Applications

Chemical Sensing

Chalcogenide fibers are well suited for chemical sensing applications since most molecular species vibrate in the infrared region.  The chalcogenide fibers can be used in fiber optic chemical sensor systems for quantitative remote detection and identification.  Examples of different sensing techniques include Quantum Cascade Laser (QCL) based molecular detection and imaging system, evanescent/ATR (attenuated total reflectance), diffuse reflectance and absorption spectroscopy.  The diffuse reflectance and evanescent/ATR techniques are useful for samples that scatter or are opaque at the mid

Biological and Chemical Agent Detection

The mid-infrared (2-10 µm) is the fingerprint region for most molecular species.  The development of mid-infrared fiber-optic lasers and broadband sources enable the development of chemical sensors for molecular spectroscopy, chemical process monitoring, and remote detection of chemical and biological agents.

Nonlinear Applications

Optical fibers made from chalcogenide glass exhibit large optical nonlinearities, which can be as large as 100 to 1000 times that of silica glass.  The high nonlinearities allow efficient supercontinuum generation enabling creation of broadband sources that can cover the near to mid-IR spectrum, efficient wavelength conversion through four-wave mixing, and creation fiber lasers and amplifiers in the mid-IR using their large Raman coefficient.  Using this phenomenon opens up the potential for compact and integrated all optical switches in civil, medical and military application.  These appl

Laser Surgery and Medical Diagnostics

The development of novel fiber laser sources in the mid-infrared wavelengths (2-10 µm) is very important for biomedical applications. The mid-infrared absorption spectra are significantly different for different biological fluids, soft tissues and hard tissues.  The proper mid-infrared wavelength selection for a particular laser surgery will optimize the surgery performance and eliminate collateral damages.

Directed Infrared Countermeasure (IRCM)

Infrared countermeasure (IRCM) systems defend the host aircraft from heat-seeking attacking missiles by detecting the approaching threat and disabling it through the use of directed laser energy.  IRflex is strategically positioned to develop and produce mid-infrared (2-10 µm) devices to support such critical military applications.  Our mid-infrared products range from laser beam delivery systems and fiber-optic switchs to fiber lasers and broadband sources.