BANDPASS FILTER BASED ON A MOIRE IN FIBER BRAGG GRATING WITH A STRETCH AND DOUBLE EXPOSURE METHOD
用拉伸和二次曝光法制作基于莫阿光纤光栅的带通滤波器

Using a uniform phase mask,a bandpass filter based on Moire Bragg grating in fiber is fabricated through a stretch and double exposure method.The bandpass width is 0.28nm.A theoretical analysis about the Moire grating so made is given.It is also measured the characteristics of a uniform Bragg grating.