Efficient side-coupling of LD array into 250-μm double-clad fiber using sub-wavelength grating

S. P. YangY. Y. LiI C. WuB. S. TsaiY. W. LeeS. L. HuangSHENG-LUNG HUANG2019-10-312019-10-312015https://scholars.lib.ntu.edu.tw/handle/123456789/429632Efficient side-coupling of LD array into 250-μm double-clad fiber using sub-wavelength gratingconference paper