Send to:

Choose Destination
See comment in PubMed Commons below
Opt Lett. 2008 Jul 1;33(13):1449-51.

Bragg grating recording in low-defect optical fibers using ultraviolet femtosecond radiation and a double-phase mask interferometer.

Author information

  • 1Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, PO Box 1527, 71110, Heraklion, Greece.


The fabrication of Bragg reflectors in fluorine depressed cladding silicate glass and SMF-28 fibers by employing a double-phase mask interferometer and 248 nm, 500 fs laser radiation is demonstrated here. The maximum refractive index changes obtained were of the order of 6 x 10(-4) for pulse intensities of 220 GW/cm(2) and accumulated energy densities of 3.5 kJ/cm(2). The Bragg gratings fabricated in the F-doped fiber endured temperatures greater than 700 degrees C, while those inscribed in the standard telecom fiber demarcated at 900 degrees C. The experimental results presented depict that the combination of the two phase mask interferometer and the 248 nm photon at sub-TW/cm(2) intensities constitute an efficient route in the fabrication of Bragg gratings in low-defect silicate glass optical fibers.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Optical Society of America
    Loading ...
    Write to the Help Desk