Date post: | 03-Jan-2016 |
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Diana Chin1, Peter Taylor1,2, YenTing Chiu1, and Claire Gmachl11 Princeton University, Princeton, NJ 08544, USA
2 Permanent Address: DeSales University, Center Valley, PA 18034, USA
Background/ MotivationA more refined laser beam is necessary for the QC
laser to be effective in gas detection applications.
Part I: Imaging the far-field pattern of the original laser beam
Part II: Coupling the light into fibers and comparing the resulting intensity profiles
Imaging the Far-field PatternMCT detector vs FLIR (Forward Looking InfraRed)
Camera
Inte
nsity
Angle (degrees)
Conclusion
• Based on the close resemblance of the resulting far-field pattern to a Gaussian profile, the single mode fiber was successful in refining the QC laser beam by filtering out the majority of its higher order modes.
• Further experiments are necessary to determine if better alignment and coupling of the laser will yield an intensity distribution even closer to a true Gaussian.
• Holds great potential for future environmental applications, particularly in the detection of atmospheric gases.