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SAF Gain Chips, 1650 nm Center Wavelength![]()
Actual Size Compared SAF1091C Chip on Submount SAF1091H Chip on Submount ![]() Please Wait
Features
Single Angled Facet (SAF) gain chips use a geometric technique to further reduce the reflection on one end of the chip by curving the ridge waveguide so that it is not normally incident to the chip facet. This, in combination with an AR coating on that facet, virtually eliminates back reflections that can create unwanted feedback into the laser cavity. As a result, SAF gain chips are superior to standard gain chips when used in Extended Cavity Lasers (ECLs), praticularly tunable ECLs, since any residual reflection from the AR-coated Fabry-Perot (FP) gain chip facet often limits the stability, output power, and spectral quality of the laser. Our 1650 nm SAF gain chip is available in two configurations. The SAF1091C chip is offered on a submount, while the SAF1091H is provided on the same submount with a heatsink and connected cathode and anode leads. Sample Results of an SAF1091 Used in a Basic Littrow Configuration
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