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Noise Eater

WP1 MephistoNPRO Final.pdf

WP1 MephistoNPRO Final.pdf


White Paper
Figure 6 Mephisto amplitude noise, expressed as RIN (Relative
Intensity Noise) between 0 and 2.5 MHz. The Noise Eater circuit
is effective in eliminating most of the pump diode current noise as
well as the noise peak due to relaxation oscillations.
Power…

mephisto MOPA whitepaper v05.pdf

mephisto MOPA whitepaper v05.pdf

…also provide low amplitude noise, which is
further improved by Noise Eater (NE) technology. As in many diode pumped solid state or fiber
lasers, pump diodes and the relaxation oscillations are the prominent intensity noise
contributors. The Noise Eater effectively eliminates these…

Mephisto Gravitational Waves 2016.pdf

Mephisto Gravitational Waves 2016.pdf

…764-4983 5
White Paper
Figure 2. Relative Power Noise measured in the range 1 Hz-100 kHz
on eight different Mephisto-2000NE lasers. The green line represents
the average RPN of the eight lasers with the Noise Eater switched off.
Reproduced with permission from ref 2.

COHR MephistoMOPA DS 0417 2.pdf

COHR MephistoMOPA DS 0417 2.pdf

…-140
-130
-120
-110
-100
10k
Frequency (MHz)
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

COHR MephistoMOPA DS 0819 3.pdf

COHR MephistoMOPA DS 0819 3.pdf

…-140
-130
-120
-110
-100
10k
Frequency (Hz)
100k 1M 10M
RIN (dB/Hz)
Free Running
Noise Eater Active
Detector Noise
1
10
102
103
104
105
106
107
1
Frequency (Hz)
10 100 1k 10k
Linear…

COHR Mephisto DS 0819 4.pdf

COHR Mephisto DS 0819 4.pdf

…(NPRO) technology for ultra-stable and narrow linewidth · Extremely long coherence length · Noise Eater - active intensity noise reduction technology · User-installed, turn-key operation · Low noise control electronics APPLICATIONS · Atom Trapping and Cooling · Gravitational Wave Studies ·…

COHR Mephisto DS 0417 2.pdf

COHR Mephisto DS 0417 2.pdf


-130
-120
-110
-100
10k
Frequency (MHz)
100k 1M 10M
RIN (dB/Hz)
Free Running
Noise Eater Active
Detector Noise
1
10
102
103
104
105
106
107
1
Frequency (Hz)
10 100 1k 10k
Linear…

COHR Prometheus DS 1017 1.pdf

COHR Prometheus DS 1017 1.pdf

…-130
-120
-110
-100
-90
10k
Frequency (MHz)
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

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.