Abstract
A method for inscribing fiber bragg gratings (FBG) using direct, point-by-point writing by an infrared femtosecond laser was described. The method requires neither phase-masks nor photosensitized fibers and hence offers remarkable technology flexibility. It requires a very short inscription time of less than 60 s per grating. Gratings of first to third order were produced in non-photosensitized, standard telecommunication fiber (SMF) and dispersion shifted fiber (DSF). The gratings produced in this method showed low insertion loss, narrow linewidth and strong, fundamental or high-order resonance.
| Original language | English |
|---|---|
| Pages (from-to) | 1170-1172 |
| Number of pages | 3 |
| Journal | Electronics letters |
| Volume | 40 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 16 Sept 2004 |
Keywords
- dielectric materials
- electromagnetic dispersion
- infrared radiation
- laser applications
- laser pulses
- optical communication
- photosensitivity
- polycrystalline materials
- dispersion shifted fibers
- infrared femtosecond lasers
- standard telecommunication fibers
- UV lasers