发明名称 |
MODE DISCRIMINATION APPARATUS |
摘要 |
In an optical system such as a ring laser gyroscope cavity, oscillations occur in many transverse modes. The desired modes are allowed to exist by suppressing undesired modes utilizing a light stop apparatus. One light stop is made by treating a dielectric mirror with an electron beam causing a phase change to occur to the undesired reflected waves. An alternative light stop is made by depositing an absorptive material on a dielectric mirror for absorbing some of the energy of the undesired modes. Both light stop embodiments are adjustable with respect to a laser wave in a resonant cavity. |
申请公布号 |
AU5703086(A) |
申请公布日期 |
1986.09.11 |
申请号 |
AU19860057030 |
申请日期 |
1986.04.30 |
申请人 |
RAYTHEON CO. |
发明人 |
MICHAEL S. PERLMUTTER;KENNETH H. BROWN |
分类号 |
H01S3/083;G01C19/64;G01C19/66;G01P3/36;H01S3/08;H01S3/098 |
主分类号 |
H01S3/083 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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