XOA-2400 / XOA-2500 Optical Spectrum Analyzers

Extended Near-Infrared and SWIR Optical Spectrum Analysis

The XOA-2400 / XOA-2500 Series measures optical spectra from telecom wavelengths into the short-wave infrared. Choose XOA-2400 for 1200 to 2400 nm coverage. Choose XOA-2500 when the test window must extend down to 1000 nm, up to 2500 nm, or across both extended edges.

The family description does not mean that XOA-2400 covers the complete 1000 to 2500 nm span. Wavelength range, sensitivity coverage, and conditioned performance must be checked separately.

Model Selection

Parameter	XOA-2400	XOA-2500
Wavelength range	1200 to 2400 nm	1000 to 2500 nm
Scan span	0.5 to 1200 nm including full range; 0 nm	0.5 to 1500 nm including full range; 0 nm
Standard resolution settings	0.05, 0.1, 0.2, 0.5, 1, and 2 nm	0.05, 0.1, 0.2, 0.5, 1, and 2 nm
Minimum sampling interval	0.002 nm	0.002 nm
Sample points	101 to 50,001 plus AUTO	101 to 50,001 plus AUTO

Wavelength Performance

Parameter	Published performance for both models
Accuracy, 1520 to 1580 nm	±0.05 nm
Accuracy, 1580 to 1620 nm	±0.10 nm
Accuracy over the model’s full range	±0.50 nm
Linearity, 1520 to 1580 nm	±0.01 nm
Repeatability	±0.015 nm over 1 minute

The interval-specific accuracy values are not extended beyond their stated bands. The ±0.50 nm figure is the full-range value for each selected model.

Sensitivity Coverage in HIGH3

Wavelength interval	XOA-2400	XOA-2500
1000 to 1200 nm	Not applicable	Not specified
1200 to 1300 nm	Not specified	Not specified
1300 to 1500 nm	-50 dBm	-50 dBm
1500 to 1800 nm	-52 dBm	-52 dBm
1800 to 2200 nm	-65 dBm	-65 dBm
2200 to 2400 nm	-52 dBm	-52 dBm
2400 to 2500 nm	Not applicable	Not specified

Unspecified edge bands are not treated as zero and are not filled by extrapolating adjacent values.

Dynamic Range and Optical Power

• Dynamic range: 40 dB at ±0.4 nm from the peak and 50 dB at ±0.8 nm from the peak, specified at 1523 nm, 0.05 nm resolution, and HIGH1 to HIGH3.
• Maximum input: +20 dBm per channel over the full model range.
• Maximum safe input: +25 dBm total input power.
• Power accuracy: ±1.0 dB at 1550 nm and -20 dBm input in MID or HIGH1 to HIGH3.
• Power linearity: ±0.05 dB from -30 to +10 dBm input in HIGH1 to HIGH3.
• Polarization dependence: ±0.2 dB at 1550 nm.

Optical Input and Applications

Both models support free-space optical input, SM 9.5/125 µm fiber, MM GI 50/125 µm, GI 62.5/125 µm, and large-core fiber up to 200 µm. The 12.1-inch touch interface and integrated analysis functions support LED, FP-LD, DFB-LD, optical-transceiver, DWDM, amplifier, fiber, grating, SWIR, sensing, and medical measurement workflows.

External-source calibration and optical-axis alignment are supported when the gas-absorption-cell calibration-source option is not fitted. Published specifications do not establish that calibration source as standard equipment.

Scope to Confirm During Quotation

Published XOA-2400 / XOA-2500 specifications do not state mechanical dimensions, mass, mains-power requirements, environmental limits, warranty terms, detailed remote-control interfaces, or standard-supply contents. Include those requirements, the selected model, wavelength band, expected optical power, desired input interface, and calibration documentation in the quote request.