Title :
Low-cost microlens array for long-period grating fabrication
Author :
Liu, S.Y. ; Tam, H.Y. ; Demokan, M.S.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech., Hung Hom, Hong Kong
fDate :
1/7/1999 12:00:00 AM
Abstract :
A low-cost technique using commercial UV-grade fibres to construct a microlens array that is suitable for the mass-production of long-period gratings is reported. The array can withstand in excess of 1 J/cm2 per 20 ns pulses of 248 nm laser light. The growth rate of long-period gratings fabricated using the array is four times faster than that possible using a metal mask
Keywords :
diffraction gratings; microlenses; optical arrays; optical fabrication; optical fibres; 20 ns; 248 nm; UV grade fibre; fabrication; long period grating; low cost technique; microlens array;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990024
