熔融拉锥法

熔融拉锥法以其损耗较低，稳定性较好，适于批量生产等优点，在国内外规模化生产中得到了普遍的使用。

The method of FBT has been widely used in domestic and foreign large-scale production , because of its lower loss , well stability , suitable for batch production and so on .

针对现有熔融拉锥法（FBT）的缺陷，提出了一种CO2激光熔融拉锥系统。

A new melt-drawn fiber taper system using CO2 laser is developed to improve traditional fused biconical taper ( FBT ) technology .

用熔融拉锥法熔合两根掺铒光纤，拉制成工作波长为1550nm的3dB掺铒光纤耦合器。

By using the fusing-elongation machine to fusing together two Er 3 + - doped fibers , a 3 dB nonlinear coupler was fabricated for the signal light at 1550 nm .

熔融拉锥法是制作熔锥型光纤器件的基本工艺[1]，常采用火焰加热。

Fused biconical taper is a basic production technology of fused taper optic devices .

制作光纤耦合器的方法有化学腐蚀法、研磨法和熔融拉锥法。

The making methods of optical fiber couplers have chemical corroding , grinding and fused biconical taper method .

最后，对熔融拉锥法、氢氟酸腐蚀法和边研磨法三种方法的可行性进行了分析与比较，得出一套比较适用于光纤窃听的设计方案。

Finally , the feasibility of the three kinds of coupling method & FBT , HF acid etching and the side-polishing are discussed and compared .