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US 2014/0193153 A1Published application
Methods and Apparatus to Multiplex Light Signals
AssigneeSchlumberger Technology Corporation
InventorYuji Hosoda
Life of this patent
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Abstract
Methods and apparatus to multiplex light signals are disclosed herein. An example method includes conveying a first light signal via a first optical path and conveying a second light signal via a second optical path. The example method also includes frequency-division multiplexing and time-division multiplexing the first light signal and the second light signal to enable generation of a multiplexed light signal. The example method further includes directing the multiplexed light signal into an optical detector.
Claims20
A method, comprising:
- conveying a first light signal via a first optical path;
- conveying a second light signal via a second optical path;
- frequency-division multiplexing and time-division multiplexing the first light signal and the second light signal to enable generation of a multiplexed light signal;
- and
- directing the multiplexed light signal into an optical detector.
2 more elements
A method, comprising:
- directing a light flux into a first fiber bundle, the first fiber bundle to split into a first fiber sub-bundle and a second fiber sub-bundle;
- chopping a first light signal communicated via the first fiber sub-bundle at a first frequency;
- shuttering the first light signal during a first time slot;
- chopping a second light signal communicated via the second fiber sub-bundle at a second frequency different than the first frequency;
- shuttering the second light signal during a second time slot different than the first time slot;
- and
- combining the first light signal and the second light signal to form a multiplexed light signal.
4 more elements
An apparatus, comprising:
- a downhole tool;
- a first flowline and a second flowline disposed in the downhole tool;
- a first optical path to be in optical communication with a first fluid sample flowing through the first flowline;
- a second optical path to be in optical communication with a second fluid sample flowing through the second flowline, the first optical path and the second optical path to merge into a third optical path;
- an optical chopper disposed along at least one of the first optical path or the second optical path;
- an optical shutter disposed along at least one of the first optical path or the second optical path;
- and
- an optical detector in optical communication with the third optical path to receive a multiplexed light signal via the third optical path.
5 more elements
Dependencies are inferred from the claim text.