Volume Holographic Gratings (VHGs) are  specialized optical filters that are fabricated from proprietary photosensitive glass, and are used in a variety of photonics applications.  Whether it be for stabilizing the wavelength of diode lasers, providing spectral or temporal control for lasers and laser-based systems, or enhancing optical performance and resolution of spectroscopy systems, Ondax VHGs and VHG-based products enable our customers to make their lasers and optical systems smaller, more portable, more efficient, more affordable, and more environmentally stable and robust.

Low Frequency Raman Spectrum of Carbamazepine

Low Frequency Raman Spectrum of Carbamazepine

Materials Analysis and Chemical Detection with THz-Raman®
Low-Frequency Raman Spectroscopy

Ondax’s patented SureBlock™ XLF Series THz-Raman® Systems enable fast, clear capture of Raman spectra in the Low-Frequency (Low Wavenumber)/THz regime (~5 cm-1 to 200 cm-1, or 150 GHz to 6 THz), including complete anti-Stokes spectra. Read more....

PowerLocker Laser Stabilization
Laser Wavelength Stabilization with PowerLocker®

PowerLocker® wavelength stabilization gratings are designed to reflect a specified wavelength at a given reflectivity, locking the emission wavelength, increasing spectral brightness, and improving environmental performance of laser diodes.. Read more....

Chirped Pulse Compression
Ultrafast Laser Pulse Stretching and Compression with PicoPulse™

PicoPulse™ pulse stretcher/compressor filters enable high peak power in femtosecond pulsed laser systems, with a distortion free round output beam. Read more....