| Autor: |
SINGH, RAVINDRA, CHOUBEY, AMBAR, JAIN, R, VISHWAKARMA, S, AGRAWAL, D, ALI, SABIR, UPADHYAYA, B, OAK, S |
| Předmět: |
|
| Zdroj: |
Pramana: Journal of Physics; Feb2014, Vol. 82 Issue 2, p211-216, 6p |
| Abstrakt: |
Most of today's industrial Nd:YAG lasers use fibre-optic beam delivery. In such lasers, fibre core diameter is an important consideration in deploying a beam delivery system. Using a smaller core diameter fibre allows higher irradiances at focus position, less degradation of beam quality, and a larger stand-off distance. In this work, we have put efforts to efficiently deliver the laser output of 'ceramic reflector'-based long pulse Nd:YAG laser through a 200 μm core diameter optical fibre and successfully delivered up to 60 J of pulse energy with 90% transmission efficiency, using a GRADIUM (axial gradient) plano-convex lens to sharply focus down the beam on the end face of the optical fibre and fibre end faces have been cleaved to achieve higher surface damage thresholds. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
