发明名称 |
RF combiner based on cascaded optical phase modulation |
摘要 |
An RF combiner (10) that combines a plurality of RF signals (12) in the optical domain. The combiner (10) includes a single optical source (14) that generates an optical beam (16). The optical beam (16) is directed through a series of optical modulators (20), such as optical phase modulators. Each modulator (20) is responsive to an RF signal (12) that is to be combined with the other RF signals (12). Each modulator (20) modulates the optical signal (16) with the RF signal (12) so that the modulations combine in an additive manner. A single optical phase demodulator (32) is used to demodulate the composite phase modulated optical beam (16) to generate the combined RF signal (34). Suitable delay devices (50) can be used between the optical modulators (20), or the RF signals can be matched so that the RF signals combine in phase.
|
申请公布号 |
US2002186445(A1) |
申请公布日期 |
2002.12.12 |
申请号 |
US20010876017 |
申请日期 |
2001.06.06 |
申请人 |
LEIGHT JAMES E.;ROLLINS DAVID L.;FIELDS RICHARD A. |
发明人 |
LEIGHT JAMES E.;ROLLINS DAVID L.;FIELDS RICHARD A. |
分类号 |
G02F1/025;G02F1/03;H04B10/12;(IPC1-7):G02F1/03;G02F1/07;G02F1/01 |
主分类号 |
G02F1/025 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|