Title :
Angular speckle correlations and speckle removal in multimode fiber laser delivery
Author :
Moon, J.A. ; Busse, Lynda E. ; Aggarwal, I.D.
Author_Institution :
Div. of Opt. Sci., Naval Res. Lab., Washington, DC, USA
Abstract :
Summary form only given. Laser beam delivery via relatively short lengths of multimode fiber is common in remote sensing, imaging, surgery, and plasma physics. If the bandwidth of the laser in use is narrower than the coherence bandwidth of the fiber, a speckle pattern will emerge from the end of the fiber. We describe here the long-range correlations between these speckle spots, and a method to remove this speckle by modulating the launch angle into the fiber in time.
Keywords :
fibre lasers; optical correlation; speckle; angular speckle correlations; launch angle modulation; multimode fiber laser delivery; speckle removal; Bandwidth; Fiber lasers; Laser beams; Laser surgery; Laser theory; Particle beams; Physics; Plasmas; Remote sensing; Speckle;
Conference_Titel :
Lasers and Electro-Optics, 1996. CLEO '96., Summaries of papers presented at the Conference on
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
1-55752-443-2
