Generation of wavelength-tunable and coherent dual-wavelength solitons in the C + L band by controlling the intracavity loss

Tianyu Zhu; Zhaokun Wang; D. N. Wang; Fan Yang; Liujiang Li

doi:doi:10.1364/PRJ.7.000853

Photonics Research, 2019, 7 (8): 08000853, Published Online: Jul. 17, 2019

Generation of wavelength-tunable and coherent dual-wavelength solitons in the C + L band by controlling the intracavity loss Download： 563次

Tianyu Zhu ¹Zhaokun Wang ^1,2,*D. N. Wang ^1,3,*Fan Yang ¹Liujiang Li ¹

Author Affiliations

¹ College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, China

² e-mail: 16a0402091@cjlu.edu.cn

³ e-mail: dnwang@cjlu.edu.cn

Figures & Tables

Fig. 1. (a) ASE transmission spectrum of the EDF; (b) varied intensity differences of the ASE transmission spectrum (VOA device) with the increase of the additional intracavity loss (labeled); inset, the original spectrum of the BBS.

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Fig. 2. (a) Schematic diagram of SMF-NCF-GIMF-SMF structure; (b) nonlinear saturable absorption curve of the NCF-GIMF device; inset, the transmission spectrum of the NCF-GIMF device.

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Fig. 3. Schematic diagram of the experimental setup. The red arrow represents the laser direction.

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Fig. 4. Conventional mode-locked single soliton outputs. (a) Optical spectrum; (b) autocorrelation trace; (c) pulse train; (d) RF spectrum.

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Fig. 5. Output power of the fiber laser versus pump power.

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Fig. 6. (a)–(k) Tunable spectra of the mode-locking operation in the C + L band at different additional insertion losses.

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Fig. 7. Evolution of relevant parameters during tuning process. (a) Corresponding central wavelengths at different intracavity losses; (b) pulse energy and average power after subtracting the CW light as functions of the tuning wavelength; (c) pulse width and 3-dB bandwidth as functions of the tuning wavelength.

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Fig. 8. (a)–(e) Different spectra of dual wavelength; (a1)–(e1) corresponding autocorrelation traces; insets: wide-range autocorrelation trace diagram.

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Fig. 9. (a) Pulse train of the dual-wavelength; (b) corresponding RF spectrum.

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Fig. 10. Controllable pulse energies of the dual wavelength. (a), (b) The spectra; (c), (d) corresponding autocorrelation traces; insets: wide-range autocorrelation trace diagram.

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Table1. Detailed Characteristics of the Coherent Dual-Wavelength Solitons Corresponding to Fig. 8^a

F. N.	S. S.	C. W.	B. W.	M. P.	P. W.
Figures 8(a) and 8(a1)	33.01 nm	1569.63; 1602.64 nm	3.5; 4.3 nm	0.442 ps	980 fs
Figures 8(b) and 8(b1)	22.29 nm	1572.96; 1595.25 nm	4.7; 4.7 nm	0.495 ps	941 fs
Figures 8(c) and 8(c1)	19.90 nm	1574.03; 1593.93 nm	5.4; 5.0 nm	0.513 ps	895 fs
Figures 8(d) and 8(d1)	14.55 nm	1575.94; 1590.49 nm	5.2; 4.8 nm	0.552 ps	944 fs
Figures 8(e) and 8(e1)	$\sim 11 nm$	$\sim 1578$ ; $\sim 1589 nm$	NA	NA	348 fs

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Tianyu Zhu, Zhaokun Wang, D. N. Wang, Fan Yang, Liujiang Li. Generation of wavelength-tunable and coherent dual-wavelength solitons in the C + L band by controlling the intracavity loss[J]. Photonics Research, 2019, 7(8): 08000853.

Generation of wavelength-tunable and coherent dual-wavelength solitons in the C + L band by controlling the intracavity loss Download： 563次

Fig. 1. (a) ASE transmission spectrum of the EDF; (b) varied intensity differences of the ASE transmission spectrum (VOA device) with the increase of the additional intracavity loss (labeled); inset, the original spectrum of the BBS.

Fig. 2. (a) Schematic diagram of SMF-NCF-GIMF-SMF structure; (b) nonlinear saturable absorption curve of the NCF-GIMF device; inset, the transmission spectrum of the NCF-GIMF device.

Fig. 3. Schematic diagram of the experimental setup. The red arrow represents the laser direction.

Fig. 4. Conventional mode-locked single soliton outputs. (a) Optical spectrum; (b) autocorrelation trace; (c) pulse train; (d) RF spectrum.

Fig. 5. Output power of the fiber laser versus pump power.

Fig. 6. (a)–(k) Tunable spectra of the mode-locking operation in the C + L band at different additional insertion losses.

Fig. 8. (a)–(e) Different spectra of dual wavelength; (a1)–(e1) corresponding autocorrelation traces; insets: wide-range autocorrelation trace diagram.

Fig. 9. (a) Pulse train of the dual-wavelength; (b) corresponding RF spectrum.

Fig. 10. Controllable pulse energies of the dual wavelength. (a), (b) The spectra; (c), (d) corresponding autocorrelation traces; insets: wide-range autocorrelation trace diagram.

Table1. Detailed Characteristics of the Coherent Dual-Wavelength Solitons Corresponding to Fig. 8^a

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Generation of wavelength-tunable and coherent dual-wavelength solitons in the C + L band by controlling the intracavity loss Download： 563次

Fig. 1. (a) ASE transmission spectrum of the EDF; (b) varied intensity differences of the ASE transmission spectrum (VOA device) with the increase of the additional intracavity loss (labeled); inset, the original spectrum of the BBS.

Fig. 2. (a) Schematic diagram of SMF-NCF-GIMF-SMF structure; (b) nonlinear saturable absorption curve of the NCF-GIMF device; inset, the transmission spectrum of the NCF-GIMF device.

Fig. 3. Schematic diagram of the experimental setup. The red arrow represents the laser direction.

Fig. 4. Conventional mode-locked single soliton outputs. (a) Optical spectrum; (b) autocorrelation trace; (c) pulse train; (d) RF spectrum.

Fig. 5. Output power of the fiber laser versus pump power.

Fig. 6. (a)–(k) Tunable spectra of the mode-locking operation in the C + L band at different additional insertion losses.

Fig. 8. (a)–(e) Different spectra of dual wavelength; (a1)–(e1) corresponding autocorrelation traces; insets: wide-range autocorrelation trace diagram.

Fig. 9. (a) Pulse train of the dual-wavelength; (b) corresponding RF spectrum.

Fig. 10. Controllable pulse energies of the dual wavelength. (a), (b) The spectra; (c), (d) corresponding autocorrelation traces; insets: wide-range autocorrelation trace diagram.

Table1. Detailed Characteristics of the Coherent Dual-Wavelength Solitons Corresponding to Fig. 8a

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Table1. Detailed Characteristics of the Coherent Dual-Wavelength Solitons Corresponding to Fig. 8^a