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Noise Eater

COHR Prometheus DS 0819 3.pdf

COHR Prometheus DS 0819 3.pdf

…-130
-120
-110
-100
-90
10k
Frequency (Hz)
100k 1M 10M
RIN (dB/Hz)
Free Running
Noise Eater Active
Detector Noise
Frequency (THz)
281.605
281.610
281.615
281.620
281.625
281.630
281.635
281.640

Photonics Spectra - August 2018

Photonics Spectra - August 2018

…Laser Trapping
Tech Feature
Figure 2. Mephisto amplitude noise, expressed as RIN (relative intensity noise). The noise eater circuit is
effective in eliminating most of the pump-diode current noise and also the noise peak (at 0.7 MHz) caused by
relaxation oscillations.