Lasing characteristics of corner-cube and axicon retro-reflector resonators at cryogenic and ambient temperatures

摘要

Corner-cube retro-reflectors (CCR) and axicon lenses with 90 degrees apex angle (AL) are optical elements with interesting reflective and polarization characteristics. One of their properties is that the collimated radiation incident on both elements (arbitrarily direction for CCRs and normal incident for AL) is reflected in the direction that is counter-parallel to the incident beam. Another common property of both elements is that the reflected beam has coherent properties, which could be used for passive intra-resonator coherent beam combining (CBC).