发明名称 |
PHASE-CONJUGATION APPARATUS AND METHOD OF PHASE CONJUGATING LIGHT |
摘要 |
A phase-conjugation apparatus comprises a photo-refractive crystal and means for directing one beam Iin of light in a self-pumped configuration (or a plurality of beams of light in a mutually-pumped configuration) into the crystal so that a phase-conjugation process takes place and a phase-conjugated beam Ipc is returned along the same path as the input beam. In order to enable improvements to be made in the range of input beam positions and/or beam orientations, and/or being the time to reach stability, and/or overall stability, and/or the phase-conjugation efficiency, the input beam is incident on the crystal at an obtuse angle to the direction in which a beam of any orientation would ultimately tend to bend in the crystal, which in the case of a barium titanate crystal equates to the so-called +C direction.
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申请公布号 |
WO9630802(A1) |
申请公布日期 |
1996.10.03 |
申请号 |
WO1996GB00729 |
申请日期 |
1996.03.27 |
申请人 |
UNIVERSITY COLLEGE LONDON;SELVIAH, DAVID, RICHARD;CHANG, CHI, CHING |
发明人 |
SELVIAH, DAVID, RICHARD;CHANG, CHI, CHING |
分类号 |
G02F1/35;(IPC1-7):G02F1/35 |
主分类号 |
G02F1/35 |
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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