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The USB2000 (and its variant USB2000+) is a miniature fiber-optic spectrometer made by Ocean Optics (now under Ocean Insight).
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It captures and measures optical spectra (intensity vs. wavelength) across a selected spectral range, typically in the UV–visible–near infrared (UV–Vis–NIR).
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It has no moving parts (no scanning monochromator) — it uses a CCD array to measure many wavelengths simultaneously.
Key Specifications & Characteristics
Here are some main specs (depending on model/configuration) that are commonly quoted:
| Parameter | Typical Value / Range |
|---|---|
| Detector | 2048-element linear CCD (Sony ILX511) |
| Wavelength range | ~200 nm to ~1100 nm (depending on grating / version) |
| Optical resolution (FWHM) | ~0.3 nm |
| Integration time (exposure) | From ~1 ms up to many seconds (varies by model) |
| Slit / entrance aperture | Multiple slit widths (e.g. 5, 10, 25, 50, 100, 200 µm) or fiber coupling |
| Interface / communication | USB (often USB 2.0) plus optional RS232 for some versions |
| Power requirements | Powered via USB (i.e. from host computer) |



