Fiber laser with intracavity frequency shift and bandpass filter
AssigneeAmpliconyx Oy
InventorsRegina Gumenyuk, Xinyang Liu
Life of this patent
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Abstract
Various example embodiments relate to the field of fiber laser technology. A fiber laser may comprise an active optical fiber configured to amplify an optical signal and a frequency shifter, which may be optically coupled to the active optical fiber. The frequency shifter may be configured to cause a frequency shift to the optical signal in a first direction. The fiber laser may further comprise a bandpass filter, which may be optically coupled to the frequency shifter. The bandpass filter and the active optical fiber may be configured to induce a reverse frequency shift to the optical signal in a second direction opposite to the first direction.
Claims22
A fiber laser, comprising:
- an active optical fiber configured to amplify an optical signal;
- a frequency shifter optically coupled to the active optical fiber, wherein the frequency shifter is configured to cause a frequency shift to the optical signal in a first direction;
- and
- a bandpass filter optically coupled to the frequency shifter, wherein the bandpass filter and the active optical fiber are configured to induce a reverse frequency shift to the optical signal in a second direction opposite to the first direction.
A method comprising:
- amplifying an optical signal by an active optical fiber;
- frequency shifting the optical signal in a first direction;
- and
- inducing, by a bandpass filter and the active optical fiber, a reverse frequency shift to the optical signal in a second direction opposite to the first direction.
Dependencies are inferred from the claim text.