吉首大学学报(自然科学版)
吉首大學學報(自然科學版)
길수대학학보(자연과학판)
JOURNAL OF JISHOU UNIVERSITY
2015年
3期
29-31
,共3页
光纤%工作波长%弯曲半径%弯曲损耗
光纖%工作波長%彎麯半徑%彎麯損耗
광섬%공작파장%만곡반경%만곡손모
optical fiber%working wavelength%bending radius%bending loss
测量了1310 nm和1550 nm波长下单膜光纤弯曲半径变化引起的弯曲损耗,分析比较了2种不同波长光和弯曲半径对弯曲损耗的影响。测量结果表明,弯曲损耗系数会随着弯曲半径的增大而减小,并且出现振荡现象。在弯曲半径较大时,弯曲损耗的变化比较平缓,1550 nm波长较1310 nm波长弯曲损耗更易产生,在弯曲半径较小时,弯曲损耗出现剧烈振荡,2种光波长对弯曲损耗的敏感程度交替变大。
測量瞭1310 nm和1550 nm波長下單膜光纖彎麯半徑變化引起的彎麯損耗,分析比較瞭2種不同波長光和彎麯半徑對彎麯損耗的影響。測量結果錶明,彎麯損耗繫數會隨著彎麯半徑的增大而減小,併且齣現振盪現象。在彎麯半徑較大時,彎麯損耗的變化比較平緩,1550 nm波長較1310 nm波長彎麯損耗更易產生,在彎麯半徑較小時,彎麯損耗齣現劇烈振盪,2種光波長對彎麯損耗的敏感程度交替變大。
측량료1310 nm화1550 nm파장하단막광섬만곡반경변화인기적만곡손모,분석비교료2충불동파장광화만곡반경대만곡손모적영향。측량결과표명,만곡손모계수회수착만곡반경적증대이감소,병차출현진탕현상。재만곡반경교대시,만곡손모적변화비교평완,1550 nm파장교1310 nm파장만곡손모경역산생,재만곡반경교소시,만곡손모출현극렬진탕,2충광파장대만곡손모적민감정도교체변대。
The changes of bending loss in 1 310 nm wavelength and 1 550 nm wavelength with different bending radius of optical fiber is measured ,and the effect of different working wavelength light and ben‐ding radius in optical fiber on bending loss is compared .The result shows that the bending loss coefficient decreases with the increase of bending radius ,withthe oscillation phenomenon appearing ;in large bending radius ,bending loss changes gently ,but the bending loss is more likely to occurin 1 550 nm wavelength than in 1 310 nm wavelength .The bending loss show sharp oscillation with small bending radius .At this time ,the sensitivity of two optical wavelengths to the bending loss become large alternately .