surgeon with improved control of interruptions during surgery it may be possible to carry out the surgery at lower power thereby possibly reducing pain felt by the patient this can be accomplished by switching to silica clad fiber which will not burn back and by keeping the power density consistent this feature of the invention is the result of the inventor 39 s research into the thermal consequences of using plastic clad fibers in particular the inventor has found that in applications where the fiber tip is buried in tissue the plastic clad can quickly burn off exposing the silica core allowing contamination on sides to steal energy the inventor has measured the power drop off as much 50 within first few seconds of laser activation into tissue furthermore if the fiber is buried in tissue and fiber tip with coatings burned back there is a probability the tip could break off when this occurs the buffer which now burns back but much slower keeps temperature higher and readily imitates fea as a result it may be preferred to switch back to a silca clad fiber which will not burn back and keep the power density consistent as such a given procedure could be performed at about half the power making the procedure safer and less painful for the patient fea could still occur but at a much lower occurrence many surgical diode lasers put out as much 60 100 watts but there are many cases where only 15 watts or less is required considering the concept of using.