光学学报
光學學報
광학학보
ACTA OPTICA SINICA
2001年
1期
28-31
,共4页
杨建良%涂涛%查开德
楊建良%塗濤%查開德
양건량%도도%사개덕
光纤调幅有线电视%外调制发射机%受激布里渊散射%偏振
光纖調幅有線電視%外調製髮射機%受激佈裏淵散射%偏振
광섬조폭유선전시%외조제발사궤%수격포리연산사%편진
受激布里渊散射(SBS)的抑制性能是光纤调幅有线电视外调制发射机的关键指标之一。从理论上分析了入射偏振分别为TE与TM模时，对发射机受激布里渊散射抑制性能的影响。分析计算显示：入射光偏振态模式为TE模最佳。还对入射偏振态偏离TE模的情形进行了分析，表明为保证发射机对受激布里渊散射抑制性能，入射光偏离TE模的角度应小于10°。
受激佈裏淵散射(SBS)的抑製性能是光纖調幅有線電視外調製髮射機的關鍵指標之一。從理論上分析瞭入射偏振分彆為TE與TM模時，對髮射機受激佈裏淵散射抑製性能的影響。分析計算顯示：入射光偏振態模式為TE模最佳。還對入射偏振態偏離TE模的情形進行瞭分析，錶明為保證髮射機對受激佈裏淵散射抑製性能，入射光偏離TE模的角度應小于10°。
수격포리연산사(SBS)적억제성능시광섬조폭유선전시외조제발사궤적관건지표지일。종이론상분석료입사편진분별위TE여TM모시，대발사궤수격포리연산사억제성능적영향。분석계산현시：입사광편진태모식위TE모최가。환대입사편진태편리TE모적정형진행료분석，표명위보증발사궤대수격포리연산사억제성능，입사광편리TE모적각도응소우10°。
The performance of Stimulated Brillouin Scattering (SBS)suppression is one of the key parameters in optical fiber AM-CATV (amplitude modulated cable television) externally modulated transmitters. The influence of the incident polarization state with TE mode and TM mode on the performance for SBS suppression in optical fiber AM-CATV externally modulated transmitters is analyzed theoretically. The analysis and calculation have shown that the TE mode is the best mode for performance of SBS suppression. The influence of the incident polarization state deviating from TE mode is also analyzed and calculated. And it is shown that the deviation angle from the TE mode should be less than 10 degrees so as to the performance for SBS suppression will not be degraded.
