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Stoychev LI, Cabrera H, Gadedjisso-Tossou KS, Vasiliev N, Zaporozhchenko Y, Nikolov IP, Sigalotti P, Demidovich AA, Suárez-Vargas JJ, Mocchiutti E, Pizzolotto C, Niemela J, Baruzzo M, Danailov MB, Vacchi A. 24 mJ Cr +4:forsterite four-stage master-oscillator power-amplifier laser system for high resolution mid-infrared spectroscopy. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019; 90:093002. [PMID: 31575267 DOI: 10.1063/1.5115105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 08/31/2019] [Indexed: 06/10/2023]
Abstract
We present the design of a Cr:forsterite based single-frequency master-oscillator power-amplifier laser system delivering much higher output energy compared to previous literature reports. The system has four amplifying stages with two-pass configuration each, thus enabling the generation of 24 mJ output energy in the spectral region around 1262 nm. It is demonstrated that the presented Cr:forsterite amplifier preserves high spectral and pulse quality, allowing a straightforward energy scaling. This laser system is a promising tool for tunable nonlinear down-conversion to the mid-infrared spectral range and will be a key building block in a system for high-resolution muonic hydrogen spectroscopy in the 6.8 μm range.
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Affiliation(s)
- Lyubomir I Stoychev
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste 34149, Italy
| | - Humberto Cabrera
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste 34149, Italy
| | | | | | | | | | | | | | | | - Emiliano Mocchiutti
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste 34149, Italy
| | - Cecilia Pizzolotto
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste 34149, Italy
| | - Joseph Niemela
- Optics Lab, The Abdus Salam International Centre for Theoretical Physics, Trieste 34151, Italy
| | - Marco Baruzzo
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste 34149, Italy
| | | | - Andrea Vacchi
- Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Trieste 34149, Italy
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Diettrich JC, Warrington DM, McKinnie IT. 2-mJ single-axial-mode gain-switched Cr:forsterite lasers. APPLIED OPTICS 2003; 42:2206-2212. [PMID: 12716163 DOI: 10.1364/ao.42.002206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Single-longitudinal-mode operation of gain-switched Cr4+ laser, with output energy as much as 1.9 mJ, is reported from two different coupled-cavity resonators. A prism-coupled cavity and a modified Michelson interferometric grazing-incidence (MIGI) cavity was pumped by a multilongitudinal-mode Q-switched Nd:YAG laser; the modified MIGI cavity obtained 100-MHz-bandwidth laser output tunable between 1150 and 1330 nm. Conversion efficiency of 3.2% (slope efficiency of 4%) was achieved, with a pump threshold density as small as 0.2 J/cm2. Mode spacing of the laser output in multilongitudinal mode showed increased mode spacing in agreement with a coupled-cavity theory.
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Affiliation(s)
- Jan C Diettrich
- Department of Physics, University of Otago, PO Box 56, Dunedin, New Zealand.
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