Pulsed light sources
First Claim
1. A source of pulses of coherent radiation at a wavelength of approximately 1 μ
- m, comprising;
a pump source for producing pump light;
a laser cavity comprising an Yb3+-doped gain medium arranged to receive the pump light, the laser cavity being modelocked to generate laser pulses at a defined repetition rate;
a pulse detector arranged to generate a pulse selection signal indicative of the repetition rate;
a pulse selector arranged to reduce the repetition rate of the laser pulses responsive to the pulse selection signal from the pulse detector by passing only selected ones of the laser pulses; and
at least one optical amplifier for amplifying the laser pulses of reduced repetition rate.
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Abstract
A source of pulses of coherent radiation at a wavelength of approximately 1 μm, comprises a pump source for producing pump light; a laser cavity comprising an Yb3+-doped gain medium arranged to receive the pump light, the laser cavity being modelocked to generate laser pulses at a defined repetition rate; a pulse detector arranged to generate a pulse selection signal indicative of the repetition rate; a pulse selector arranged to reduce the repetition rate of the laser pulses responsive to the pulse selection signal from the pulse detector by passing only selected ones of the laser pulses; and at least one optical amplifier for amplifying the laser pulses of reduced repetition rate. The at least one optical amplifier can be configured for chirped or parabolic pulse amplification.
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Citations
26 Claims
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1. A source of pulses of coherent radiation at a wavelength of approximately 1 μ
- m, comprising;
a pump source for producing pump light; a laser cavity comprising an Yb3+-doped gain medium arranged to receive the pump light, the laser cavity being modelocked to generate laser pulses at a defined repetition rate; a pulse detector arranged to generate a pulse selection signal indicative of the repetition rate; a pulse selector arranged to reduce the repetition rate of the laser pulses responsive to the pulse selection signal from the pulse detector by passing only selected ones of the laser pulses; and at least one optical amplifier for amplifying the laser pulses of reduced repetition rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
- m, comprising;
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22. A method of generating pulses of coherent radiation at a wavelength of approximately 1 μ
- m, comprising;
generating pulses having a defined repetition rate from a modelocked laser oscillator having an Yb3+-doped gain medium; generating a pulse selection signal indicative of the pulse repetition rate; activating a pulse selector with the pulse selection signal; reducing the repetition rate of the pulses by passing the pulses through the activated pulse selector; and amplifying the pulses by passing them through at least one optical amplifier. - View Dependent Claims (23)
- m, comprising;
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24. A source of pulses of coherent radiation at a wavelength of approximately 1 μ
- m, comprising;
means for producing pump light; means for receiving the pump light and generating laser pulses at a defined repetition rate; means for reducing the repetition rate of the generated laser pulses by selecting members of the laser pulses; means for stretching the pulses of reduced repetition rate; means for amplifying the laser pulses of reduced repetition rate; and means for compressing the laser pulses of reduced repetition rate. - View Dependent Claims (25, 26)
- m, comprising;
Specification