11QE12 laser energy detectors can measure energy up to 3.9 J (with attenuator), max repetition frequency - 6000 Hz. Low noise level - just 10 µJ. Effective aperture - 12 mm square. These detectors are compact and convenient to use. They are suitable for many OEM, manufacturing and laboratory applications. Specifications
| Detector |
11QE12LP-S-MB |
11QE12LP-H-MB |
11QE12SP-S-MT |
11QE12SP-H-MT |
| MAX MEASURABLE ENERGY (WITH ATTENUATOR) |
3.9 J |
3.9 J |
1.6 J |
1.6 J |
| MAX REPETITION FREQUENCY |
300 Hz |
300 Hz |
6000 Hz |
6000 Hz |
| EFFECTIVE APERTURE |
12 x 12 mm |
12 x 12 mm |
12 x 12 mm |
12 x 12 mm |
| MEASUREMENT CAPABILITY |
| Spectral Range *a |
0.19 – 20 µm |
0.19 – 20 µm |
0.19 – 20 µm b |
0.19 – 20 µm b |
| Maximum Measurable Energy c |
Alone |
Attenuator |
Alone |
Attenuator |
Alone |
Attenuator |
Alone |
Attenuator |
| 1064 nm, 7 ns, 10 Hz d |
0.85 J |
3.9 J |
0.85 J |
3.9 J |
0.70 J |
1.60 J |
0.70 J |
1.60 J |
| 266 nm, 7 ns, 10 Hz |
0.70 J |
0.81 J |
0.70 J |
0.81 J |
0.10 J |
0.25 J |
0.10 J |
0.25 J |
| Noise Equivalent Energy e |
0.7 µJ |
0.7 µJ |
0.8 µJ |
0.8 µJ |
| Sensitivity f,g |
60 V/J |
60 V/J |
100 V/J |
100 V/J |
| Max Repetition Frequency |
300 Hz |
300 Hz |
6000 Hz |
6000 Hz |
| Maximum Pulse Width (typical) |
400 µs ** |
400 µs ** |
10 µs |
10 µs |
| Rise Time (typical 0-100 %) |
550 µs |
550 µs |
20 µs |
20 µs |
| Calibration Uncertainty h |
±3 % |
±3 % |
±3 % |
±3 % |
| Repeatability |
<0.5 % |
<0.5 % |
<0.5 % |
<0.5 % |
| DAMAGE THRESHOLDS |
| Maximum Average Power |
Alone |
Attenuator |
Alone |
Attenuator |
Alone |
Attenuator |
Alone |
Attenuator |
| All Wavelengths |
3 W |
7.5 W |
5 W |
12.5 W |
3 W |
7.5 W |
5 W |
12.5 W |
| Maximum Energy Density |
Alone |
Attenuator |
Alone |
Attenuator |
Alone |
Attenuator |
Alone |
Attenuator |
| 1064 nm, 7 ns, single shot |
0.6 J/cm2 |
16 J/cm2 |
0.6 J/cm2 |
16 J/cm2 |
0.50 J/cm2 |
4 J/cm2 |
0.50 J/cm2 |
4 J/cm2 |
| 1064 nm, 7 ns, 10 Hz |
0.6 J/cm2 |
8 J/cm2 |
0.6 J/cm2 |
8 J/cm2 |
0.50 J/cm2 |
2 J/cm2 |
0.50 J/cm2 |
2 J/cm2 |
| 532 nm, 7 ns, 10 Hz |
0.6 J/cm2 |
6 J/cm2 |
0.6 J/cm2 |
6 J/cm2 |
0.07 J/cm2 |
0.35 J/cm2 |
0.07 J/cm2 |
0.35 J/cm2 |
| 266 nm, 7 ns, 10 Hz |
0.5 J/cm2 |
1 J/cm2 |
0.5 J/cm2 |
1 J/cm2 |
0.07 J/cm2 |
0.30 J/cm2 |
0.07 J/cm2 |
0.30 J/cm2 |
| Maximum Average Power Density |
10 W/cm2 |
600 W/cm2 |
10 W/cm2 i |
600 W/cm2 |
10 W/cm2 |
600 W/cm2 |
10 W/cm2 i |
600 W/cm2 |
| PHYSICAL CHARACTERISTICS |
| Effective Aperture (with Attenuator) |
12 X 12 mm (9 X 9 mm) |
| Absorber |
Multi-Band |
Multi-Band |
Metallic |
Metallic |
| Dimensions |
36H x 36W x 14D mm |
36H x 36W x 33D mm |
36H x 36W x 14D mm |
36H x 36W x 33D mm |
| Weight |
87 g |
117 g |
87 g |
117 g | Specifications are subject to change without notice
* For the calibrated spectral range, see the user manual.
** Also available on special order: The Extra Long Pulse Series 11QE12ELP-MB for pulse widths up to 2 msec, custom-tuned for rep. rate, sensitivity, and pulse width.
a. 0.308 - 2.1 µm with QED Attenuator.
b. Detectors with the MT coating can be used within the range 0.19 to 20 µm, however the absorption in the IR wavelengths decreases significantly. This, in turn, reduces the sensitivity and increases the noise level.
c. Not exceeding Maximum Average Power.
d. Increasing pulse width increases the maximum measurable energy.
e. Nominal value, actual value depends on electrical noise in the measurement system.
f. Load: 1 M&Omh; and ≤ 30 pF.
g. Maximum output voltage = sensitivity x maximum energy.
h. Excludes non-linearities.
i. At 3 W. Maximum Average Power Density is 10 W/cm2 @ 5 W for -H versions.
More information about QED attenuators
Compatible Monitors:
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