Abstract

The writing of an internal diffraction grating in optical glass plate is demonstrated using low-density plasma formation excited by a high-intensity femtosecond Ti:sapphire laser. The same diffraction efficiency at +-1, +-2, and 0 order isachieved by multiple layers writing. The dependences of diffractive efficiency on the irradiated energy, the speed of writing, the numerical aperture (NA) of the focusing objective, and materials are investigated in detail. The grating isbirefringent. It is attributed to residual stress interaction between glass and femtosecond laser pulse.

© 2005 Chinese Optics Letters

Direct laser writing of relief diffraction gratings into a bulk chalcogenide glass

Tomas Kohoutek, Mark A. Hughes, Jiri Orava, Morio Mastumoto, Takashi Misumi, Hiroyasu Kawashima, Takenobu Suzuki, and Yasutake Ohishi
J. Opt. Soc. Am. B 29(10) 2779-2786 (2012)

Writing waveguides in glass with a femtosecond laser

K. M. Davis, K. Miura, N. Sugimoto, and K. Hirao
Opt. Lett. 21(21) 1729-1731 (1996)

Femtosecond laser writing of Bragg grating waveguide bundles in bulk glass

Markus Thiel, Günter Flachenecker, and Wolfgang Schade
Opt. Lett. 40(7) 1266-1269 (2015)

Femtosecond laser direct writing of multiwavelength Bragg grating waveguides in glass

Haibin Zhang, Shane M. Eaton, Jianzhao Li, and Peter R. Herman
Opt. Lett. 31(23) 3495-3497 (2006)

Regenerated volume gratings in PMMA after femtosecond laser writing

Yu Matushiro, Saulius Juodkazis, Koji Hatanaka, and Wataru Watanabe
Opt. Lett. 42(8) 1632-1635 (2017)