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The Newport 818-IS-1 Universal Fiber Optic Detector, use a symmetrical integrating sphere design to ensure accurate calibration, regardless of the fiber type measured. The integrating sphere uses a novel dual detector design, with special optics that improve temperature sensitivity markedly from ordinary detectors. The 818-IS-1 is compatible with Newport's legacy power meters utilizing calibration modules, while the 918D-IS versions have an integral DB15 connector and are compatible with Newport's new power meters. Maximum versatility is provided by the detector’s dual port design. A variety of adaptors for connector-terminated fibers are provided, and plug into the detector’s front port. The rear port is designed to measure light from straight and angle cleaved bare fibers, using Newport’s FP3-FH1 bare fiber holder. Specifications. Spectral Range (nm): 400 to 1650. Saturation Power (mW): > 200. Saturation Energy (µJ) 10–15 ns pulse: >1. Pulse Energy, Maximum (µJ): 100. Calibration Uncertainty: <5% @ 410 to 640nm, 3% @ 650 to 1650nm. Responsivity: >0.0025 (400 to 600 nm), >0.0040 ( 610 to 1650 nm). Rise Time (µs): <=2. Shunt Resistance (M-ohm): >=20. Die Capacitance (pF): 800 max. NEP @ 5 Hz and 1 A/W (pW/sqRt Hz): 3. Material: InGaAs/Si.
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