发明名称 |
Continuously variable fiber optic attenuator |
摘要 |
A continuously variable fiber optic attenuator which can be constructed in a size amenable to direct mounting on optical data application apparatus is presented. The attenuator utilizes a flexible filter of varying optical density which is oriented in an optical coupling region between two optical fibers. The filter can be displaced in a manner to vary the filter density in the optical coupling region and thereby vary the attenuation across the device. A resistor coupled to the attenuator provides means for calibration of the attenuator to provide a highly accurate and reproducible attenuation.
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申请公布号 |
US4989938(A) |
申请公布日期 |
1991.02.05 |
申请号 |
US19900476743 |
申请日期 |
1990.02.07 |
申请人 |
LIGHT CONTROL SYSTEMS, INC. |
发明人 |
TAMULEVICH, THOMAS W. |
分类号 |
G02B6/26 |
主分类号 |
G02B6/26 |
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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