A novel long-period fiber grating (LPFG) with refractive index disturbance mainly occurring in the edge region of the fiber cladding is written without any destructive damage on the fiber, based on the thermal shock and rapid cooling effects of the high frequency CO2 laser pulses exposure method in this paper. An edge-written LPFG with a resonant peak of ~18dB is obtained using a standard telecommunication fiber. The experimental results show that such a novel LPFG structure has much higher refractive index sensitivity over conventional LPFGs side-written.

© 2007 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription