Our devices permit real-time sensing of gas, liquid and solid components for

• manufacturing processes,
• environmental surveillance,
• medical analyses

and many other fields of application.

We develop and manufacture high-end sensor systems optimized for demanding applications as well as optical and electronic components of sensor systems.

PSS provides dedicated sensor systems for specific measurement tasks of industrial customers. This addresses for example very challenging measurements in environments with high dust loads, in which calibrated measurements have to be carried out continuously.

Our systems include sensing lasers (e.g. distributed feedback lasers) matching exactly the wavelength range to be investigated, optics optimized for best signal to noise ratio, sensitive detectors, temperature stabilization and control for lasers, detectors (and if required as well for the sensor electronics), digital output interfaces etc.

The specifications of our sensing systems and system components reflect the needs of our customers. Based on more than 100 person years of experience with laser development and fabrication as well as with system design and production, we design, fabricate and test tailor-made devices and systems for you.

Depending on the wavelength range of interest, we will integrate sensors and/or lasers that are fabricated based on GaAs, InP or GaSb using different heterostructure designs (laser diodes, interband cascade or quantum cascade structures).

The tuning range required determines the device lay-out. For gas sensing applications, continuous tuning over wavelength ranges corresponding to about 5 nm is realized by distributed feedback lasers. Wide, discontinuous wavelength tunability appropriate for liquid and solid sensing applications is achieved by monolithic coupled cavity lasers.