| 1. | The curve of index profile of planar waveguide was drawn by wkb method . the near field figure of channel waveguide at
并测试了632 . 8nm波长的激光通过沟道波导后的近场图。 |
| 2. | The experiment results show that the two methods are feasible to write array channel waveguides in linbo3 : fe crystal
结果表明，采用这两种方法在linbo _ 3 ： fe晶体中写入阵列通道波导是可行的。 |
| 3. | And the guiding tests of the waveguides are performed . ( 2 ) two methods are used to write array channel waveguides in linbo3 : fe crystal
( 2 )通过两种方法在linbo _ 3 ： fe晶体中进行写入阵列通道波导的实验探索。 |
| 4. | So er doped phosphate glasses are good materials for making edwa , but the channel waveguides are not easy to be made
从离子交换平面波导的发光特性和稳定性上看，磷酸盐玻璃是目前实现激光放大的良好材料，但是条型波导的制备还有难度。 |
| 5. | The relationship between the launching efficiency and the pumping experimental setup has been studied to investigate the launching efficiency of graded - index channel waveguide
摘要为研究条形波导激光器泵浦光的耦合效率，建立了耦合效率和泵浦实验间的直观联系。 |
| 6. | Employing writing beams with appropriate intensity distributions and external electric fields along proper directions , arrays of planar and channel waveguides can be fabricated in various pr crystals
研究结果表明：采用合适的光场强度分布以及合适的外加电场可以在不同光折变晶体中写入平面波导阵列和通道波导阵列。 |
| 7. | ( 3 ) fabrication methods of planar , y - branches , and channel waveguides employing structure lights formed by cylindrical lenses and optical binary masks are investigated experimentally in detail
对利用柱透镜和光学二元掩模板形成的结构光在光折变晶体中写入平面光波导、 y型光波导以及通道光波导的方法进行了详细的实验研究。 |
| 8. | By the ray tracing in the channel waveguide , the dependency of the launching efficiency on the relative position of the pumping beam to the waveguide is analyzed and the coupling conditions are optimized
通过几何光学法追迹泵浦光线在波导中的传播，系统地分析了泵浦光束与波导相对位置变化对泵浦耦合效率的影响，进而确定最佳耦合条件。 |
| 9. | Feasibly experimental projects of fabricating buried waveguides by field - assisted ion - exchanged technology using this equipment were designed . used thermal ion - exchange and the silver film ion - exchange technology , the planar and channel waveguides were fabricated
在实验室允许的条件下,采用ag膜电场辅助离子交换和熔盐离子交换法对铒镱共掺磷酸盐玻璃平板波导和沟道波导进行了制作。 |
| 10. | Because of the limitation of the measuring condition , in the thesis we had only measured some characteristics of the phase modulator : channel waveguides " loss coefficient is 0 . 22db / cm , the split - ratio is 52 / 48 and half - wave voltage is < 5v
由于条件所限，论文中仅测量了直波导损耗系数、相位调制器的半波电压和输出分束比。经测量，半波电压小于5v ，直波导损耗系数为0 . 22db cm ，输出分支比为52 48 。 |
