We initially developed the NRT-150 to help customers using the NRT-2500 or NRT-250 for Tracker applications, specifically when trying to track to a minimum light level. This problem is challenging. On one hand the goal is to minimize the number of photons, yet you need photons to generate a reliable Tracker feedback signal. With a (normal) linear photodiode amplifier, the voltage gets too small to track as the minimization darkens the output. Using the NRT-150 log amplifier ‘compresses’ the high power voltage output and ‘expands’ the voltage output at lower optical power.
Below is an example of the log response through almost 6 decades of detected optical power.
- Calibrated from -3 dBm to below less than -55 dBm
- Response approximately 200 kHz
- Powered by 5 Volt power supply inputs
- Compact size
For more information, please contact New Ridge Technologies:
firstname.lastname@example.org or call: +1-410-753-3055