Product Description
Oriel 70129 Pyroelectric Detector – Broadband IR/Laser Energy Measurement
This used Oriel 70129 is a pyroelectric detector designed for measuring pulsed laser energy and detecting infrared radiation. Oriel Instruments (now part of Newport Corporation) is a leading manufacturer of optical components, light sources, and detection systems for research and industrial applications.
Pyroelectric detectors are thermal detectors that generate a current when exposed to modulated or pulsed radiation, making them ideal for:
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Pulsed laser energy measurement
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IR spectroscopy
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Laser beam profiling
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Thermal source monitoring
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CO₂ laser detection
Key Features & Specifications
| Specification | Details |
|---|---|
| Manufacturer | Oriel Instruments (Newport) |
| Model | 70129 |
| Type | Pyroelectric detector |
| Detector Material | [Likely LiTaO₃ or similar pyroelectric crystal] |
| Spectral Range | Broadband – UV to Far IR (typical pyroelectric) |
| Active Area | [If known, mm²] |
| Operation | Room temperature (no cooling required) |
| Frequency Response | Modulated/pulsed signals |
| Applications | Pulsed laser measurement, IR detection |
| Window | [If present, window material – may be removable] |
| Mounting | [Standard detector mount] |
About Pyroelectric Detectors
Pyroelectric detectors operate on the principle that some crystalline materials generate a temporary voltage when heated or cooled. This makes them ideal for:
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Measuring pulsed lasers where fast thermal response is needed
-
Broadband IR detection without cooling
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High energy pulse measurement with appropriate attenuation
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Room temperature operation – no liquid nitrogen or thermoelectric cooling
They are particularly useful for CO₂ lasers (10.6µm) and other IR sources where photodetectors require cooling.
Applications
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Pulsed Laser Energy Measurement: Nd:YAG, CO₂, excimer lasers
-
IR Spectroscopy: Detecting modulated IR signals
-
Laser Beam Profiling: With scanning or camera systems
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Thermal Source Monitoring: Blackbody radiators, hot sources
-
CO₂ Laser Detection: 10.6µm wavelength
-
Education: Teaching detector principles
Condition
SOLD AS IS
USED – SHOWS NORMAL HANDLING (scuffs, minor marks)
RESPONSIVITY NOT TESTED
NO PREAMPLIFIER, MOUNTING HARDWARE, OR DOCUMENTATION INCLUDED
PICTURE MAY NOT MATCH PRODUCT
⚠ HANDLING NOTE: Pyroelectric detectors are sensitive to shock and contamination. Avoid touching the detector element. If a window is present, inspect for cleanliness but do not attempt to clean unless absolutely necessary and with proper technique.



