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Proceedings Paper

One-step holographic grating inscription in polymers
Author(s): Simon Kibben; Michael Koerdt; Javier Garcia; Stanislav A. Kolpakov; Steve Daren; Faina Solomon-Tsvetkov; Thomas Seefeld; Frank Vollertsen
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Paper Abstract

Volume holographic gratings have recently attracted interest as wavelength-selective devices, for applications such as wavelength stabilizers for laser diode sources. These thick gratings are usually produced using various photosensitive materials like photo-thermo-refractive glass and specially prepared polymers. These materials often require two or more process steps for production of volume holographic gratings. In this study several copolymers with MethylMethAcrylate as base material are compared. Unlike commercially available PMMA, the polymers have a glass transition temperature up to 155 °C, which enables the use on higher laser powers. The refractive index of the polymer is modified using 325-nm-radiation. The polymers were not sensitized by peroxidation prior to irradiation, and after the irradiation process, no development was needed. The gratings were recorded with both a Lloyd mirror setup and the well-known phase mask method. The gratings produced have a calculated refractive index variation in the range of 10-5. The reflection characteristics were measured with a modified Michelson interferometer and a tunable laser source. Volume holographic gratings with extremely narrow bandwidth and angular selectivity can be produced on some of the polymers. The production cost of the gratings is low and they can be used for multiple applications such as wavelength tuning and wavelength selection of diode lasers at high power levels.

Paper Details

Date Published: 3 February 2009
PDF: 10 pages
Proc. SPIE 7233, Practical Holography XXIII: Materials and Applications, 72330M (3 February 2009); doi: 10.1117/12.808752
Show Author Affiliations
Simon Kibben, Bremer Institut fuer Angewandte Strahltechnik GmbH (Germany)
Michael Koerdt, Bremer Institut fuer Angewandte Strahltechnik GmbH (Germany)
Javier Garcia, Univ. de Valencia (Spain)
Stanislav A. Kolpakov, Univ. de Valencia (Spain)
Steve Daren, Daren Labs. and Scientific Consultant (Israel)
Faina Solomon-Tsvetkov, Daren Labs. and Scientific Consultant (Israel)
Thomas Seefeld, Bremer Institut fuer Angewandte Strahltechnik GmbH (Germany)
Frank Vollertsen, Bremer Institut fuer Angewandte Strahltechnik GmbH (Germany)

Published in SPIE Proceedings Vol. 7233:
Practical Holography XXIII: Materials and Applications
Hans I. Bjelkhagen; Raymond K. Kostuk, Editor(s)

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