Efficient diode-pumped all-solid-state ultrafast 2.3 µm thulium-doped yttrium lithium fluoride laser

A diode-pumped passively mode-locked Tm 3+ -doped yttrium lithium fluoride (YLF) bulk laser at ∼2.3 µm is successfully achieved by using a kind of GaAs-based semiconductor saturable absorber mirror (SESAM). When working in the continuous mode-locking regime, stable ultrashort pulses with a duration...

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Bibliographic Details
Published in:Optics letters 2022-08, Vol.47 (16), p.4080
Main Authors: Zhou, Xue, Li, Jiatong, Mao, Jiajia, Hu, Ping, Nie, Hongkun, Wang, Huahang, Wang, Ruihua, Li, Tao, Zhang, Baitao, He, Jingliang, Yang, Kejian
Format: Article
Language:English
Subjects:
Frequency spectrum
Mode locking
Noise levels
Signal to noise ratio
Solid state
Thulium
YLF lasers
Yttrium
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Summary:A diode-pumped passively mode-locked Tm 3+ -doped yttrium lithium fluoride (YLF) bulk laser at ∼2.3 µm is successfully achieved by using a kind of GaAs-based semiconductor saturable absorber mirror (SESAM). When working in the continuous mode-locking regime, stable ultrashort pulses with a duration of 52.5 ps and a repetition rate of 67 MHz are generated, with a corresponding maximum dual-output power of 284 mW. The radio-frequency spectrum of the output pulses demonstrates a high signal-to-noise ratio of 60 dB. To the best of our knowledge, this is the first report of a diode-pumped all-solid-state passively mode-locked thulium-doped laser at ∼2.3 µm.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.466164