The LBTEK Cuvette Holder with Fiber Optic Port CMH1 is designed to hold cuvettes measuring 12.5 mm × 12.5 mm × 45 mm with a Z-direction dimension of 8.5 mm. This holder features four SM1 optical ports on the side, compatible with SM1 lens tubes, and includes two SM1 protective end caps (SM1-C2) to cover unused ports, preventing dust from entering the components. The cuvette holder includes the following accessories: (1) An interchangeable SMA-to-SM1 fiber adapter, enabling direct connection of the cuvette holder to fiber-based light sources, detectors, or spectrometers for SMA-terminated fiber output. This adapter incorporates a fixed, non-removable uncoated aspheric condenser lens (AC4101: f=8 mm, NA=0.61). For applications requiring different lenses, the fiber adapter can be replaced with LBTEK's CMH1-FOT fiber adapter. (2) A CMH1-FH filter holder accommodating Ø25.4 mm filters with thicknesses ranging from 3.5 mm to 7 mm. The filter holder is positioned between the cuvette and one of the ports to achieve wavelength isolation of incident or emitted radiation. For quick filter replacement, LBTEK offers the Ø25.4 mm filter holder CMH1-FH for separate purchase. Users can select suitable accessories based on their specific requirements.

The Ø25.4 mm Filter Holder provided by LBTEK can be used with the CMH1 cuvette holder to achieve rapid switching of filters. This filter holder accommodates filters with a diameter of Ø25.4 mm and thickness between 3.5 mm to 7 mm, secured by M4 rubber-tipped set screws.

The LBTEK SMA to SM1 Fiber Adapters can be used with Ø1/2-inch plano-convex collimating lenses and inserted into the optical path. This adapter can replace SMA fiber adapters that include CMH1. It comes with 6.8 mm and 9.6 mm spacers and an SM05R retaining ring for securing the lens. Note: This adapter does not include a lens. Users can optionally select other plano-convex lenses provided by LBTEK, such as CX10304 and CX20304. To avoid damaging optical components when securing the retaining ring, it is recommended to use the OWR-05A retaining ring spanner wrench. When installing the plano-convex lens, the flat side should face the fiber.

The LBTEK Cuvette Holder Cover must be used in with the CMH1 cuvette holder. Its purpose is to protect the cuvette from stray light and ambient light entering from above the holder. When using this cover, it is recommended to install cuvettes with a maximum height of 50 mm, including any cap or plug. When using a 50 mm high cuvette, there will be a 4.8 mm clearance between the cuvette and the light shield cover. Additionally, the cover does not affect the compatibility of the cuvette holder with coaxial systems.