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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 28, Iss. 12 — Jun. 15, 2003
  • pp: 995–997

Fiber Bragg gratings made with a phase mask and 800-nm femtosecond radiation

Stephen J. Mihailov, Christopher W. Smelser, Ping Lu, Robert B. Walker, Dan Grobnic, Huimin Ding, George Henderson, and James Unruh  »View Author Affiliations


Optics Letters, Vol. 28, Issue 12, pp. 995-997 (2003)
http://dx.doi.org/10.1364/OL.28.000995


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Abstract

High-quality retroreflecting fiber Bragg gratings were written in standard Ge-doped telecom fiber (Corning SMF-28) after a few minutes exposure with pulsed 800-nm, 120-fs laser radiation by use of a deep-etch silica zero-order nulled phase mask optimized for 800 nm. Induced index modulations of 1.9×10-3 were achieved with peak power intensities of 1.2×1013 W/cm2 without any fiber sensitization. The fiber gratings are stable and did not erase after 2 weeks at 300 °C. The primary mechanism of induced index change results from a structural modification to the fiber core.

© 2003 Optical Society of America

OCIS Codes
(230.1480) Optical devices : Bragg reflectors
(320.2250) Ultrafast optics : Femtosecond phenomena
(320.7140) Ultrafast optics : Ultrafast processes in fibers
(350.3390) Other areas of optics : Laser materials processing

Citation
Stephen J. Mihailov, Christopher W. Smelser, Ping Lu, Robert B. Walker, Dan Grobnic, Huimin Ding, George Henderson, and James Unruh, "Fiber Bragg gratings made with a phase mask and 800-nm femtosecond radiation," Opt. Lett. 28, 995-997 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-12-995

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