File:UndopedCap.jpg

Uncovered active mirror (disk laser) compared to that with undoped cap. The undoped layer prevents the internal reflection from the active medium and allows to make the disk wider, with corresponding increase of maximal power .

Copyleft 2008 by Dmitrii Kouznetsov. The free use is allowed, attribute http://www.ils.uec.ac.jp/~dima/PAPERS/2007josacap.pdf or http://tori.ils.uec.ac.jp/PAPERS/2007josacap.pdf

This file is available also as http://commons.wikimedia.org/wiki/File:UndopedCapFig1.gif

The previous version ot this file looked ugly; so, this is second attempt.