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Sonnenschein, Volker; Tomita, Hideki; Kotaro, Kato; Koya, Hattori; Studer, Dominik; Terabayashi, Ryohei; Weber, Felix; Wendt, Klaus; Nishizawa, Norihiko; Iguchi, Tetsuo
Hyperfine interactions, 2020/12, Letnik: 241, Številka: 1Journal Article
A direct diode pumped continuous-wave Ti:sapphire laser (DDPTS) is presented. A bow-tie geometry with optical diode is chosen for unidirectional single-mode operation. Frequency selection is performed with a standard combination of birefringent filter and etalon. To accomplish mode-hop free frequency tuning the piezo-driven etalon is stabilized to one of the cavity modes via dither-locking method. To suppress environmental fluctuations the cavity-mode is additionally locked to an external optical cavity with low frequency drift. Feasibility of the setup for high-resolution spectroscopy is demonstrated by saturated absorption spectroscopy of the D 2 line of Rubidium.
