Fast wavelength-switching of a diode-pumped solid-state disk laser |
| |
Authors: | M Franke W Paa W Triebel M Schnepp H Stafast |
| |
Institution: | (1) Institute of Photonic Technology (IPHT), Albert-Einstein-Strasse 9, 07745 Jena, Germany;(2) Institute for Optics and Quantum Electronics, University of Jena, Max-Wien-Platz 1, 07743 Jena, Germany |
| |
Abstract: | The functionality of two experimental setups for fast wavelength-switching of an Yb:YAG disk laser is tested and characterized.
The first setup consists of two resonators sharing one disk. Both resonators are alternately opened by a chopper disk. Each
resonator is tuned independently by a set of a two-stage Lyot filter and an etalon. Up to 1500 Hz the setup can switch between
two freely selectable wavelengths (linewidth (fwhm) ≪1 pm) within the complete Yb:YAG tuning range (from 1020 nm to 1055 nm) emitting a maximum average power of 105 mW. The power
of both resonators differs by a factor of 0.7. Their pointing stability amounts to 20 μrad. The second setup consists of a
single tunable resonator (two-stage Lyot filter, etalon) additionally equipped with an electro-optical device (Faraday rotator
or Pockels cell) providing a high pointing stability of better than 1 μrad. The wavelength switches occur stepwise and are
predetermined by the etalon (about 90 pm or multiples thereof). The Faraday rotator suffers from its high thermal load and
operates for some few 10 s only at 0.5 Hz. The resonator with the Pockels cell provides long term stability at 1000 Hz, switching
steps up to 1.1 nm and a power ratio of 0.83 for the selected wavelengths. |
| |
Keywords: | PACS" target="_blank">PACS 42 55 Xi 42 60 By 42 60 Da 42 60 Lh 42 62 Fi |
本文献已被 SpringerLink 等数据库收录! |