发明名称 |
Receiving system for free-space optical communications |
摘要 |
An optical receiving system includes a Fresnel lens optically coupled to a detector via a tapered concentrator. The Fresnel lens is adapted to receive an electromagnetic signal and has a Fresnel focal point. The tapered concentrator has a first end surface area larger than a second end surface area. The detector has a sensing surface area oriented to receive the electromagnetic signal emerging from the tapered concentrator. <IMAGE> |
申请公布号 |
EP1039325(A3) |
申请公布日期 |
2003.08.13 |
申请号 |
EP20000302052 |
申请日期 |
2000.03.14 |
申请人 |
LUCENT TECHNOLOGIES INC. |
发明人 |
NYKOLAK, GERALD;PRESBY, HERMAN MELVIN;SZAJOWSKI, PAUL F. |
分类号 |
H01L31/0232;H01L31/12;H01L33/00;H04B10/10;H04B10/105;H04B10/22 |
主分类号 |
H01L31/0232 |
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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