Silver nanorods absorber for passively Q-switched Nd,Gd:CaF2 laser

Yongjing Wu; Siyuan Pang; Yuqian Zu; Qianqian Peng; Jimin Yang; Jie Liu; Liangbi Su

doi:10.3788/COL201816.020015

Journals >Chinese Optics Letters >Volume 16 >Issue 2 >Page 020015 > Article

Chinese Optics Letters
Vol. 16, Issue 2, 020015 (2018)

Silver nanorods absorber for passively Q-switched Nd,

Gd : {CaF}_{2}

laser

Yongjing Wu¹, Siyuan Pang^3、4, Yuqian Zu¹, Qianqian Peng¹, Jimin Yang¹, Jie Liu^1、2、*, and Liangbi Su^3、4

Author Affiliations

¹Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan 250014, China

²Institute of Data Science and Technology, Shandong Normal University, Jinan 250014, China

³Synthetic Single Crystal Research Center, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China

⁴Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China

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DOI: 10.3788/COL201816.020015 Cite this Article Set citation alerts

Yongjing Wu, Siyuan Pang, Yuqian Zu, Qianqian Peng, Jimin Yang, Jie Liu, Liangbi Su. Silver nanorods absorber for passively Q-switched Nd,

Gd : {CaF}_{2}

laser[J]. Chinese Optics Letters, 2018, 16(2): 020015 Copy Citation Text

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(a) TEM image of the SNRs SA with a scale bar of 500 nm; (b) the absorption intensity coefficient of the SNRs SA; (c) a photograph of SNRs solution; (d) the nonlinear transmission curve of the SNRs SA.

Fig. 1. (a) TEM image of the SNRs SA with a scale bar of 500 nm; (b) the absorption intensity coefficient of the SNRs SA; (c) a photograph of SNRs solution; (d) the nonlinear transmission curve of the SNRs SA.

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Fig. 2. Schematics of diode-pumped Nd,Gd:CaF2 lasers in the CW mode and the PQS mode.

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Fig. 3. (Color online) Average output power versus the absorbed pump power for CW.

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Fig. 4. (Color online) Average output power, pulse width, repetition rate, and single pulse energy of the Q-switched Nd, Gd:CaF2 laser versus the absorbed pump power.

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Fig. 5. Laser emission spectrum of the Q-switched pulse trains with T=3%; (a) the instability of the average output power measured during the 40 min with T=3%; (b) the beam quality of the Q-switched laser with T=3%; (c) the spatial beam profile of the Q-switched laser with T=3%.

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Fig. 6. Typical pulse trains of the Q-switched laser in different time scales

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Transmission of the OC	$T = 2 %$	$T = 3 %$
Maximum average output power	118 mW	116 mW
slope efficiency	12.5%	12.6%
Repetition rate	51.48 kHz	53.92 kHz
Shortest pulse width	1.239 μs	1.046 μs
Single pulse energy	2.29 μJ	2.15 μJ
Peak power	1.85 W	2.06 W