Solid state laser apparatus having saturable absorber for suppressing amplified spontaneous emission

摘要

The present invention relates to a solid laser device having a saturated absorber for suppressing natural amplification emission. According to the present invention, to store the pumping energy supplied by the pumping source, the first amplification medium to amplify and transmit the laser input from the outside, and to store the pumping energy supplied by the pumping source, the first amplification medium The second amplification medium is spaced apart from one side of the second amplification medium to re-amplify and transmit the laser flowed from the first amplification medium, and to suppress natural amplification emission components generated in the first and second amplification mediums. It is installed spaced on one side of the medium, and includes a saturated absorber that transmits the laser introduced from the second amplification medium, and a reflective mirror that is spaced apart on one side of the saturated absorber and reflects the laser introduced from the saturated absorber again, The reflected laser, while sequentially transmitting through the saturated absorber, the second amplification medium, and the first amplification medium Provided is a solid laser device that is re-amplified and output to the outside. According to the present invention, the natural amplified emission component generated in the amplification medium can be effectively suppressed by using the saturated absorber added between the amplification medium and the reflection mirror, and through this, the maximum energy capacity of the pumping energy that can be stored in the amplification medium As a result, the output power of the laser can be improved.