News — high power fiber optics
From Abe to MoXy™ and Beyond; Part 2 -- Abe's Side Fire Solution(s)
BPH Duotome GreenLight high power fiber optics Holmium Fiber Holmium Laser holmium laser fiber laser fiber MoXy OmniPulse Photoselective Photoselectivity SideLite thulium laser thulium laser fiber
Part 1 of this series was mostly a review of Snell's law and Fresnel reflections as they explain the weird output of bevel polished fibers. Here we see some more Snell and Fresnel issues and the earliest Band-Aid® treatments designed to mitigate these issues. Part 2: Abe's Solution(s) Before we get into what Abe saw as solutions to the issues outlined, we should probably address the problem that I alluded to in Part 1: the disappointing results of polishing a fiber at the calculated TIR angle for lateral redirection of the output. In so doing, you’ll more fully understand why...
How to Cleave Surgical Fibers
AccuFlex Accumax AccuTrac ACMI laser fiber calculase chips Clean cut cutting fiber dornier EndoBeam Fiber Flexiva glass fragments high power fiber optics Holmium Fiber Holmium Laser holmium laser fiber karl storz laser fiber Laser Lithotripsy Lasersafe litho laser Lumenis medilase medilase H20 OmniPulse Optifiber ProFlex LLF ProGlide ProGuard quanta laser reprocessing laser fiber scope safe Scopesafe Slimline stonelight SureFlex TracTip Trimedyne yellowstone
How to Cleave Laser Surgical Fibers Purpose: Provide simple instructions for reprocessing flat tip bare fibers for laser surgery. Summary: Clean cut and flat optical faces are necessary for surgical efficacy in laser surgery. Badly cut fibers deliver energy to target tissue less efficiently and degrade more quickly than properly cut fibers. Step-by-step instructions…. Rationale: A.A. Griffith developed the first theoretical model for fractures during WWI, inaugurating the Science of Fracture Mechanics. As luck would have it, Griffith studied glass fibers. Telecommunications fibers are made of fused silica -- just like laser surgical fibers -- and more telecom fibers are...
What are Holmium Laser Fiber Sizes, Really?
AccuFlex Accumax AccuTrac ACMI laser fiber calculase dornier Duotome EndoBeam Fiber Flexiva fused silica high power fiber optics Holmium Fiber Holmium Laser holmium laser fiber karl storz laser fiber Laser Lithotripsy Lasersafe litho laser Lumenis medilase medilase H20 microlenses OmniPulse optical fiber Optifiber ProFlex ProFlex LLF ProGlide ProGuard richard wolf scope safe Scopesafe Slimline stonelight SureFlex tapered fibers Thulium thulium laser thulium laser fiber TracTip Trimedyne yellowstone
Section 502 of the Federal Food, Drug and Cosmetic Act (FFDCA) says that a device is misbranded if its labeling is false or misleading in any particular. Maybe the FDA doesn’t read Urology? I’m referring to a paper that appeared in the journal Urology a couple of years ago*, questioning the veracity of holmium laser fiber manufacturers in describing the diameters of their fiber devices. The conclusion was that nobody told the truth. That would actually be a good case against holmium fibers being misbranded, in that, if all fibers are uniformly mislabeled, it is not misleading. While the cynic in me appreciates that...
The Power of Collimation IV: Going the Extra Mile
2100nm AccuFlex Accumax AccuTrac ACMI laser fiber calculase dornier Duotome EndoBeam Fiber Flexiva high power fiber optics Holmium Fiber Holmium Laser holmium laser fiber karl storz Laser laser fiber Laser Lithotripsy Lasersafe litho laser Lumenis medilase medilase H20 microlenses OmniPulse optical fiber Optifiber ProFlex ProFlex LLF ProGlide ProGuard quanta laser richard wolf scope safe Scopesafe Slimline stonelight SureFlex Thulium thulium laser thulium laser fiber TracTip Trimedyne yellowstone
This final Chapter in the blog series, "The Power of Collimation", explores the apparent paradox that ProFlex is able to reject potentially damaging, high angle laser energy within the focus while continuing to deliver more laser energy to the stone than any other holmium laser fiber.
The Power of Collimation III: Moses’ Enthalpy
2100nm AccuFlex Accumax AccuTrac ACMI laser fiber calculase dornier EndoBeam Fiber Flexiva fused silica high power fiber optics Holmium Fiber Holmium Laser holmium laser fiber karl storz Laser laser fiber Laser Lithotripsy Lasersafe litho laser Lumenis medilase medilase H20 microlenses optical fiber Optifiber ProFlex ProFlex LLF ProGlide ProGuard quanta laser richard wolf scope safe Scopesafe SideLite Slimline stonelight SureFlex tapered fibers TracTip Trimedyne yellowstone
At InnovaQuartz, we developed a method of making very precise, tiny lenses directly upon the face of an optical fiber. In this third Chapter of The Power of Collimation, I’ll describe just how important this subtle feature really is to the performance of holmium laser URS. In the first Chapter of this blog series, I discussed why holmium lasers launch light into fibers at a substantial fraction of their maximum propagation angle (near maximum NA). We’ll be using computer-generated ray traces to depict what happens with a typical laser focus condition (aka laser launch condition) when coupling to a series of...