The CUV-UV-10 Cuvette Holder for 10-cm path length cuvettes couples via SMA-terminated optical fibers to Ocean Optics high-sensitivity miniature fiber optic spectrometers and light sources to create small-footprint spectrophotometric systems for absorbance/transmission measurements of aqueous solutions and gases. This compact cuvette holder is optimized for UV-VIS-NIR (~200 nm-2 µm) applications.

CUV-UV-10: $635

The CUV-UV-10 consists of these key components:

• Two adjustable 5-mm diameter f/2 quartz collimating lenses

• Cell compartment that accepts 10-cm cuvettes

• Built-in filter slot

• Manual light block for dark measurements

• Internal channels designed to accept a constant-temperature water source (for heating and cooling of the base and cuvette, by means of convection)

• SMA 905 terminations for coupling to fiber optics.

Each cuvette holder assembly comes with a black cover, which can be used to eliminate ambient light.

Using the 10-cm cuvette holder is simple: Attach one SMA-terminated optical fiber to one of the assembly's collimating lenses and another SMA-terminated optical fiber to the assembly's other collimating lens. One of these fibers -- the illumination fiber -- is coupled to a fiber optic light source. The other fiber -- the read fiber -- is coupled to the spectrometer. In some instances, you may wish to adjust the collimating lenses for precise positioning of the fiber at the lens focal point.

"Z" Dimension

Cuvettes and cuvette holders offered by Ocean Optics have a "Z" dimension of 15 mm. Only the qpod has a Z dimension of 8.5 mm.

User's Tip

The collimating lenses common to each cuvette holder can be unscrewed from the holder assembly and used separately in any fixture for applications that require a fiber for free-beam coupling, such as on-line transmission or reflection.

* There is no single combination of optical fibers that satisfies the requirements of every application. As a rule, however, it is best to use a large-diameter (>50 µm) illumination fiber to get maximum light throughput and a small-diameter (<50 µm) read fiber to achieve the best optical resolution.