Burleigh WA-7600 wavelength meter repair

The Burleigh WA-7600 is the broadest-range wavelength meter in the Burleigh WA series - covering 400 nm to 1600 nm, which means it can characterize everything from visible diode lasers and Ti:sapphire systems through the full telecom C and L bands. It was a common instrument in photonics research labs that needed one meter to cover multiple laser systems. EXFO discontinued WA-7600 support years ago.

The extended range of the WA-7600 means the HeNe reference stability matters even more than on narrower-range instruments - a 0.1 pm reference drift causes the same absolute error at 400 nm and 1600 nm, but the relative error is much larger at 400 nm. Reference laser aging is still the dominant failure mode. The broader optical bandwidth also means the beamsplitter coating and detector can show wavelength-dependent degradation that’s harder to characterize with a single test wavelength. GPIB interface failures, fiber input wear, and interferometer alignment are the next failure categories.

We test the HeNe reference, verify accuracy at multiple wavelengths across the full range (visible and NIR), check GPIB function, and inspect the optical input. Reference tube assessment, optical cleaning, interferometer alignment, and NIST-traceable calibration complete the service.

Flat-rate estimate: $100. Turnaround 1–3 days. International shipping available.