Optoenergy developed a narrow band, extremely low noise external cavity laser module. The center wavelength and the bandwidth are determined by the choice of the FBG. You can specify the wavelength arbitrarily ranging from 920nm to 1070nm. This laser module realizes very narrow spectrum width and a mode hop free operation, which is suitable for SHG applications. If a customer wants to use their own wavelength locker, we can provide the diode only. A variety of wavelength locker, like gratings, FBGs and VBGs/VHG can be applicable.