Full Content is available to subscribers

Subscribe/Learn More  >
Proceedings Article

Detailed investigations on femtosecond-induced modifications in crystalline quartz for integrated optical applications

[+] Author Affiliations
Matthias Will, Jonas Burghoff, Stefan Nolte, Andreas Tunnermann, Frank Wunderlich, Konrad Goetz

Friedrich-Schiller-Univ. Jena (Germany)

Proc. SPIE 5714, Commercial and Biomedical Applications of Ultrafast Lasers V, 261 (March 25, 2005); doi:10.1117/12.594533
Text Size: A A A
From Conference Volume 5714

  • Commercial and Biomedical Applications of Ultrafast Lasers V
  • Joseph Neev; Christopher B. Schaffer; Andreas Ostendorf; Stefan Nolte
  • San Jose, CA | January 22, 2005

abstract

In recent years, ultrashort laser pulses have drawn increasing interest for the direct writing of photonic structures into different materials. Several optical devices have already been demonstrated, e.g. optical waveguides, waveguide amplifiers and lasers, beam splitters, couplers, stacked waveguides and three-dimensional waveguide arrays and gratings. The investigations were mainly focused on glasses where the laser irradiation causes a rise in refractive index. However, for different applications the realization of waveguides in crystalline media is interesting. Here, we present investigations on femtosecond laser induced modifications in crystalline quartz. We show that the irradiation leads to a refractive index decrease which is due to amorphization of the focal volume. A detailed analysis of the structures is performed with transmission electron microscopy and X-ray diffraction and topography. Our investigations show that the irradiated amorphous core creates a stress field in the surrounding material that possesses a positive index change and therefore supports the guiding of light. The results of the X-ray experiments allow a quantitative characterization of the stress field. We are able to simulate the stress distribution by a simple model based on the density difference between the amorphous and crystalline material. From this the refractive index profile can be calculated and compared to experimental results. The light guiding properties of the compressed regions and the fact that only one polarization is guided can be verified by the simulation results.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Matthias Will ; Jonas Burghoff ; Stefan Nolte ; Andreas Tunnermann ; Frank Wunderlich, et al.
"Detailed investigations on femtosecond-induced modifications in crystalline quartz for integrated optical applications", Proc. SPIE 5714, Commercial and Biomedical Applications of Ultrafast Lasers V, 261 (March 25, 2005); doi:10.1117/12.594533; http://dx.doi.org/10.1117/12.594533


Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).

Figures

Tables

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Proceeding
Sign in or Create a personal account to Buy this proceeding ($15 for members, $18 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.