发明名称 |
Monolithically integrated signal processing circuit having active and passive components |
摘要 |
An optical signal processor is implemented as a monolithically integrated semiconductor structure having optical waveguide devices forming beam splitters, optical amplifiers and optical phase shifters. The monolithic structure photonically controls a phased-array microwave antenna. Phase-locked master and slave lasers generate orthogonal light beams having a difference frequency that corresponds to the microwave carrier frequency of the phased-array antenna. The lasers feed the signal processor, which performs beam splitting, optical amplifying and phase shifting functions. A polarizer and an array of diode detectors convert optical output signals from the signal processor into microwave signals that feed the phased-array antenna. The optical waveguides of the signal processor are fabricated in a single selective epitaxial growth step on a semiconductor substrate.
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申请公布号 |
US5930031(A) |
申请公布日期 |
1999.07.27 |
申请号 |
US19980061358 |
申请日期 |
1998.04.08 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY |
发明人 |
ZHOU, WEIMIN;SHEN, PAUL H.;DUTTA, MITRA;PAMULAPATI, JAGADEESH |
分类号 |
G02B6/12;H01Q3/26;(IPC1-7):G02B6/12;H01S3/18;H01L21/70 |
主分类号 |
G02B6/12 |
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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