09 Apr 2009 Ondax, a leading manufacturer of Volume Holographic Gratings (VHG's), PowerLockers™. The PowerLocker™ VHG is a volume holographic grating which diffracts a defined efficiency at a specific wavelength. The gratings increase spectral brightness of laser diodes, locking wavelength and increasing temperature stability and yield. Available in wavelengths from 350nm to 3microns. VHG’s with apertures up to 30mm x 30mm and thicknesses from 150 microns to 40mm and hence linewidths from 0.5nm to 0.001nm. Efficiencies from 5% to >99%.
http://www.ondaxinc.com/laserlocking.htm | 
