AFOSR Indo-UK -US Joint Physics Initiative for Study of Angular Optical Mode Fiber Amplification
Abstract
During the above reporting period, the PI investigated the use of vortex beams to mitigate thermal mode instability in high energy fiber amplifiers. The investigation was carried out through: (1) the development of a comprehensive model to study and mitigate the onset of thermal mode instability in large mode area fiber amplifiers, and (2) the development of a testbed at IIT Madras to experimentally validate the above results as well as to explore the generation of vortex modes through a spiral phase plate and novel all-fiber fused coupler. Such work has laid the platform to demonstrate the mitigation of thermal mode instability through vortex beam amplification in high energy fiber amplifiers.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 20, 2017
- Accession Number
- AD1028111
Entities
People
- David N. Payne
- Jayanta K. Sahu
- Johan Nilsson
Organizations
- University of Southampton