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US 8,508,844 B2Granted
Hybrid fiber-MOPA
AssigneeCoherent, Inc.
InventorsMichael Hertwig, Norman Hodgson, Luis A. Spinelli
Life of this patent
Estimating the term…
Abstract
A master oscillator power-amplifier stages includes multiple stages of fiber-amplification with a final power amplifier stage in the form of a multi-pass amplifier. With a thin-disk gain medium in one example the thin-disk amplifier includes a common optical arrangement for providing multiple incidences of radiation to be amplified and multiple incidences of a pump-radiation beam on the thin-disk gain medium.
Claims13
Optical apparatus, comprising:
- a master oscillator providing laser-radiation pulses;
- a plurality of fiber-amplifier stages arranged sequentially for pre-amplifying The laser-radiation pulses;
- and
- a multi-pass thin-disk amplifier including arranged for power amplifying the pre-amplified laser-radiation pulses from the fiber-amplifier stages, the thin-disk amplifier including a thin-disk gain-medium, and a source of optical pump radiation for energizing the thin-disk gain-medium, said thin-disk amplifier including a first optical arrangement for causing multiple incidences of the radiation pulses to be amplified on the thin-disk gain-medium.
1 more element
Optical apparatus, comprising:
- a master oscillator providing laser-radiation pulses;
- a plurality of fiber-amplifier stages arranged sequentially for pre-amplifying the laser-radiation pulses;
- and
- a multi-pass thin-disk amplifier including arranged for power amplifying the pre-amplified laser-radiation pulses from the fiber-amplifier stages, the thin-disk amplifier including a thin-disk gain-medium, a source of optical pump radiation for energizing the thin-disk gain-medium, and an optical arrangement for causing multiple incidences of the radiation pulses to be amplified on the thin-disk gain-medium, and multiple incidences of the optical pump radiation on the thin-disk gain-medium.
1 more element
Dependencies are inferred from the claim text.