Freiburg 2024 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 13: Quantum Technologies
Q 13.2: Talk
Monday, March 11, 2024, 17:15–17:30, HS 3219
Maiman's heritage, a thin disk cw singlemode Ruby laser for high precision metrology — •Walter Luhs1, Thomas Müller-Wirts2, Carsten Reinhardt3, and Bernd Wellegehausen4 — 1Photonic Engineering Office, Herbert-Hellmann-Allee 57, 79189 Bad Krozingen, Germany — 2TEM Messtechnik GmbH, Großer Hillen 38, 30559 Hannover, Germany — 3Hochschule Bremen, Neustadtswall 30, 28199 Bremen, Germany — 4Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
Maiman's three-level 694 nm Ruby laser is well known as a pulsed laser but is considered to be difficult to operate as a cw system. This recently changed due to successful cw operation pumped with 405 nm diode lasers, Ref. [1] and further refs. therein. Here, we report on the first realization of a thin disk (microchip) cw Ruby laser of only 0.5 mm crystal thickness, allowing highly stable single-frequency operation without any further frequency selective element. Details of the system will be presented, and applications for high-precision metrology will be discussed.
[1] W. Luhs, B. Wellegehausen; Diode pumped compact single frequency cw ruby laser, J. Physics Communications 7 (2023) 0055007
Keywords: Single Mode Ruby Laser; Micro Chip Laser; Precision Metrology Laser; CW Ruby Laser; Visible Radiation