Thorlabs.com - Noise Eaters / Laser Amplitude Stabilizers
https://www.thorlabs.com/newgrouppage9_pf.cfm?guide=10&category_id=95&objectgroup_id=6107[7/7/2016 8:29:39 AM]
LCC3111L Max Power at Various Wavelengths
Switch
Status
Max Power
at 450 nm
Max Power
at 550 nm
Max Power
at 635 nm
1 mW
2 mW
1.5 mW
1 mW
3 mW
6 mW
4.5 mW
3 mW
10 mW
20 mW
15 mW
10 mW
30 mW
60 mW
45 mW
30 mW
LCC3111H Max Power at Various Wavelengths
Switch
Status
Max Power
at 450 nm
Max Power
at 550 nm
Max Power
at 635 nm
100 mW
200 mW
150 mW
100 mW
300 mW
600 mW
a
450 mW
300 mW
500 mW
1000 mW
a
750 mW
a
500 mW
The maximum power levels specified here are for the feedback
electronics, but the maximum input power at these settings is
limited by the damage threshold of the liquid crystal retarder,
which is 8 W/cm
2
. See the section "Max Powers at Various
Wavelengths," above, for details.
at a range of wavelengths. The tables below show a rough estimate of the power settings at various wavelengths for each model.
The noise eater operates by varying how much of the signal is attenuated in order to reach the target output power and attenuate the noise. Since the noise
eater can attenuate the signal but not amplify it, the clean output beam can only have a power as high as the minimum power level of the noisy signal. In
practice, to remove all noise without unnecessarily attenuating the signal power, the output power level should be set to slightly lower than the minimum power
of the noisy signal. See the operating manual on the
Documents
tab for more information.
Max Powers at Various Wavelengths
The tables below list the maximum input powers for each noise eater, specified for a variety of input wavelengths and switch settings. Please note that these
maximum power levels correspond to the feedback electronics of the noise eater, and in some cases, the actual maximum input power is instead limited by the
damage threshold of the noise eater. For the high power noise eaters (LCC3111H, LCC3112H, and LCC3113H), this damage threshold is 8 W/cm
2
, which
corresponds to a maximum input power of 1 W if the input power is distributed evenly across the Ø4 mm clear aperture. For the low power noise eater
(LCC3111L), the damage threshold is 0.8 W/cm
2
, which corresponds to a maximum input power of 100 mW if the input power is again distributed evenly
across the Ø4 mm clear aperture.
LCC3112H Max Power at Various Wavelengths
Switch
Status
Max Power
at 650 nm
Max Power
at 700 nm
Max Power
at 780 nm
Max Power
at 900 nm
Max Power
at 1000 nm
Max Power
at 1100 nm
Low
A
1.2 mW
1.1 mW
1 mW
0.9 mW
0.9 mW
3.3 mW
Low
B
3.5 mW
3.3 mW
3 mW
2.6 mW
2.7 mW
10.0 mW
Low
C
11.8 mW
11.1 mW
10 mW
8.8 mW
8.9 mW
33.3 mW
Low
D
35.5 mW
33.3 mW
30 mW
26.3 mW
26.8 mW
100 mW
High
A
120 mW
111 mW
100 mW
86.0 mW
89.3 mW
333 mW
High
B
355.5 mW
333 mW
300 mW
258.0 mW
268 mW
999 mW
a
High
C
600 mW
a
500 mW
500 mW
430.0 mW
446.6 mW
1650 mW
a
The maximum power levels specified here are for the feedback electronics, but the maximum input power at
these settings is limited by the damage threshold of the liquid crystal retarder, which is 8 W/cm
2
. See the section
"Max Powers at Various Wavelengths," above, for details.
LCC3113H Max Power at Various Wavelengths
Switch
Status
Max Power
at 1050 nm
Max Power
at 1150 nm
Max Power
at 1250 nm
Max Power
at 1350 nm
Max Power
at 1450 nm
Max Power
at 1550 nm
Max Power
at 1650 nm
Low
A
1.9 mW
1.6 mW
1.5 mW
1.2 mW
1 mW
1 mW
1.6 mW
Low
B
5.8 mW
4.8 mW
4.1 mW
3.5 mW
3.1 mW
3 mW
4.8 mW
Low
C
19.2 mW
16 mW
13.7 mW
11.7 mW
10.4 mW
10 mW
16 mW
Low
D
57.6 mW
48 mW
41.1 mW
35.1 mW
31.3 mW
30 mW
48 mW
High
A
190 mW
160 mW
137 mW
117 mW
104.7 mW
100 mW
160 mW
High
B
500 mW
480 mW
411 mW
351 mW
313.4 mW
300 mW
480 mW
High
C
835 mW
a
800 mW
a
685 mW
a
585 mW
a
520 mW
a
500 mW
800 mW
a
The maximum power levels specified here are for the feedback electronics, but the maximum input power at these settings is limited
by the damage threshold of the liquid crystal retarder, which is 8 W/cm
2
. See the section "Max Powers at Various Wavelengths,"