980/1550保偏光纤波分复用器  

980/1 550 Polarization Maintain Fiber Wavelength Division Multiplexer

作　　者：胡正良[1] 胡永明[1] 罗洪[1] 王文旺[1] 

机构地区：[1]国防科技大学光电科学与工程学院,湖南长沙410073

出　　处：《光电子．激光》2005年第12期1437-1440,共4页Journal of Optoelectronics·Laser

摘　　要：从耦合模理论出发,分析了980/1 550熔融拉锥(FBT)型保偏光纤(PMF)波分复用器(WDM)的工作原理,设计了WDM的制作方法。在FBT台上,通过控制火焰的温度和宽度以及拉伸速度,有效控制WDM的拉伸长度和耦合区结构,用1 550 nm的PMF和H11060单模光纤(SMF)成功研制了高性能的980/1550 PMF WDM。测试结果表明:在1 550 nm波长上,该WDM具有0.2 dB的插入损耗、32 dB的隔离度和22.8 dB的消光比偏振特性;在980 nm波长上,具有0.2 dB的插入损耗、14.8 dB的隔离度。该器件除了具有SMF WDM的特性外,1 550 nm端口还具有偏振保持特性,它将促进PMF激光器和放大器快速发展。The principle of 980/1550 fused biconical taper（FBT） polarization maintain fiber （PMF） wavelength division multiplexer（WDM） is analyzed with coupling mode theory;and the method the device is presented. The length and structure of coupling region are effectively controlled by controlling the temperature and size of flame and stretching speed, so the high performance 980/1550 PMF WDM is successfully manufactured with a ] 550 nm PMF and a Hl]060 single mode fiber（SMF）. The measurement results show that the WDM has insert loss of less than 0.2 dB, isolation of 32 dB and polarization maintain characteristic of 22.8 dB at 1550 nm;and it has insert loss of 0.2 dB and isolation of 14.8 dB at 980 nm. The PMF WDM has the characteristic of polarization maintain at 1 550 nm compared with SMF WDM,and it will accelerate the development of the PMF laser and amplifier.

关 键 词：光纤光学 波分复用器(WMF) 保偏光纤(PMF) 熔融拉锥(FBT) 光纤激光器和放大器 

分 类 号：TN929.11[电子电信—通信与信息系统]