Abstract
We report the results of a systematic characterization of various optical fiber pumping schemes for difference-frequency sources employing periodically poled LiNbO3. Theoretical and practical considerations to achieve performance improvements for ultra-sensitive trace gas detection applications are discussed. As a result, we report a new mechanically robust and miniaturized mixing module employing a hybrid fiber with a plano-convex lens, reducing the size of previous DFG configurations by 65%. We also show pump, signal, and idler beam cross-sections before and after passing through a 100-m effective pathlength astigmatic Herriott multi-pass cell.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
