Fiber-optic spectrometers offer a tremendous value proposition for UV/VIS measurements because of their relatively low cost, small size and ability to be introduced in harsh environments through the fiber interface. Combined with a optical fiber transmission dip probe, inline flow cells or the more traditional cuvette cell, single optical fiber spectrometer can accurately and repeatably measure over the range from 200-1100 nm.

Small optical equitment Come to Age:

Scientists who are largely familiar with more traditional bench top spectrophotometers may have the perception that fiber optic instrumentations cannot provide the resolution or stray-light rejection required for more demanding applications. In fact, fiber spectrometer technology has come a long way and Optosky’s instruments are on the leading edge for this technology. Our optical instruments are capable of measuring at resolutions as high as 0.05 nm in the UV. In terms of stray-light rejection, Optosky has developed a special optical bench called the ultra-low optical bench to provide optimal performance for our customers. ATP series modular spectrometers have stray-light levels as low as 0.04%.

Typically UV/VIS absorbance systems consist of a spectrometer, stabilized light source and fiber-optics, which are connected to some form of sampling accessory (probe or cuvette cell). Single fiber-optic spectrometers can be configured for broadband measurements (200-1100 nm) or narrow band (any range from 200-1100 nm) depending upon the desired wavelength range and resolution. Optosky UV/VIS instruments are also fully compatible with our modular spectrometers, which enable spectroscopic measurements out to 2500 nm.

Common System Configurations:

Optosky modular spectrometer enables users to configure systems in a variety of ways and also allows the flexibility of changing the system configuration later to provide additional functionality. The typical UV/VIS absorbance system consists of an optosky's spectrometer, fiber-optic light source, fiber cables and a cuvette cell holder. To the left this system configuration is shown with a cuvette cell holder above with a dip probe configuration below.


One of the key value propositions to fiber-optic instruments is the ease with which measurements can be made inline or in-process using a fiber-optic probe or accessory. Otosky offers a variety of sizes and configurations of fiber-optic transmission dip probes, which include special configurations for measurements in high temperatures (up to 500 °C), high pressure or vacuum. Also available are fiber-optic flow cells for standard and micro-fluidic applications.

Instrument Control Software:

Optosky proprietary Android software is a Windows-based 32- and 64-bit compatible software package which enables full instrument control and includes a basic chemometry add-on module. For customers requiring more sophisticated analytical software, which enables model development and multi-variate analysis, Optosky instruments are fully compatible with Panorama-Pro software from LabCognition.

Optosky has developed a bundle especially designed for UV/VIS/NIR absorbance. This versatile bundle is able to measure absorbance in most situations.