The multi-phase-shifts fiber grating with cascade phase-shifts can be used as bandwidth filter and its bandwidth can be widened by increasing cascade numbers.
相移级联光栅可用作带宽滤波器，通过增加相移光栅的级联数增加带宽。
2
For example, phaseshifts typically last 55 milliseconds, but an additional 1 millisecond seemed to add as many as 20 points to the child's IQ.
一个例子中相移持续了55毫秒，但是每增加1毫秒的时间好像会增加儿童的IQ成绩20分。
3
There are four possible phaseshifts, allowing two bits of data to be encoded per symbol.