| 摘要 |
<p>A thermally conducting reflecting envelope (11) for use in laser cavities, and laser apparatus (10) employing such envelopes (11). A transparent heat conducting member (17), such as sapphire, surrounds a laser medium (12) and has a transmissive coating (13) thereon that transmits pump light provided by a pump light source (20) onto the laser medium (12). The coating (13) reflects the diode pump light and transmits laser light to suppress ASE that causes clamping of the laser output at a relatively low level. An absorbing elastic material (15) is disposed on the dielectric coating (13) and is adapted to absorb the laser light. Heat sinks (16) are disposed in contact with the absorbing elastic material (15), and conducts heat away from the laser medium (12). A light entrance window (13a) or area is antireflection coated to transmit the pump light onto the laser medium (12). A liquid cooled version further includes a liquid cooling channel (18) disposed between the laser medium (12) and the thermally conducting member (17). The present invention provides more efficient cooling and a more effective ASE suppression than conventional Samarium glass filters in solid state lasers pumped by flashlamps or laser diodes. The present invention provides for efficient heat conduction and removal from a laser medium, efficient transmission and absorption of laser light to suppress ASE, and efficient transmission of pump light to the laser medium. <IMAGE></p> |
