Improved Fiber Probe for Laser Tissue Ablation with Integrated Distributed Temperature Sensor

The paper presents a new all-fiber probe for laser induced thermal ablation of solid tumor cells that integrates a beam delivery fiber with nanostructured surface to shape the laser irradiation pattern and a chirped grating to allow real-time monitoring of the temperature pro file. A theoretical model of the sensor to study the temperature pro file recovery algorithm and experimental validations using phantoms are discussed.