Title:
TEMPERATURE CONTROLLER FOR OPTICAL ELEMENT AND LASER OSCILLATOR
Document Type and Number:
Japanese Patent JP3153486
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a small-sized temperature controller which can control the temperature of an optical element in a high-temperature region and has temperature controllability and temperature stability by controlling the temperature of a supporting body having a plurality of components welded to each other with a brazing material having a melting point of a specific temperature or higher and to obtain a laser oscillator having excellent output stability.
SOLUTION: The heat generated by a resistive heat generating wire 310 reaches an optical element 330 inserted into a through hole 343a after the heat is transferred to a supporting section 343 through a heat transferring section 341. The heat is further transferred to a Peltier element 320 through a heat transferring section 342. While the heat generated from the wire 310 reaches the Peltier element 320, a temperature gradient which is higher on the wire 310 side and lower on the element 320 side is generated in a holder 340, because the heat is radiated. Therefore, the safety of the Peltier element 320 itself can be secured even when the temperature of the optical element 330 exceeds 200°C, because the temperature of the element 320 can be maintained at a value lower than the melting point of the bond used in the element 320 by contriving the shape of the holder 340.
Inventors:
Tsunekane, Masaki
Application Number:
JP4097497A
Publication Date:
April 09, 2001
Filing Date:
February 25, 1997
Export Citation:
Assignee:
SEITAI HIKARI JOHO KENKYUSHO:KK
International Classes:
H01S3/02; G05D23/20; (IPC1-7): H01S3/02; G05D23/20
Attorney, Agent or Firm:
山田 正紀 （外１名）