The FA Series IR Adapter enables fibre optic input with the IR and MIR versions of the 671 Laser Wavelength Meter and the 771 laser spectrum analyser. It mounts directly onto the front panel of these instruments. It includes a connector that can accept an FC/PC optical fibre with a core diameter as large as 50 µm. It also includes a 2-axis angular adjustment for alignment purposes.
The FA Series IR Adapter must be ordered with the desired 671/771 system. It is attached and aligned at the factory. Due to various factors, including the difficulty in achieving optimum alignment, wavelength measurement accuracy is reduced to ± 3 parts per million.