发明申请
WO1997031289A1 APPARATUS AND METHOD FOR CONTROLLING THE SPECTRAL RESPONSE OF A WAVEGUIDE BRAGG GRATING
审中-公开
基本信息:
- 专利标题： APPARATUS AND METHOD FOR CONTROLLING THE SPECTRAL RESPONSE OF A WAVEGUIDE BRAGG GRATING
- 专利标题（中）：用于控制波导束光栅的光谱响应的装置和方法
- 申请号：PCT/CA1996000106 申请日：1996-02-23
- 公开(公告)号：WO1997031289A1 公开(公告)日：1997-08-28
- 发明人： ELECTROPHOTONICS CORPORATION , ALAVIE, Tino , LEBLANC, Michel, Joseph , HUANG, Shangynan , MAASKANT, Robert , MEASURES, Raymond, Massey , OHN, Myo, Myint
- 申请人： ELECTROPHOTONICS CORPORATION
- 专利权人： ELECTROPHOTONICS CORPORATION
- 当前专利权人： ELECTROPHOTONICS CORPORATION
- 主分类号： G02F01/01
- IPC分类号： G02F01/01
摘要：
The present invention provides a method and apparatus for controlling the spectral response of an optical waveguide (30, 40) Bragg grating by control of the strain distribution or temperature distribution imposed along the grating. The precise strain gradient is, for example, produced by a set of independently controlled transducers (44), such as piezoelectric, magnetostrictive, thermo-electric actuators, distributed along the length of the grating. In another embodiment, the Bragg grating (33) is bound to or embedded in a cantilever beam (32) subjected to bending, twisting or tensing. Controlled waveguide Bragg gratings according to the invention can be used to compensate for the dispersion experienced by short optical pulses as they propagate along an optical fiber. They can be tuned and chirped over a broad spectral range with or without a shift in the grating center wavelength. In addition, they can be used to manufacture a variety of spectral filters.
摘要（中）：
本发明提供一种用于通过控制沿着光栅施加的应变分布或温度分布来控制光波导（30,40）布拉格光栅的光谱响应的方法和装置。 精确的应变梯度例如由一组沿着光栅的长度分布的独立控制的传感器（44），例如压电，磁致伸缩，热电致动器产生。 在另一个实施例中，布拉格光栅（33）被绑定或嵌入经受弯曲，扭转或拉紧的悬臂梁（32）中。 根据本发明的控制波导布拉格光栅可用于补偿由短光脉冲沿着光纤传播时经历的色散。 它们可以在光栅中心波长有或没有偏移的宽光谱范围内进行调谐和啁啾。 此外，它们可用于制造各种光谱滤光片。