Patent ID: 9585570
Date: 2017-03-07
CPC Classifications: A61B,H01S

Claim:
1. A laser apparatus, comprising: a laser medium; temperature controlling means configured to control a temperature of said laser medium, and including a circulator circulating a substance near said laser medium to heat the laser medium, and heating means heating said substance circulating within said circulator; excitation means configured to excite said laser medium; control means configured to control said temperature controlling means and said excitation means; first temperature measuring means configured to measure the temperature of said laser medium; and second temperature measuring means configured to measure a temperature of said substance circulating within said circulator, wherein said control means does not activate said excitation means until the temperature of said substance circulating within said circulator, measured by said second temperature measuring means, reaches a first value, and activates said heating means until the temperature of said laser medium, measured by said first temperature measuring means, reaches a second value different from said first value, wherein a current to flow to said heating means after the temperature of said substance circulating within said circulator, measured by said second temperature measuring means, reaches the first value and until the temperature of said laser medium, measured by said first temperature measuring means, reaches the second value, is smaller than a current to flow to said heating means until the temperature of said substance circulating within said circulator, measured by said second temperature measuring means, reaches the first value.