<p>A ceramic pump cavity structure for use in solid state lasers wherein the pump cavity comprises sintered alumina having grain sizes of between about 0.3 to 0.5 microns. Sintered alumina pump cavities having grain sizes within this range provide desirable diffuse reflectivity comparable to barium sulfate while at the same time providing a structurally strong cavity which is resistant to cracking and breakage. Combinations of the alumina pump cavity with parasitic light absorbers such as samarium oxide are also disclosed.</p>
申请公布号
EP0324028(B1)
申请公布日期
1992.03.25
申请号
EP19880908439
申请日期
1988.06.06
申请人
HUGHES AIRCRAFT COMPANY
发明人
GIBSON, JAMES, O.;GEARHART, VICTOR, C.;BIRRELL, STEVEN, E.;HAWRYLOW, GABRIELE, M.