Overview of Single Photon Counting Modules
The Single Photon Counting Module by Excelitas Technologies feature a 180 µm-diameter active area and a wavelength range form 400 nm to 1100 nm. The peak QE is > 70% at 700 nm. The photodiode is both thermally cooled and temperature-controlled ensuring stable operations between 5 °C and 60 °C. A TTL level pulse is generated for each photon detected. Six different options are available featuring dark counts from 25 counts/sec to 1500 counts/sec.
Product Specifications for Single Photon Counting Modules
| Part No. | SPCM-AQRH | SPCM-AQRH-TR |
|---|---|---|
| Wavelength Range (nm) | 400 - 1060 | 400 - 1060 |
| Peak Sensitivity Wavelength (nm) | 650 | 650 |
| Quantum Efficiency | 70% at 650 nm | 70% at 650 nm |
| Dark Counts (cooled version) (c/s @ T=30) | 7 versions: from 25 c/s to 1500 c/s | 5 versions: from 100 c/s to 1500 c/s |
| Effective Area Diameter (µm) | 180 | 180 |
| Transit Time Spread (FWHM, typ. Value) | 350 ps | 225 ps |
| Max Count Rate | 12M c/s |
