Answer Happy

Posted: **Thu May 26, 2022 10:55 am**

: We Are Interested In Engineering Efficient Degenerate Four Wave Mixing 2wp Ws Wi In Glass Where The Subscripts P S 1 (20.69 KiB) Viewed 23 times

We are interested in engineering efficient degenerate four wave mixing (2wp = ws+wi) in glass, where the subscripts p,s and i refer to the pump, signal and idler respectively. Based on this figure, at what wavelength should we chose our pump wavelengths to maximize our conversion efficiency: O 1.7 μm O 1.55 μm O 0.8 μm O 1.3 μm
The group time delay dispersion of glass is indicated in the figure below: Click here for image wavelength (microns) 1.2 1 0.8 0 -200 -400 -600- -800 GTDD (ps/nm/km) 1.6 phase group -1.96 -1.94 - 1.92 - 1.90 phase/group velocity (x108 m/s)