optical element, a radiation system and a sensor system. The optical element is for coupling radiation into and out of the optical fiber. The radiation system produces input radiation, so that the input radiation is at least partially received by the optical element. The sensor system is for receiving output radiation from the optical element and operates to generate a signal indicative of at least one characteristic of the output radiation. The optical element, the radiation system and the sensor system are generally co-axial and the radiation system and the sensor system are both disposed on the same side of the optical element.
Claims13
An apparatus for coupling radiation into and out of an optical fiber, the apparatus comprising:
- an optical element for coupling radiation into and out of the optical fiber;
- a radiation system operable to produce input radiation, the radiation system so that the input radiation is at least partially received by the optical element;
- and
- a sensor system for receiving output radiation from the optical element and operable to generate a signal indicative of at least one characteristic of the output radiation;
- wherein the optical element, the radiation system and the sensor system are substantially co-axial and the radiation system and the sensor system are both disposed on the same side of the optical element.
A measurement device comprising:
- an apparatus for coupling radiation into and out of an optical fiber, comprising:
- an optical element for coupling radiation into and out of the optical fiber;
- a radiation system operable to produce input radiation, the radiation system so that the input radiation is at least partially received by the optical element;
- and
- a sensor system for receiving output radiation from the optical element and operable to generate a signal indicative of at least one characteristic of the output radiation,
- wherein the optical element, the radiation system and the sensor system are substantially co-axial and the radiation system and the sensor system are both disposed on the same side of the optical element, a power supply;
- and
- a control unit, the control unit being operable to:
- control emission of radiation from the radiation system;
- and
- receive a signal from the sensor system which is indicative of at least one characteristic of the output radiation received to thereby determine said at least one characteristic of the output radiation from the signal received from the sensor system.
A system for determining a property of a remote location, the system comprising:
- a measurement device comprising:
- an apparatus for coupling radiation into and out of an optical fiber, comprising:
- an optical element for coupling radiation into and out of the optical fiber;
- a radiation system operable to produce input radiation, the radiation system so that the input radiation is at least partially received by the optical element;
- and
- a sensor system for receiving output radiation from the optical element and operable to generate a signal indicative of at least one characteristic of the output radiation,
- wherein the optical element, the radiation system and the sensor system are substantially co-axial and the radiation system and the sensor system are both disposed on the same side of the optical element,
- a power supply;
- and
- a control unit, the control unit being operable to:
- control emission of radiation from the radiation system;
- and
- receive a signal from the sensor system which is indicative of at least one characteristic of the output radiation received to thereby determine said at least one characteristic of the output radiation from the signal received from the sensor system;
- and
- an optical fiber having a sensing distal end comprising a sensing material operable to change to a color that is indicative of a chemical content of the environment to which it is exposed.
Dependencies are inferred from the claim text.