Optical Parametric Oscillators
Chromacity is a leading manufacturer of high-performance optical parametric oscillators for scientific and industrial communities worldwide.
What is an Optical Parametric Oscillator?
An optical parametric oscillator (OPO) is a coherent light source that makes use of a parametric amplification process to generate light, over a wide range of wavelengths. Optical parametric oscillators consist of a nonlinear crystal, placed inside a cavity, which is pumped by a fixed wavelength laser. The OPO technology generates light across optical frequencies within the mid-IR spectrum, which conventional lasers cannot easily access.
Due to their tunable wavelength coverage, optical parametric oscillators have been used across a range of test and measurement, materials characterisation and spectroscopy applications. These techniques help to determine failure analysis within the semiconductor industry and detect gas emissions from asset intensive industries.
Within industrial sensing, OPOs can be integrated with interferometers (and other detector technology) to establish a high brightness detection system, capable of identifying and quantifying hydrocarbons in the atmosphere simultaneously. Demonstrating these capabilities, Chromacity collaborated with Heriot-Watt University to conduct research into multi-species gas analysis using FTIR spectroscopy and stand-off detection techniques.
Within the molecular fingerprint region, typically wavelengths between 5 – 15 µm, more complex chemical compounds can be detected. Using a nonlinear orientation patterned gallium phosphide crystal (known as OPGaP), Chromacity’s picosecond optical parametric oscillator can be extended to generate light up to 12 µm, to detect chemical signatures (in solid or liquid state). These chemical signatures can be harmful to people and contaminate surfaces during assembly line production.
Chromacity manufacture a new generation of tunable ultrashort-pulse lasers by leveraging the technical expertise and capabilities of their R&D team. Patented protected IP has captured innovation within Chromacity’s manufacturing processes, and this has been vital to the design and build of high performance and competitively priced OPOs which are more efficient, stable and simple to use when compared with substitute technologies operating at similar wavelengths.