These optical power monitors are used
for the measurement and monitoring of optical power from the UV to near IR. The output is a voltage linearly proportional
to power. The fast response time at high signal-noise-ratio makes the
OPM series particularly useful in systems control feedback loops, such
as in fibre alignment systems. The high sensitivity and wide dynamic
range allow measurement of fibre coupled lasers and LEDs alike.
Several options of photodiode material and optical
input, including free beam input, make these units useful in a wide
range of applications including non-telecom metrology. A wide variety of modules are available with TTL-compatible interfaces for full parameter control. The proprietary
auto-nulling function allows up to 7V of offset nulling. This is
particularly useful for eliminating a DC signal component to concentrate
on signal changes, such as during component burn-in and life-time
testing.