| Model | 11UP55N-40S-H9 | 11UP55N-100H-H9 | 11UP55N-300F-H12 | 11UP55M-500W-H12 | 
		
			| MAX AVERAGE POWER (CONTINUOUS / 1 MINUTE) | 40 W / 80 W | 100 W / 200 W | 300 W / 300 W | 500 W f / 500 W f | 
		
			| EFFECTIVE APERTURE | 55 mm Ø | 55 mm Ø | 55 mm Ø | 55 mm Ø | 
		
			| COOLING METHOD | Convection | Heatsink | Fan-Cooled | Water-Cooled | 
		
			| MEASUREMENT CAPABILITY | 
		
			| Spectral Range * | 0.19 – 20 µm | 0.19 – 20 µm | 0.19 – 20 µm | 0.19 – 20 µm | 
		
			| Noise Equivalent Power a | 5 mW | 5 mW | 15 mW | 15 mW | 
		
			| Rise Time (nominal) b | 2 sec | 2 sec | 2 sec | 2 sec | 
		
			| Sensitivity (typ into 100 kΩ load) c | 0.12 mV/W | 0.12 mV/W | 0.06 mV/W | 0.06 mV/W | 
		
			| Calibration Uncertainty d | ±2.5 % | ±2.5 % | ±2.5 % | ±2.5 % | 
		
			| Repeatability | ±0.5 % | ±0.5 % | ±0.5 % | ±0.5 % | 
		
			| Energy Mode | 
		
			| Sensitivity | 0.028 mV/J | 0.028 mV/J | 0.015 mV/J | 0.015 mV/J | 
		
			| Maximum Measurable Energy e | 200 J | 200 J | 200 J | 200 J | 
		
			| Noise Equivalent Energy a | 0.25 J | 0.25 J | 0.25 J | 0.25 J | 
		
			| Minimum Repetition Period | 11.1 sec | 11.1 sec | 12 sec | 12 sec | 
		
			| Maximum Pulse Width | 433 ms | 433 ms | 430 ms | 430 ms | 
		
			| Accuracy with energy calibration option | ±5 % | ±5 % | ±5 % | ±5 % | 
		
			| DAMAGE THRESHOLDS | 
		
			| Maximum Average Power Density | 
		
			| 1064 nm, 10 W, CW | 45 kW/cm2 | 45 kW/cm2 | 45 kW/cm2 | 45 kW/cm2 | 
		
			| 10.6 µm, 10 W, CW | 14 kW/cm2 | 14 kW/cm2 | 14 kW/cm2 | 14 kW/cm2 | 
		
			| Pulsed Laser Damage Thresholds | Max Energy Density | Peak Power Density | 
		
			| 1064 nm, 360 µs, 5 Hz | 9 J/cm2 | 25 kW/cm2 | 
		
			| 1064 nm, 7 ns, 10 Hz | 1 J/cm2 | 143 MW/cm2 | 
		
			| 532 nm, 7 ns, 10 Hz | 0.6 J/cm2 | 86 MW/cm2 | 
		
			| 248 nm, 7 ns, 10 Hz | 0.3 J/cm2 | 43 MW/cm2 | 
		
			| PHYSICAL CHARACTERISTICS | 
		
			| Effective Aperture | 55 mm Ø | 55 mm Ø | 55 mm Ø | 55 mm Ø | 
		
			| Absorber (High Damage Threshold) | H9 | H9 | H12 | H12 | 
		
			| Dimensions | 89H x 89W x 32D mm | 89H x 89W x 106D mm | 89H x 89W x 116D mm | 89H x 89W x 40D mm | 
		
			| Weight (head only) | 0.62 kg | 0.93 kg | 1.41 kg | 0.81 kg |