Journal
OPTICS LETTERS
Volume 44, Issue 24, Pages 5892-5895Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.44.005892
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Funding
- National Natural Science Foundation of China [21872084, 61575109]
- Fundamental Research Fund of Shandong University [2018TB044]
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We report the passively Q-switched (PQS) operation in the near infrared (NIR) regime with as-prepared zeolitic imidazolate framework-67 (ZIF-67) as saturable absorbers (SAs) for the first time, to the best of our knowledge. Based on the excellent saturable absorption properties of the as-prepared ZIF-67, passively Q-switched Nd:GdVO 4 lasers were achieved operating at F-4(3/2) -> I-2(11/2) and F-4(3/2) -> I-2(11/2) transitions. The stable Q-switched laser's pulses with a pulse width of 120 ns at a repetition rate of 566 kHz and a pulse width of 108 ns at a repetition rate of 415 kHz were obtained, corresponding to the transition F-4(3/2) -> I-2(11/2) at 1 mu m and the transition F-4(3/2) -> I-2(3/2) at 1.3 mu m, respectively. The results indicate that the ZIF-67 saturable absorber with the advantages of large modulation depth and high thermal stability is a promising saturable absorber candidate for the NIR pulse generation. (C) 2019 Optical Society of America
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