1 / 8

Nuts and Bolts Difference Frequency Generation (DFG) Beam Time 7/15/14

Nuts and Bolts Difference Frequency Generation (DFG) Beam Time 7/15/14. Josh Nelson Derrek Wilson Carlos Trallero. Goals. Create DFG from signal and idler (OPA) Confirm that a beam from DFG is produced. OPA. Signal = 1000 – 1550 nm Idler = 1600 – 2500 nm

Download Presentation

Nuts and Bolts Difference Frequency Generation (DFG) Beam Time 7/15/14

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Nuts and BoltsDifference Frequency Generation (DFG)Beam Time 7/15/14 Josh Nelson Derrek Wilson Carlos Trallero

  2. Goals • Create DFG from signal and idler (OPA) • Confirm that a beam from DFG is produced

  3. OPA • Signal = 1000 – 1550 nm • Idler = 1600 – 2500 nm Conservation of Energy and momentum give out signal and idler signal Pump Beam OPA idler

  4. DFG Process DFG Signal Idler Conservation of Energy ωs – ωi = ωDFG Conservation of Momentum Ks – Ki = KDFG

  5. Setup for DFG AgGaS2 (silver thiogallate) Block S S KLS 2 mJ, 2 KHz, 30 fs OPA 0.5 mJ for S + I I 800 nm DFG crystal I Power Meter DFG Germanium Window

  6. Data Signal = 1470 nm Idler = 1750 nm 1/λs – 1/λi = 1/λDFG λDFG = 9200 nm Energy Split: S = 83% I = 17% Showed Phase Matching

  7. Data Signal = 1450 nm Idler = 1705 nm 1/λs – 1/ λi = 1/λDFG λDFG = 9700 nm Energy Split: S =66% I = 34% • Power after OPA = 1 W • Calcite aligned so that signal and idler lose overlap in time 10.5 mW 1.2 mW 1.0 mW

  8. Conclusion/Future • Effectively demonstrated DFG procedure • Found the wavelength of DFG in which gives us the largest power • Future: • Change setup to allow for better control over time overlap of signal and idler • Use setup on HITS

More Related