Gentec Energy Detectors

All QE detectors are pyroelectric devices measuring the energy of individual laser pulses. They connect via a smart interface that carries the full calibration data, and are compatible with the MIRO ALTITUDE, MAESTRO, U-LINK, S-LINK, M-LINK, and the INTEGRA all-in-one option for direct PC connection.

QE-MB SERIES — BROADBAND ABSORBER, GENERAL PURPOSE

The standard QE range for most pulsed energy measurement applications. The MB (molybdenum black) absorber provides excellent broadband response from 248 nm to 2.1 µm. Available in six aperture sizes: QE12 (12 × 12 mm), QE25, QE50, QE65, QE95, and QE195-MB for large multi-joule beams. The QE12LP runs to 300 Hz; the QE12HR variant reaches 1 kHz. Optional QED attenuators extend the measurable energy by up to 5×, with calibration available across 532–1064 nm or for a single wavelength.

QE-MT SERIES — ALTERNATIVE COATING

The MT coating provides a different spectral absorption profile suited to specific wavelength ranges or applications where the MB coating is less optimal. Available across the same aperture range as the QE-MB. Contact us to confirm suitability for your laser wavelength.

QE-B SERIES — ULTRA-LOW ENERGY DETECTION

The QE-B measures from 50 nJ (MB coating) or 100 nJ (BL coating) — providing pyroelectric energy measurement at sensitivity levels that would typically require a photodiode. Two coating options available. Compatible with the MAESTRO, U-LINK, S-LINK, and M-LINK via the APM(D) analogue supply.

STANDARD EQUIPMENT

Smart interface connector with embedded NIST-traceable calibration data

Available output options: DB15, USB, RS-232 (INTEGRA variants: -INT, -IDR, -INE)

Compatible displays: MIRO ALTITUDE, MAESTRO

Compatible PC interfaces: U-LINK, S-LINK, M-LINK

Optional QED attenuators for up to 5× energy extension

• QE-MB: broadband pyroelectric energy detector, 248 nm – 2.1 µm, six aperture sizes (12 to 195 mm)
• QE12LP: up to 300 Hz; QE12HR: up to 1 kHz — highest repetition rate in the QE range
• QE-B: ultra-low energy detection from 50 nJ — pyroelectric sensitivity approaching a photodiode
• QE-MT: alternative coating for specific spectral response requirements
• Optional QED attenuator: extends measurable energy up to 5× — calibration available across 532–1064 nm
• All QE detectors: NIST-traceable calibration in smart interface connector
• Compatible with MIRO ALTITUDE, MAESTRO, U-LINK, S-LINK, M-LINK, and INTEGRA (all-in-one)
• INTEGRA option: direct PC connection — no separate meter required; now also readable on MIRO ALTITUDE

• PULSED LASER ENERGY MEASUREMENT
  • The primary application of the QE series — measuring pulse energy from Q-switched, mode-locked, and other pulsed laser sources across UV to mid-IR. The QE12HR supports up to 1 kHz for high-repetition-rate systems; the QE195 handles large-aperture, high-energy beams.
• LASER SYSTEM CALIBRATION & CHARACTERISATION
  • Establishing accurate pulse energy as a function of pump current, repetition rate, or attenuator position. The QE series’ NIST-traceable calibration and ±3% uncertainty make it the standard choice for system-level laser characterisation in research and manufacturing.
• PULSED FIBRE & SOLID-STATE LASER MONITORING
  • Monitoring of Q-switched Nd:YAG, Nd:YVO₄, Er:YAG, and pulsed fibre lasers in medical device manufacturing, materials processing, and range-finding systems.
• ULTRASHORT PULSE ENERGY MEASUREMENT
  • The QE-MB series measures pulse energy from ps and fs laser sources, complementing beam profiling data from the BEAMAGE range for full pulse characterisation.
• MEDICAL LASER SAFETY & DOSIMETRY
  • Pulse energy measurement in ophthalmic, dermatological, and surgical laser systems — where per-pulse energy accuracy directly relates to patient safety and treatment efficacy.
• LOW-ENERGY PULSE DETECTION
  • The QE-B series covers sub-microjoule pulse energies from low-power mode-locked oscillators, diode-pumped microchip lasers, and attenuated research sources where standard pyroelectric detectors are insufficiently sensitive.