The ML910B optical power meter provides two
independent channels and advanced functions,
enabling a variety of sophisticated optical-power
measurements. Seven types of optical sensors are
available to suit a variety of applications — any two
can be connected as required.
The two channels are completely independent,
and have separate displays, providing the same
versatility that previously required two meters.
Processing between channels is also possible.
If a feed-through sensor is used, fluctuations in the
output level of the optical source can be canceled,
enabling exceptionally precise relative measurements
with a resolution down to 0.001 dB.
Wavelengths from 0.38 to 1.8 µm can be measured,
with sensitivity down to –90 dBm
at 1.3 µm. The optical sensors have a built-in ability
to respond to any wavelength in their specified
range, so direct readout of the absolute optical
power is possible simply by specifying the
wavelength. A simple change in connections permits
uncompensated measurements as well.