Dear Jun Yao: Summary: Using UV curing glue to package fibers to grooves/substrate. A typcial and professional solution for fiber attachment to grooves/substrates is using UV curing glue (or resin). Steps: (1) align the fibers to their desired positions; (2) apply some UV curing glue to the fibers by use of a air- controlled dispensor; (3) Use UV light source to shine and cure the glue. Beste Regards, Zhang Xuming Simon Nanyang Technological University (NTU), Singapore Tel: (65) 6790 5461 Fax: (65) 6790 4161