Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Instrument Expert
Original factory packaging
Service Hotline：
(+86)010-52867771
Updated:2025-03-13
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The IS1.5-IRG-FPD-800 provides multiple measurement capabilities in a single integrating sphere device: a) a precision photodiode for calibrated average power measurement, b) a fast photodiode for pulse shape characterization on an oscilloscope and a built in SMA fiber adapter, and c) an SMA fiber optic adapter for easy connection to a spectrometer. The IS1.5-IRG-FPD-800 has a small internal diameter of 1.5 inch (38mm), to minimize the pulse stretching effect inherent to integrating spheres, giving it a time constant of 0.7ns. Together with its fast InGaAs photodiode, the IS1.5-IRG-FPD-800 provides a pulse rise time of 0.8ns and a fall time of 5ns.
IS1.5-IRG-FPD-800 Drawing
| Detector Type | InGaAs & Fast InGaAs |
| Spectral Range | 940-1640nm |
| Power Range | 600nW-3W |
| Input Port Aperture | ?20mm |
| Maximum Beam Divergence | ±50 deg |
| Fiber Optic Port | SMA connector, maximum NA 0.44 |
| Dimensions | 67 L x 52 W x 61 D (mm) |
| Detector 1 | InGaAs photodiode, calibrated power measurement |
| Spectral Range (det. 1) | 940–1640nm |
| Power Range (det. 1) | 600nW–3W |
| Output (det. 1) | Smart Head, D15 |
| Detector 2 | Fast InGaAs photodiode, temporal pulse shape detection |
| Spectral Range (det. 2) | 940–1640nm |
| Rise Time (det. 2) | 0.8 nsec |
| Fall Time (det. 2) | 5 nsec |
| Typical CW Responsivity @ 1100-1500nm | 0.14 typ. mA/W |
| Noise Current | 15.5 typ. fA/√Hz |
| Output (det. 2) | Analog current |
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