The 818-ST2/DB is a wand-style photodiode sensor with a 10 mm × 10 mm silicon active area, designed for optical power measurements from 400 to 1100 nm. It features a built-in calibrated OD3 attenuator and a detachable BNC/DB15 calibration module for compatibility with Newport power meters. The sensor is housed in a rugged anodized aluminum casing to withstand high-power UV exposure. It has a maximum measurable power of 2 W, linearity of ±0.5%, and uniformity of ±2% across the active area. Calibration uncertainty is 1% at 400-940 nm and 4% at 941-1100 nm without attenuator, and 1% at 400-940 nm and 4% at 941-1100 nm with attenuator. Noise equivalent power is 0.015 W/√Hz. Dimensions are 19.1 mm length, 16.8 mm diameter, and 5.4 mm active area diameter.
The 818-ST2/DB is a newly redesigned thin-profile, wand detector with a sturdy metal housing. Incorporating a large area 10 mm X 10 mm Si photodiode, this slim optical sensor is ideal for laser and other optical power measurements in tight locations with busy setups. It even provides a built-in calibrated OD3 attenuator at the flick of a button. The DB15 calibration module is detachable from the BNC connector, allowing interfacing with Newport meters, an oscilloscope, or a current meter as well. The 818-ST/DB photodetector is supplied with a NIST traced calibration report that details individual detector responsivity from 400-1100 nm measured with and without attenuator. Includes a BNC to DB15 calibration module. For the 3D model, check 918D-ST-SL.
Note that Models 818-ST2 and 818-ST2/CM are no longer available for purchase.
| Newport MKS | |
|---|---|
| Product Category | Electrical Power Sensors |
| Product Number | 818-ST2/DB |
| Product Name | Power Detector, Wand-Style, Silicon, 400-1100 nm, OD3 Attenuator, DB15 |
