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US 11,531,157 B2Granted
Fiber connectors for mode division multiplexing using multimode optical fibers
AssigneeCommScope Technologies LLC
InventorsEarl R. Parsons, Paul Francis Kolesar, Michael Aaron Kadar-Kallen
Life of this patent
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Abstract
A first multimode optical fiber carries a mode division multiplexed (MDM) optical signal. The MDM optical signal is transmitted into a second multimode fiber from the first multimode optical fiber. The first and second multimode fibers are coupled via a fiber connector. The lateral offset between the two fibers at the connector is less than 2 μm.
Claims28
An optical communications system, comprising:
- a first multimode optical fiber, having a gradient index core, transmitting a mode division multiplexed (MDM) optical signal, the first multimode optical fiber having a first end;
- a second multimode optical fiber, having a gradient index core, a first end of the second multimode optical fiber coupled to receive the MDM optical signal from the first end of the first multimode optical fiber;
- a multimode fiber connector having a first part holding the first end of the first multimode optical fiber and a second part holding the first end of the second multimode optical fiber, the first and second parts of the multimode fiber connector being in fixed spatial relationship to each other;
- wherein the lateral offset between the first end of the first multimode optical fiber and the first end of the second multimode optical fiber is less than 2 μm.
1 more element
An optical communications system, comprising
- a transmitter portion comprising at least a first optical transmitter capable of generating a first optical signal and a second optical transmitter capable of generating a second optical signal;
- a first multimode optical fiber having a gradient index core, and having a first end and a second end;
- a mode division multiplexer coupled to receive the first optical signal from the first optical transmitter and the second optical signal from the second optical transmitter and coupled to direct a mode division multiplexed (MDM) optical signal into the first end of the first multimode optical fiber, the MDM optical signal comprising the first and second optical signals;
- a second multimode optical fiber having a gradient index core, and having a first end and a second end;
- a multimode fiber connector attached to the second end of the first multimode optical fiber and the first end of the second multimode optical fiber, the multimode fiber connector aligning the first and second multimode optical fibers so as to transmit the MDM optical signal from the first multimode optical fiber to the second multimode optical fiber;
- a mode division demultiplexer coupled to receive the MDM optical signal from the second end of the second multimode optical fiber;
- and
- a receiver portion comprising at least a first optical receiver coupled to receive the first optical signal from the mode division demultiplexer and a second optical receiver coupled to receive the second optical signal from the mode division demultiplexer.
5 more elements
Dependencies are inferred from the claim text.