Osnabrück 2002 – scientific programme

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Q: Quantenoptik

Q 111: Laser I

Q 111.4: Talk

Monday, March 4, 2002, 14:45–15:00, HS 22/B01

Rubust external cavity diode lasers (ECDL) with implemented antireflection coated blue laserdiodes and their performance in atom absorption spectroscopy — •Lars Hildebrandt, Joachim Sacher, and Richard Knispel — Hannah Arendt Str. 3-7, 35037 Marburg

Rubust external cavity diode lasers (ECDL) with implemented antireflection coated blue laserdiodes and their performance in atom absorption spectroscopy

L. Hildebrandt, J. Sacher, R. Knispel Sacher Lasertechnik, Hannah Arendt Str. 3-7, 35037 Marburg 06421 305290 Contact@Sacher.de

For the first time we present antireflection coated blue laserdiodes and their performance in Littrow and Littman ECDL. A summary of existing ECDL manufactured by Sacher Lasertechnik is given in this talk. Wavelength regions that are currently covered by our lasers include the regions 400-420nm, 625-700nm, 730-1100nm, and 1240-1660nm. The objective of the current work is to optimize the performance of our Littrow and Littman lasersystems by the use of antireflection coated blue diodes. We compare ECDL in both Littman and Littrow configuration. The whole spectral range from below 400nm to about 400nm is covered, while each lasersystem covers about 5nm around its center wavelength. The linewidth is in the MHz regime with singlemode cw-power of up to 25mW. An atom absorption experiment is described, which prooves the performance of the lasersystems. As these diodes were coated for the first time, we also present data of the newly coated diodes themselves.