Systems and Methods for Cascaded Raman Lasing at High Power Levels
First Claim
1. A light amplification system, comprising:
- a fiber-based oscillator, amplifier, and cascaded Raman resonator that are coupled together in series, wherein an oscillator output is provided as an input into the amplifier, wherein an amplifier output is provided as a pumping input into the cascaded Raman resonator, and wherein the cascaded Raman resonator provides as an output radiation at a target wavelength, anda wavelength-dependent loss element, connected between the oscillator and the amplifier, for preventing backward propagation of light from the amplifier and cascaded Raman resonator into the oscillator, whereby the oscillator is operable within a first power level range, and the amplifier and cascaded Raman resonator are operable within a second power level range exceeding the first power level range.
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Abstract
In a light amplification system, a fiber-based oscillator, amplifier, and cascaded Raman resonator are coupled together in series. The oscillator output is provided as an input into the amplifier, the amplifier output is provided as a pumping input into the cascaded Raman resonator, and the cascaded Raman resonator provides as an output single-mode radiation at a target wavelength. A loss element is connected between the oscillator and amplifier, whereby the oscillator is optically isolated from the amplifier and cascaded Raman resonator. A filter is coupled between the isolator and the amplifier for filtering out backward-propagating Stokes wavelengths generated in the cascaded Raman resonator. The oscillator is operable within a first power level range, and the amplifier and cascaded Raman resonator are operable within a second power level range exceeding the first power level range.
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Citations
21 Claims
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1. A light amplification system, comprising:
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a fiber-based oscillator, amplifier, and cascaded Raman resonator that are coupled together in series, wherein an oscillator output is provided as an input into the amplifier, wherein an amplifier output is provided as a pumping input into the cascaded Raman resonator, and wherein the cascaded Raman resonator provides as an output radiation at a target wavelength, and a wavelength-dependent loss element, connected between the oscillator and the amplifier, for preventing backward propagation of light from the amplifier and cascaded Raman resonator into the oscillator, whereby the oscillator is operable within a first power level range, and the amplifier and cascaded Raman resonator are operable within a second power level range exceeding the first power level range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A light amplification method, comprising:
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coupling together in series a fiber-based oscillator, amplifier, and cascaded Raman resonator, wherein an oscillator output is provided as an input into the amplifier, wherein an amplifier output is provided as an pumping input into the cascaded Raman resonator, and wherein the cascaded Raman resonator provides as an output single-mode radiation at a target wavelength, isolating the oscillator from the amplifier and cascaded Raman resonator, whereby the oscillator is operable within a first power level range, and the amplifier and cascaded Raman resonator are operable within a second power level range exceeding the first power level range. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification