发明名称 |
Optinen kytkin sekä lähetin ja vastaanotin tällaisen kytkimen sisältävää monikanavaista siirtojärjestelmää varten |
摘要 |
The invention relates to an optical switch (1) which is switchable by means of light. The switch (1) comprises an optical wave-guiding structure (3) having an entrance (5) to which a signal can be applied and an exit (7). The refractive index of the wave-guiding structure (30) is variable by means of light intensity. The switch (1) further comprises a radiation source unit (15) whose radiation can be injected into the wave-guiding structure (3). The radiation source unit (15) comprises a pulsed laser (17) having a repetition time T and a pulse duration p and a medium (19) for transporting the radiation supplied by the laser (17). The radiation source unit (15) is provided with setting means (21 ) for stabilizing the wavelength of the laser (17) at a number n of selected wavelength bands from a number N of possibly selectable wavelength bands within one and the same pulse supplied by the laser (17). Moreover, the medium (19) is dispersive at a wavelength-dependent travel time tD in which the wavelength bands upon transport are separable in time as a result of dispersion. |
申请公布号 |
FI955976(A) |
申请公布日期 |
1995.12.13 |
申请号 |
FI19950005976 |
申请日期 |
1995.12.13 |
申请人 |
PHILIPS ELECTRONICS N.V. |
发明人 |
LIEDENBAUM, COEN THEODORUS HUBERTUS FRANCISCUS;REID, JOHN JAMES ELLIS |
分类号 |
G02F1/35;H01S3/00;H01S5/062;H01S5/065;H01S5/14;H01S5/40;H04B10/572;H04J14/00;H04J14/02;H04J14/08;H04Q11/00 |
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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