supported by the National Natural Science Foundation of China(Nos.61177069,61275076 and 61275092);"973"Program(No.2010CB328206)
An up-tapered Mach-Zehnder interferometer(MZI) is proposed and demonstrated.By applying a modification setting of an existing program of the fusion splicer,two up-tapers are fabricated by pushing both sides of the fib...