Updated:2025-01-23
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Gentec-EO M6-6-In-L Ultrafast Joulemeter for laser energy measurement up to 2 µJ.
InGaAs absorber
Our InGaAs absorber makes it possible for this photodiode-based detector to measure very low energy levels fast in the NIR wavelength range (900 – 1700 nm).
Wide dynamic range
Very low noise
Not sensitive to visible light
Less sensitive to vibrations than pyroelectric detectors
Key Features
Up to 200 kHz Pulse-to-Pulse
Measure every pulse, with no sampling, at high rep rates, up to 200 kHz
Capture and Store up to 4 million Pulses
Store 40 seconds of data at 100 kHz
Track Missing Pulses and Pulses Below Threshold
Know how many pulses were missed or that didn’t make the energy threshold with this unique pulse feature
Several Heads to Choose From
Silicon, InGaAs and pyroelectric heads for a broad wavelength and energy range
Analog Module Available
Use our fast M6 detectors with the APM (LEMO) and an oscilloscope for fast analog energy measurements
Full-Speed USB 2.0 Connection
Ensures high data rate transfer and fast operation
User-Friendly Software with Many Diagnostic Features
Live mode, strip chart, histogram and statistics displays
FFT display of pulse energy data for temporal diagnostics
Life test mode to automate laser testing
Specifications
Measurement capabilities | |
Spectral range | 0.9 - 1.6 μm |
Typical rise time | 150 ns |
Repeatability | ±1 % |
Maximum repetition frequency | 200000 Hz |
Maximum measurable energy | 2 μJ |
Noise equivalent energy | 20 pJ |
Maximum pulse width | 100 ns |
Energy calibration uncertainty | ±4 % |
Damage thresholds | |
Maximum power | 5 W |
Physical characteristics | |
Aperture diameter | 6 mm |
Absorber | InGaAs |
Dimensions | 38.1 Ø x 58.4D mm |
Weight | 0.15 kg |
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