A Kagome fiber-based, high energy delivery laser scalpel system for ultrafast laser microsurgery

Kaushik Subramanian; Ilan Gabay; Adam Shadfan; Michal Pawlowski; Ye Wang; Tomasz Tkaczyk; Adela Ben-Yakar

doi:10.1117/12.2253446

22 February 2017 A Kagome fiber-based, high energy delivery laser scalpel system for ultrafast laser microsurgery

Kaushik Subramanian, Ilan Gabay, Adam Shadfan, Michal Pawlowski, Ye Wang, Tomasz Tkaczyk, Adela Ben-Yakar

Proceedings Volume 10066, Energy-based Treatment of Tissue and Assessment IX; 100660U (2017) https://doi.org/10.1117/12.2253446
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

We present the development of a 5 mm, piezo-actuated, ultrafast laser scalpel for microsurgery with a capability to deliver energies in excess of 1 μJ per pulse. Having previously established that the maximum energy deliverable was limited by cladding damage in photonic badgap fibers, we utilized a large, 35μm cored inhibited-coupling Kagome fiber that allowed the delivery of micro-Joule energy femtosecond pulses. To maintain diffraction limited performance over the entire scan range of the piezo-actuated fiber tip, special objective lenses were developed and manufactured out of a high-refractive index Zinc Sulfide (ZnS) crystal. The probe was packaged in hypodermic 304SS stainless steel with a form factor minimizing in-line configuration. The probe’s performance was tested via metal and tissue ablation studies, characterizing highspeed ablation parameters and uniformity of ablation over the scan area. Additionally, we studied the nonlinear performance of ZnS and Calcium Fluoride (CaF₂) as materials for refractive optics and determined the maximum energy deliverable through our probe using these optical materials. The high energy delivery through the probe system should allow for fast and effective tissue ablation.

Citation Download Citation

Kaushik Subramanian, Ilan Gabay, Adam Shadfan, Michal Pawlowski, Ye Wang, Tomasz Tkaczyk, and Adela Ben-Yakar "A Kagome fiber-based, high energy delivery laser scalpel system for ultrafast laser microsurgery", Proc. SPIE 10066, Energy-based Treatment of Tissue and Assessment IX, 100660U (22 February 2017); https://doi.org/10.1117/12.2253446

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available