General-purpose economical photoreceivers with fast responses
Battery powered
Open-circuit setting for user optimization
Silicon or InGaAs Versions
Out nanosecond photodetectors are ideal for use as general-purpose photodetectors with Q-switched or cw lasers, and their large diameter and DC response make alignment easy. Their simplicity means you get a useful photodetector at an economical price without having to take time away from your experiment to build one.
| Model | Description | Availability | Price | Qty. | |
|---|---|---|---|---|---|
| 1621 | Nanosecond Photodetector, Si, 350-1000 nm, 0.8 mm Diameter, 8-32 / M4 | Contact Sales | ||
| 1623 | Nanosecond Photodetector, InGaAs, 800-1700 nm, 0.1 mm Diameter, 8-32 / M4 | Contact Sales |
Our Nanosecond Photodetectors utilize a Silicon diode providing wavelength coverage from 350 to 1000 nm or InGaAs providing coverage from 800 to 1700 nm.
The user-switchable 50 Ω or 10 kΩ load resistor lets you optimize for response time or sensitivity. Choose a nanosecond response time with 50-V/A sensitivity, or a slower response time with a higher 10,000 V/A sensitivity. The nanosecond rise time at the 50-Ω load setting is fast enough to see your Q-switched pulses. Or use the 10-kΩ resistor setting for alignment purposes and for detecting lower-power pulses and cw light. We’ve even included an open-circuit setting so you can choose the best gain-bandwidth combination for your application.
This photodetector is powered by a single 9-V battery and includes a convenient battery-check feature. All switches and connectors are located on the top of the photodetector, minimizing the space it requires in your experiment. The BNC connector on the top of the housing keeps the cable out of the beam path and makes it easy to connect it to instruments stored on a shelf above the lab bench.
| 1621 | 1623 | |
|---|---|---|
| Wavelength Range (nm) | 350-1000 | 800-1700 |
| Conversion Gain, Maximum (V/W) | 28 | 50 |
| Output Impedance | 50 Ω, 10kΩ, & Open | 50 Ω, 10kΩ, & Open |
| Detector Material | Silicon | InGaAs |
| Output Connector | Male BNC | Male BNC |
| Power Requirements | internal 9-V battery | internal 9-V battery |
| Responsivity (Peak) | 0.55 A/W | 1.0 A/W |
Our filter-holder and FC-fiber-adapter accessories are fully compatible with these photodetectors.
| Model | Description | Availability | Price | Qty. | |
|---|---|---|---|---|---|
| 1280 | Filter Holder, New Focus Detectors | Call | ¥659.19 | ADD |
| 1281 | Fiber Adapter, FC, New Focus Detectors | In Stock | ¥738.76 | ADD |
