Product Overview:
The 228 optical wavemeter uses a proven optical interferometer-based design to measure the wavelength of continuous lasers with the highest accuracy. Two versions are available. Type 228A is the most accurate, measuring wavelengths with an accuracy of ± 0.3 pm. For less stringent test requirements, Type 228B is a less expensive alternative with a wavelength accuracy of ± 1.0 pm.
Features:
Wavelength measurement accuracy up to ± 0.3 pm
Continuous calibration using built-in wavelength standards
Measurement confidence ≥ 99.7%
Traceability to NIST standards
The optical power is measured at the same time, ± 0.5 dB
Operates in the 700 to 1650 nm range
The measurement rate of 10 Hz can shorten the test time
Robust design for manufacturing environments
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