The wavelength calibration light sources are essential tools for spectrometer calibration. They provide accurate and reliable calibration across the UV–NIR wavelength range.
The CAL series includes gas discharge emission lamps CAL-Hg (253–922 nm), CAL-Kr (427–893 nm), CAL-Ne (540–754 nm), CAL-Ar (696–1704 nm), and CAL-Xe (916–1984 nm). Each source features specific emission lines covering a wide spectral range.
With multiple wavelength options and emission lines, these sources help users achieve high-precision calibration within their regions of interest. Users can choose a single source or a combination of multiple sources to match their measurement range and accuracy requirements. This flexibility makes the calibration process simpler and more efficient, significantly improving the accuracy and reliability of spectral measurements.

Emission lines of Mercury-Argon Lamp

Emission Lines of Xenon Lamp
The CAL series includes gas discharge emission lamps CAL-Hg (253–922 nm), CAL-Kr (427–893 nm), CAL-Ne (540–754 nm), CAL-Ar (696–1704 nm), and CAL-Xe (916–1984 nm). Each source features specific emission lines covering a wide spectral range.
With multiple wavelength options and emission lines, these sources help users achieve high-precision calibration within their regions of interest. Users can choose a single source or a combination of multiple sources to match their measurement range and accuracy requirements. This flexibility makes the calibration process simpler and more efficient, significantly improving the accuracy and reliability of spectral measurements.
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Features
- Accurate and reliable: gas discharge light sources generate atomic emission lines for reliable spectrometer wavelength calibration
- Easy operation: only power supply and optical fiber are required for calibration
- High stability and repeatability
- Standard SMA905 fiber interface
- Stabilization time: ~1 minute
- Lamp lifetime: 3500 h (typical)
- Aperture: 3 mm
- UV–NIR coverage, multiple sources available for selection
- Calibration lines printed on the housing, easy to use
- 12V DC power supply
- Dimensions: 207 × 160 × 75 mm; weight: 1.8 kg
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Dimensional Drawing

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Model Selection Table
| Model | Product Appearance | Product Name | Spectral Range (nm) |
| CAL-Hg | ![]() |
CAL-Hg Mercury-Argon Lamp |
253-922 |
| CAL-Kr | ![]() |
CAL-Kr Krypton Lamp |
427-893 |
| CAL-Ne | ![]() |
CAL-Ne Neon Lamp |
540-754 |
| CAL-Ar | ![]() |
CAL-Ar Argon Lamp |
696-1704 |
| CAL-Xe | ![]() |
CAL-Xe Xenon Lamp |
916-1984 |
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Application
- Wavelength calibration of spectrometers in the UV–NIR region
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Emission Spectra
- CAL-Hg Mercury-Argon Lamp (253–922 nm)
Emission spectrum of CAL-Hg lamp

Emission lines of Mercury-Argon Lamp
| 253.652 | 738.393 |
| 296.728 | 750.387 |
| 302.150 | 763.511 |
| 313.155 | 772.376 |
| 334.148 | 794.818 |
| 365.015 | 800.616 |
| 404.656 | 811.531 |
| 407.783 | 826.452 |
| 435.833 | 842.465 |
| 546.074 | 852.144 |
| 576.960 | 866.794 |
| 579.066 | 912.297 |
| 696.543 | 922.450 |
| 706.722 | |
| 714.704 | |
| 727.294 |
- CAL-Kr Krypton Lamp (427–893 nm)
Emission spectrum of CAL-Kr lamp

Emission Lines of Krypton Lamp
| 427.397 | 760.155 |
| 428.297 | 768.525 |
| 431.958 | 769.454 |
| 436.264 | 785.482 |
| 437.612 | 791.343 |
| 439.997 | 805.95 |
| 445.392 | 810.436 |
| 446.369 | 819.006 |
| 450.235 | 826.324 |
| 556.222 | 829.811 |
| 557.029 | 877.675 |
| 587.096 | 892.869 |
| 758.741 |
- CAL-Ne Neon Lamp (540–754 nm)
Emission spectrum of CAL-Ne lamp

Emission Lines of Neon Lamp
| 540.056 | 638.299 |
| 576.441 | 640.225 |
| 582.015 | 650.653 |
| 585.249 | 653.288 |
| 588.189 | 659.895 |
| 594.483 | 667.828 |
| 597.553 | 671.704 |
| 602.000 | 692.947 |
| 607.433 | 703.241 |
| 609.616 | 717.394 |
| 612.884 | 724.512 |
| 614.306 | 743.89 |
| 616.359 | 747.244 |
| 621.728 | 748.887 |
| 626.649 | 753.577 |
| 630.479 | 754.404 |
| 633.442 |
- CAL-Ar Argon Lamp (696–1704 nm)
Emission spectrum of CAL-Ar lamp

Emission Lines of Argon Lamp
| 866.794 | 1213.974 | 1362.266 |
| 912.297 | 1234.339 | 1367.855 |
| 922.450 | 1243.932 | 1371.858 |
| 935.422 | 1248.766 | 1382.572 |
| 965.779 | 1270.228 | 1390.748 |
| 978.450 | 1273.342 | 1409.364 |
| 1047.005 | 1280.274 | 1504.650 |
| 1067.357 | 1295.666 | 1517.269 |
| 1107.887 | 1300.826 | 1532.934 |
| 1144.183 | 1322.811 | 1598.949 |
| 1148.811 | 1327.264 | 1694.058 |
| 1166.871 | 1331.321 | 1704.288 |
| 1171.949 | 1336.711 | |
| 1211.233 | 1350.419 |
- CAL-Xe Xenon Lamp (916–1984 nm)
Emission spectrum of CAL-Xe lamp

Emission Lines of Xenon Lamp
| 916.265 | 1647.29 |
| 979.97 | 1656.023 |
| 992.319 | 1672.815 |
| 1083.837 | 1763.882 |
| 1262.339 | 1790.45 |
| 1365.706 | 1809.09 |
| 1414.244 | 1832.53 |
| 1473.281 | 1959.94 |
| 1541.839 | 1984.638 |
| 1605.328 |





