Single-mode grating reflection in all-solid photonic bandgap fibers inscribed by use of femtosecond laser pulse irradiation through a phase mask.
Single-mode Bragg grating reflection has been achieved in all-solid photonic bandgap fibers by use of femtosecond laser pulse irradiation through a phase mask. The grating created is confined to the all-silica fiber core region and exhibits higher thermal stability than other type I femtosecond-pulse-induced gratings.
Li
Yuhua
Y
Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, Wuhan 430074, China.
Wang
D N
DN
Jin
Long
L