CAJ | 학술논문

针对载流子注入马赫-曾德尔干涉型光开关，提出使用输出比可调的3dB耦合器，补偿相移臂上通过载流子注入实现π相位调制所产生的吸收损耗，从而降低光开关的串扰。使用传输矩阵方法计算分析了载流子注入所伴随的吸收损耗对光开关串扰的影响，同时计算了可调3dB耦合器对光开关串扰性能的改进。计算结果表明，可调3dB耦合器的引入可以有效补偿相移臂的吸收损耗，对改善光开关的串扰性能有着明显的作用。
침대재류자주입마혁-증덕이간섭형광개관，제출사용수출비가조적3dB우합기，보상상이비상통과재류자주입실현π상위조제소산생적흡수손모，종이강저광개관적천우。사용전수구진방법계산분석료재류자주입소반수적흡수손모대광개관천우적영향，동시계산료가조3dB우합기대광개관천우성능적개진。계산결과표명，가조3dB우합기적인입가이유효보상상이비적흡수손모，대개선광개관적천우성능유착명현적작용。
Aim at carrier injection type Mach-Zehnder Inferences optical switch, the output adjustable 3dB opti-cal coupler is introduced to compensate the absorption loss ofπphase shift by carrier injection and improve the cross-talk of the optical switch. The crosstalk induced by the absorption is calculated by using transfer matrix method, and the improved crosstalk due to the output adjustable 3dB coupler is calculated meanwhile. The results show that the adjustable 3dB coupler efficiently compensates the loss of the phase shift arm and improve the crosstalk of the opti-cal switch.