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US 2003/0165005 A1Published application
Phase conjugating structure for mode matching in super luminescent diode cavities
AssigneeTrumpf Photonics Inc., a Delaware corporation
InventorHerschel C. Burstyn
Life of this patent
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Abstract
A mode matching gain element for an optical system is described, that supports a single mode of the optical signal, and that matches the incoming wavefront to a required outgoing wavefront. The incoming wavefront is passed through a phase conjugating structure, and the mode of the gain element is matched to the mode of the input and output optic fibers. The phase conjugating structure includes lenses or mirrors which time-reverse the incoming signal.
Claims26
A super luminescent diode cavity comprising:
- an input adapted to receive a signal from a single mode input optical fiber;
- an output adapted to provide an amplified signal to a single mode output optical fiber;
- a gain region adapted to amplify the signal received from the input optical fiber and adapted to provide the amplified signal to the output wherein the gain region is adapted to support a single optical mode;
- and
- a phase-conjugating, elongated, mirrored cavity adapted to time reverse the signal received from the input optical fiber, wherein the mirrored cavity is located between the input and the output.
2 more elements
A super luminescent diode cavity comprising:
- a first connection for connecting to an input optical fiber wherein the input optical fiber is adapted to support a single optical mode;
- a second connection for connecting to an output optical fiber wherein the output optical fiber is adapted to support a single optical mode;
- a first gain region adapted to amplify a signal received at the first connection;
- a second gain region in communication with the second connection and adapted to amplify the signal;
- and
- a phase-conjugating, elongated, mirrored cavity located between the first and second gain regions and adapted to time reverse the signal between the first connection and the second connection and to match a wave front of the signal received at the first connection to a wave front at the second connection.
3 more elements
Dependencies are inferred from the claim text.