Title :
Fabrication of large scale integrated-optic N*N star couplers
Author :
Okamoto, K. ; Okazaki, H. ; Ohmori, Y. ; Kat, K.
Author_Institution :
NTT Optoelectron. Lab., Ibaraki, Japan
Abstract :
The fabrication and performance of integrated-optic 64*64 and 144*144 star couplers based on high-silica planar lightwave circuit (PLC) technology are reported. The star couplers exhibit low insertion loss (average excess loss alpha =1.66 dB for 64*64 and alpha =2.02 dB for 144*144) and good splitting uniformity (standard deviation sigma =0.92 dB for 64*64 and sigma =1.47 dB for 144*144P) at 1.55 mu m.<>
Keywords :
integrated optics; optical couplers; optical fibres; optical workshop techniques; 1.55 micron; 1.66 dB; 144 by 144 couplers; 2.02 dB; 64 by 64 couplers; Si substrate; SiO/sub 2/; excess loss; fabrication; high-silica planar lightwave circuit; input fibres; large scale integrated-optic N*N star couplers; low insertion loss; output fibres; performance; splitting uniformity; Circuits; Couplers; Fabrication; Large scale integration; Large-scale systems; Optical arrays; Optical receivers; Optical waveguides; Programmable control; Slabs;
Journal_Title :
Photonics Technology Letters, IEEE
