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Applied Physics A

, Volume 83, Issue 3, pp 347–350 | Cite as

Thermal effects vs. gain in femtosecond laser written waveguides in neodymium doped fused silica

  • G. MatthäusEmail author
  • J. Burghoff
  • M. Will
  • S. Nolte
  • A. Tünnermann
Rapid communication

Abstract

The influence of thermal effects in gain measurements of fs laser-written waveguides in actively doped glass is reported for the first time. We show that these effects strongly contribute to the signal enhancement (up to 50% observed). Thus, a new measurement scheme to distinguish between thermal induced signal increase and real amplification is proposed.

Keywords

Pump Power Refractive Index Change Laser Glass Gain Measurement Integrate Optical Device 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2006

Authors and Affiliations

  • G. Matthäus
    • 1
    Email author
  • J. Burghoff
    • 1
  • M. Will
    • 1
  • S. Nolte
    • 1
  • A. Tünnermann
    • 1
  1. 1.Institute of Applied PhysicsFriedrich-Schiller-University JenaJenaGermany

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