Category: Science & Nature, Health Services, Technology

Material Science of Precision Cleaving: Preventing Fiber Burn-Back in High-Power Surgical Laser Operations

During contact laser ablation of hyperplastic prostate tissue or bladder tumors, the distal end of the bare silica fiber is subjected to extreme thermal environments, often exceeding 800°C. This heat causes organic debris to adhere to the tip, leading to rapid degradation.

If a fiber's tip is poorly prepared or unevenly cut before starting, these surface defects act as focal points for thermal absorption. The fiber tip can quickly melt or "burn back," disrupting energy delivery and requiring the team to stop the surgery to prepare a new tip.

Preventing early burn-back is crucial for maintaining consistent energy output. Achieving this relies on using a high-precision Fiber Cleaver to create an exceptionally flat, defect-free termination surface.