Phase noise reduction of mutually tunable lasers with an external acousto-optic modulator
| Autor: | Julian Schmidt, Kahan Dare, Gene Polovy, Denis Uhland, Erik Frieling, Kirk W. Madison |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
business.industry Stimulated Raman adiabatic passage Spectral density Statistical and Nonlinear Physics Laser 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Frequency comb law Optical cavity 0103 physical sciences Phase noise Optoelectronics Acousto-optic modulator business Actuator |
| Zdroj: | Journal of the Optical Society of America B. 36:464 |
| ISSN: | 1520-8540 0740-3224 |
| DOI: | 10.1364/josab.36.000464 |
| Popis: | Phase noise reduction in an optical phase-locked loop is investigated using an acousto-optic actuator external to the laser cavity and primary stabilization lock. This method does not require modification of the laser cavity or primary lock and is compatible with continuous frequency tuning schemes for a laser locked to a femto-second frequency comb [J. Opt. Soc. Am. B26, 1276 (2009)JOBPDE0740-322410.1364/JOSAB.26.001276; Opt. Lett.40, 4372 (2015)OPLEDP0146-959210.1364/OL.40.004372]. We achieve a cross-over frequency of 275 kHz and we demonstrate a single side band phase noise of −92 dBc/Hz at a 10 kHz offset. Using two independently tunable lasers equipped with this locking system, we demonstrate quantum state manipulation of ultra-cold Li6 dimers using stimulated Raman adiabatic passage. |
| Databáze: | OpenAIRE |
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