Choose an optical spectrum analyzer by matching the complete measurement window, not one headline specification. Start with wavelength coverage, then verify resolution, sensitivity, dynamic range, input coupling, analysis functions, and the evidence required from the measurement.
Quick Recommendation
| Measurement need | Recommended family | Published coverage |
|---|---|---|
| Visible and near-infrared sources and components | XOA-1200 | 350 nm to 1200 nm |
| Telecom lasers, DWDM, amplifiers, and fibre systems | XOA-1700-R20 / R10 | 600 nm to 1700 nm |
| Extended near-infrared and SWIR sources | XOA-2400 / XOA-2500 | Up to 2400 nm or 2500 nm, depending on model |
Selection Checklist
- Required wavelength range and scan span
- Minimum line separation and applicable resolution setting
- Expected optical-power range, sensitivity, and dynamic-range target
- Free-space or fibre input, connector, and fibre type
- Calibration, analysis, storage, automation, and acceptance requirements
Review the XOA family comparison, then confirm wavelength-dependent limits and configuration options against the selected product datasheet before quotation.
FAQ
Engineering FAQ
Is an optical spectrum analyzer the same as an RF spectrum analyzer?
No. An optical spectrum analyzer measures optical power versus wavelength or optical frequency. An RF spectrum analyzer measures electrical RF power versus frequency.
Which XOA family fits visible-light measurements?
XOA-1200 covers 350 nm to 1200 nm and is the starting point for visible and near-infrared sources. Confirm resolution and sensitivity at the required wavelength.
Which XOA family fits telecom and SWIR measurements?
Use XOA-1700-R20 or XOA-1700-R10 for optical-communications work up to 1700 nm. Use XOA-2400 or XOA-2500 for extended near-infrared and SWIR measurements.