Low Threshold 1895 nm Mode-Locked Laser Based on Double Wall Carbon Nanotubes

Weijun Ling; Tao Xia; Zhong Dong; Mingxia Zhang; Yinyan Zuo; Ke Li; Feiping Lu; Qin Liu; Xiaolong Zhao; Yonggang Wang

doi:10.3788/AOS201838.0614001

Journals >Acta Optica Sinica >Volume 38 >Issue 6 >Page 0614001 > Article

Acta Optica Sinica
Vol. 38, Issue 6, 0614001 (2018)

Low Threshold 1895 nm Mode-Locked Laser Based on Double Wall Carbon Nanotubes

Weijun Ling^1、*, Tao Xia¹, Zhong Dong¹, Mingxia Zhang¹, Yinyan Zuo¹, Ke Li¹, Feiping Lu¹, Qin Liu¹, Xiaolong Zhao¹, and Yonggang Wang²

Author Affiliations

¹ Institute of Laser Technology, Tianshui Normal University, Tianshui, Gansu 741001, China

² College of Physics and Information Technology, Shaanxi Normal University, Xi'an, Shaanxi 710062, China

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DOI: 10.3788/AOS201838.0614001 Cite this Article Set citation alerts

Weijun Ling, Tao Xia, Zhong Dong, Mingxia Zhang, Yinyan Zuo, Ke Li, Feiping Lu, Qin Liu, Xiaolong Zhao, Yonggang Wang. Low Threshold 1895 nm Mode-Locked Laser Based on Double Wall Carbon Nanotubes[J]. Acta Optica Sinica, 2018, 38(6): 0614001 Copy Citation Text

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Fig. 1. Schematic configuration of five-mirror folding cavity

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(a) Crystal absorption efficiency; (b) average output power for CW and mode-locked operation versus absorbed pump power; (c) energy flux versus absorption pump power; (d) emission spectrum of the mode locking laser

Fig. 2. (a) Crystal absorption efficiency; (b) average output power for CW and mode-locked operation versus absorbed pump power; (c) energy flux versus absorption pump power; (d) emission spectrum of the mode locking laser

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Fig. 3. Mode-locked pulse trains recorded in 1 ms and 10 ns per division time scales

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Operating state	Radius of curvaturer /mm	Focal length of lens L /mm		Crystal absorption efficiency/%	Light threshold power /mW	Lock mode threshold power /mW	Slope efficiency η/%	Maximum output power /mW	Optical to optical efficiency/%
Operating state	Radius of curvaturer /mm			Crystal absorption efficiency/%	Light threshold power /mW	Lock mode threshold power /mW	Slope efficiency η/%	M₃	M₄
No laser	120			33.75
	100			33.61
	120	100	100	77.40	108		39.16	979	28.88
CW	120	100	75	57.82	59		53.55	1044	30.09
	100	50	75	55.84	40		33.31	639	18.47
CWML	120	100	75	56.43	107	1562	12.50	234	6.70
QML	100	50	75	55.45	79		4.75	86	2.53

Table 1. Detail experimental data

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