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专利名称：Optical system having stable resonator发明人：WADA HIROYUKI,MASUDA HISASHI,KONDO
KENJI,OKA MICHIO,KANEDA YUUSHI
申请号：US16210598申请日：19980928公开号：US6181461B1公开日：20010130
摘要：In an optical system having at least one optical part other than mirrors, forexample, a wavelength conversion optical system which uses an external resonator, anoptical system which is capable of solving the problem of transverse mode generationdue to the existence of scattering matter and the optical crystal used and capable ofsupplying a stable output (stable wavelength conversion output) is provided. At least atone point in a stable resonator having optical parts (optical crystal) other than mirrors, anaperture having a circular hole with a diameter 1 to 10 times the diameter of a beam atthe aperture, a slit having a width 1 to 10 times the diameter of the beam, or an apertureof an arbitrary shape having an edge is located, or a knife edge having an linear or curvededge is Located so that the nearest distance between the edge and the beam is 1 to 10times the radius of the beam from the center of the beam.
申请人：SONY CORPORATION
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