High-power MoTe2-based passively Q-switched erbium-doped fiber laser

Mengli Liu; Wenjun Liu; Peiguang Yan; Shaobo Fang; Hao Teng; Zhiyi Wei

doi:10.3788/COL201816.020007

Journals >Chinese Optics Letters >Volume 16 >Issue 2 >Page 020007 > Article

Chinese Optics Letters
Vol. 16, Issue 2, 020007 (2018)

High-power MoTe₂-based passively Q-switched erbium-doped fiber laser

Mengli Liu¹, Wenjun Liu^1、2、*, Peiguang Yan³, Shaobo Fang², Hao Teng², and Zhiyi Wei²

Author Affiliations

¹State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China

²Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

³Shenzhen Key Laboratory of Laser Engineering, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China

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DOI: 10.3788/COL201816.020007 Cite this Article Set citation alerts

Mengli Liu, Wenjun Liu, Peiguang Yan, Shaobo Fang, Hao Teng, Zhiyi Wei. High-power MoTe₂-based passively Q-switched erbium-doped fiber laser[J]. Chinese Optics Letters, 2018, 16(2): 020007 Copy Citation Text

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Fig. 1. SEM pictures. (a) Side elevation of the tapered fiber deposited by MoTe2. (b) The magnified morphology of materials on the optical fiber surface.

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Fig. 2. Saturable absorption characteristics of the MoTe2 SA.

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Fig. 3. The experimental arrangement of the MoTe2-based passively Q-switched erbium-doped fiber laser, which includes pump, wavelength division multiplexer (WDM), erbium-doped fiber (EDF), optical coupler (OC), polarization controller (PC), isolator (ISO), and molybdenum ditelluride saturable absorber (MoTe2 SA).

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Fig. 4. (a) Pulse distribution. (b) Single pulse duration. (c) RF spectra at two ranges. (d) Spectra at different power levels.

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Fig. 5. (a) The pulse duration and repetition rate. (b) The trend curves of output power and pulse energy.

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Meterials	${MoS}_{2}$	${WS}_{2}$	${WSe}_{2}$	${MoSe}_{2}$	${Bi}_{2} {Se}_{3}$	BP	${MoTe}_{2}$
Wavelength (nm)	1551	1560	1560	1562	1565	1562	1559
Modulation depth	2%	4.48%	3.02%	–	4.3%	10.6%	17.47%
Repetition rate (kHz)	8.77–43.47	91–318	46.3–85.4	16.9–32.8	495–940	7.86–34.32	148–228
Output power (mW)	5.91	17.3	3.16	1.9	22.35	6.67	25
Pulse duration (μs)	3.3	0.16	4.1–9.2	30.4	1.9–7.79	2.96	0.677
Energy (nJ)	160	54.4	484.8	57.9	23.8	194	109
SNR (dB)	50	40	41.9	–	50	53.2	63
References	[39]	[40]	[41]	[42]	[43]	[44]	Our work

Table 1. Performance Comparison of Passively Q-switched EDF Based on Different SAs

Mengli Liu, Wenjun Liu, Peiguang Yan, Shaobo Fang, Hao Teng, Zhiyi Wei. High-power MoTe₂-based passively Q-switched erbium-doped fiber laser[J]. Chinese Optics Letters, 2018, 16(2): 020007

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