Coherent Measurements

Since the Q8344A uses a Michelson interferometer, it can be used for coherence measurements.

This feature makes it easy to evaluate the performance of noise suppression caused by

the return light of laser diodes in video disks.

An analysis range of approximately ±10 mm enables measurement of

the coherence length of SLDs (Super Light Emitting Diodes) used in fiber optic gyros.

High-speed measurement at 1.5 sec/scan

Ideal for production applications

The Q8344A utilizes a Fourier spectroscopy system so that measurements can be completed in less than 1.5 seconds,

regardless of the measurement span and sensitivity (provided that the starting wavelength is 0.4 µm

or longer and that the measurement does not cover both short and long wavelengths).

The analyzer is therefore suitable for measuring laser diodes and light emitting diodes on production lines.

In addition, it can be used to evaluate the transmission and loss characteristics of optical fibers and filters.

When used as a system component, the analyzer can be triggered, measured,

and output data in just 1.5 seconds, dramatically increasing system throughput.