TY - JOUR
AU - Ohodnicki, Paul
AB - A new Laser Heated Pedestal Growth system was designed and fabricated using various aspects of effective legacy designs for the growth of single-crystal high-temperature-compatible optical fibers. The system is heated by a 100-watt, DC driven, CO2 laser with PID power control. Fiber diameter measurements are performed using a telecentric video system which identifies the molten zone and utilizes edge detection algorithms to report fiber-diameter. Beam shaping components include a beam telescope; along with gold-coated reflaxicon, turning, and parabolic focusing mirrors consistent with similar previous systems. The optical system permits melting of sapphire-feedstock up to 1.5mm in diameter for growth. Details regarding operational characteristics are reviewed and properties of single-crystal sapphire fibers produced by the system are evaluated. Aspects of the control algorithm efficacy will be discussed, along with relevant alternatives. Finally, some new techniques for in-situ processing making use of the laser-heating system are discussed. Ex-situ fiber modification and processing are also examined for improvements in fiber properties.
TI - Laser heated pedestal growth system commissioning and fiber processing
JO - Proceedings of SPIE
DO - 10.1117/12.2224480
DA - 2016-05-12
UR - https://www.deepdyve.com/lp/spie/laser-heated-pedestal-growth-system-commissioning-and-fiber-processing-g5Xjl950C4
SP - 985219
EP - 985219-9
VL - 9852
IS - 
DP - DeepDyve
ER -