Design of a Littrow-type diode laser with independent control of cavity length and grating rotation
Anno: 2021
Autori: Duca L., Perego E., Berto F., Sias C.
Affiliazione autori: INRiM, Str Cacce 91, I-10135 Turin, Italy; Politecn Torino, Corso Duca Abruzzi 24, I-10129 Turin, Italy; LENS, Via Carrara 1, I-50019 Sesto Fiorentino, Italy; Ist Nazl Ottica, CNR, I-50019 Sesto Fiorentino, Italy.
Abstract: We present a novel, to the best of our knowledge, extended-cavity diode laser based on a modified Littrow configuration. The coarse wavelength adjustment via the rotation of a diffraction grating is decoupled from the fine tuning of the external cavity modes by positioning a piezo transducer behind the diode laser, making the laser robust against misalignment and hysteresis even with long external cavities. Two laser prototypes with external cavities of different lengths were tested with a 780 nm laser diode, and locked to an atomic reference. We observed a mode-hop-free frequency tunability broader than the free spectral range of the external cavity upon changes in its length. The design is well suited to atomic and molecular experiments demanding a high level of stability over time. (C) 2021 Optical Society of America
Giornale/Rivista: OPTICS LETTERS
Volume: 46 (12) Da Pagina: 2840 A: 2843
Maggiori informazioni: European Metrology Programme for Innovation and Research (17FUN07 CC4C); European Research Council (639242, 899912).Parole chiavi: Mode; Compact; System; NoiseDOI: 10.1364/OL.423813Citazioni: 12dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui
