发明名称 |
A METHOD FOR THE MANUFACTURE OF A WAVEGUIDE MIXER |
摘要 |
A method is presented for writing a permanent spatially periodic phase-matching second-order non-linearity grating in an optical waveguide. Single frequency exciting radiation is launched in a pair of guided modes of the waveguide in the presence of an external DC electric field applied in a direction transverse to the waveguide. The exciting radiation may be either co-propagating or counter-propagating. The above method may be refined by performing it once for an estimated value of exciting radiation frequency, testing the waveguide to determine error in the chosen estimate, erasing the grating and re-performing the method using a corrected value for the frequency of the exciting radiation. |
申请公布号 |
WO9008973(A1) |
申请公布日期 |
1990.08.09 |
申请号 |
WO1990GB00136 |
申请日期 |
1990.01.31 |
申请人 |
PLESSEY OVERSEAS LIMITED |
发明人 |
FARRIES, MARK;LI, LUKSUN;FERMANN, MARTIN,;PAYNE, DAVID |
分类号 |
G02F1/37;G02F1/383 |
主分类号 |
G02F1/37 |
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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