Journal
QUANTUM ELECTRONICS
Volume 48, Issue 8, Pages 686-690Publisher
TURPION LTD
DOI: 10.1070/QEL16722
Keywords
mid-IR range; II-VI crystals; Fe: ZnSe laser; Er: YLF laser; passive Q-switching; intracavity pumping
Funding
- Presidium of the Russian Academy of Sciences (Actual Problems of Photonics, Probing of Inhomogeneous Media and Materials Programme) [7]
- Programme of Increasing the Competitiveness of the National Research Nuclear University 'MEPhI' [02.a03.21.0005]
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Lasing at room temperature is obtained in a Fe: ZnSe crystal installed as a passive Q-switch in a diode-pumped Er: YLF laser resonator. A miniresonator of the Fe: ZnSe laser is formed by mirrors pressed against the optical surfaces of the crystal with high reflectivities at lambda= 4-4.5 pm and a high transmittance for the Er: YLF laser generation lines. In the Er: YLF laser resonator, short pulses of similar to 100 ns duration at lambda= 2.65 pm are generated, stipulated by passive Q-switching of the resonator by the Fe: ZnSe crystal. The absorption of the Er: YLF laser radiation in the Fe: ZnSe crystal leads to the pumping of Fe: ZnSe laser, which generates pulses with a duration of less than 50 ns and an energy of similar to 0.5 mu J at lambda= 4.2 mu m. The laser operates in the pulse-periodic pump regime with a repetition rate up to 200 Hz.
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