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Self-pulsation is a transient phenomenon in continuous-wave lasers. Self-pulsation takes place at the beginning of . As the pump is switched on, the gain in the active medium rises and exceeds the steady-state value. The number of photons in the cavity increases, depleting the gain below the steady-state value, and so on. The laser pulsates; the output power at the peaks can be orders of magnitude larger than that between pulses. After several strong peaks, the amplitude of pulsation reduces, and the system behaves as a linear oscillator with damping. Then the pulsation decays; this is the beginning of the continuous-wave operation.

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  • Spiking (Effekt) (de)
  • Self-pulsation (en)
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  • Als Spiking bezeichnet man einen meist unerwünschten Effekt, der während der Einschwingphase eines Lasers auftritt. Der Laser sendet dabei eine chaotische Folge starker, kurzer Lichtpulse, so genannte Spikes, aus. Dabei baut der Laser die vorher aufgebaute Besetzungsinversion sogar soweit ab, dass sie wieder unter die Laserschwelle sinken kann. Dadurch schwankt die Intensität der Laserstrahlung im Einschwingvorgang stark und unregelmäßig. Da diese Spikes allerdings eine sehr große Leistung besitzen, können sie z. B. beim gepulsten Laser genutzt werden. (de)
  • Self-pulsation is a transient phenomenon in continuous-wave lasers. Self-pulsation takes place at the beginning of . As the pump is switched on, the gain in the active medium rises and exceeds the steady-state value. The number of photons in the cavity increases, depleting the gain below the steady-state value, and so on. The laser pulsates; the output power at the peaks can be orders of magnitude larger than that between pulses. After several strong peaks, the amplitude of pulsation reduces, and the system behaves as a linear oscillator with damping. Then the pulsation decays; this is the beginning of the continuous-wave operation. (en)
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  • September 2012 (en)
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  • formatting, grammar, coherence (en)
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  • Als Spiking bezeichnet man einen meist unerwünschten Effekt, der während der Einschwingphase eines Lasers auftritt. Der Laser sendet dabei eine chaotische Folge starker, kurzer Lichtpulse, so genannte Spikes, aus. Dabei baut der Laser die vorher aufgebaute Besetzungsinversion sogar soweit ab, dass sie wieder unter die Laserschwelle sinken kann. Dadurch schwankt die Intensität der Laserstrahlung im Einschwingvorgang stark und unregelmäßig. Da diese Spikes allerdings eine sehr große Leistung besitzen, können sie z. B. beim gepulsten Laser genutzt werden. (de)
  • Self-pulsation is a transient phenomenon in continuous-wave lasers. Self-pulsation takes place at the beginning of . As the pump is switched on, the gain in the active medium rises and exceeds the steady-state value. The number of photons in the cavity increases, depleting the gain below the steady-state value, and so on. The laser pulsates; the output power at the peaks can be orders of magnitude larger than that between pulses. After several strong peaks, the amplitude of pulsation reduces, and the system behaves as a linear oscillator with damping. Then the pulsation decays; this is the beginning of the continuous-wave operation. (en)
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