Generation of sub-100  fs pulses tunable from 1700 to 2100  nm from a compact frequency-shifted Er-fiber laser

Grzegorz Soboń; Tadeusz Martynkien; Karol Tarnowski; Paweł Mergo; Jarosław Sotor

doi:doi:10.1364/PRJ.5.000151

Photonics Research, 2017, 5 (3): 03000151, Published Online: Oct. 9, 2018

Generation of sub-100 fs pulses tunable from 1700 to 2100 nm from a compact frequency-shifted Er-fiber laser

Grzegorz Soboń ^1,*Tadeusz Martynkien ²Karol Tarnowski ²Paweł Mergo ³Jarosław Sotor ¹

Author Affiliations

¹ Laser & Fiber Electronics Group, Faculty of Electronics, Wrocław University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland

² Department of Optics and Photonics, Faculty of Fundamental Problems of Technology, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland

³ Laboratory of Optical Fiber Technology, Maria Curie-Sklodowska University, pl. M. Curie-Sklodowskiej 3, Lublin, Poland

Figures & Tables

Fig. 1. Experimental setup of the all-fiber frequency-shifted laser. EDF: Erbium-doped fiber; GSA: graphene saturable absorber; WDM: wavelength division multiplexer; OC/ISO/WDM—output coupler/isolator/WDM hybrid component.

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Fig. 2. SEM images of the fabricated HNLF.

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Fig. 3. Measured dispersion characteristics of the HNLF and DCF fibers (dotted lines). Blue solid line represents the HNLF dispersion curve calculated based on the actual geometry of the fiber. Red solid line is the polynomial fitting of the measured DCF-2000 dispersion curve.

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Fig. 4. Measured (blue line) and calculated (red dots) optical spectra at the DCF output for different pumping powers. Spectra between 1800–1920 nm are affected by water absorption lines.

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Fig. 5. Average output power of the frequency-shifted soliton (filtered from the entire spectrum) at different central wavelengths.

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Fig. 6. Measured pulse autocorrelations of the frequency-shifted solitons at different central wavelengths from 1700 to 2100 nm.

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Fig. 7. Comparison between the (a) optical spectrum and (b) pulse duration of the soliton centered at 2050 nm before and after the DCF-2000 fiber.

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Table1. Summary of the Obtained Results

$P_{in} (mW)$	$τ_{in} (fs)$	$λ_{SSFS} (nm)$	$Δ λ_{SSFS} (nm)$	$P_{SSFS} (mW)$	$L_{DCF} (cm)$	$τ_{SSFS} (fs)$
39	300	1700	64	—	49	72
46	267	1750	72	—	59	68
53	236	1800	68	9.8	76	76
60	206	1850	64	12.4	76	77
72	145	1900	71	13.3	88	80
79	118	1950	85	16.1	115	83
85	76	2000	80	16.4	148	88
101	30	2050	101	19.5	178	92
115	27	2100	86	19.8	210	107

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Grzegorz Soboń, Tadeusz Martynkien, Karol Tarnowski, Paweł Mergo, Jarosław Sotor. Generation of sub-100 fs pulses tunable from 1700 to 2100 nm from a compact frequency-shifted Er-fiber laser[J]. Photonics Research, 2017, 5(3): 03000151.

Generation of sub-100 fs pulses tunable from 1700 to 2100 nm from a compact frequency-shifted Er-fiber laser

Fig. 1. Experimental setup of the all-fiber frequency-shifted laser. EDF: Erbium-doped fiber; GSA: graphene saturable absorber; WDM: wavelength division multiplexer; OC/ISO/WDM—output coupler/isolator/WDM hybrid component.

Fig. 2. SEM images of the fabricated HNLF.

Fig. 3. Measured dispersion characteristics of the HNLF and DCF fibers (dotted lines). Blue solid line represents the HNLF dispersion curve calculated based on the actual geometry of the fiber. Red solid line is the polynomial fitting of the measured DCF-2000 dispersion curve.

Fig. 4. Measured (blue line) and calculated (red dots) optical spectra at the DCF output for different pumping powers. Spectra between 1800–1920 nm are affected by water absorption lines.

Fig. 5. Average output power of the frequency-shifted soliton (filtered from the entire spectrum) at different central wavelengths.

Fig. 6. Measured pulse autocorrelations of the frequency-shifted solitons at different central wavelengths from 1700 to 2100 nm.

Fig. 7. Comparison between the (a) optical spectrum and (b) pulse duration of the soliton centered at 2050 nm before and after the DCF-2000 fiber.

Table1. Summary of the Obtained Results

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Generation of sub-100 fs pulses tunable from 1700 to 2100 nm from a compact frequency-shifted Er-fiber laser

Fig. 1. Experimental setup of the all-fiber frequency-shifted laser. EDF: Erbium-doped fiber; GSA: graphene saturable absorber; WDM: wavelength division multiplexer; OC/ISO/WDM—output coupler/isolator/WDM hybrid component.

Fig. 2. SEM images of the fabricated HNLF.

Fig. 3. Measured dispersion characteristics of the HNLF and DCF fibers (dotted lines). Blue solid line represents the HNLF dispersion curve calculated based on the actual geometry of the fiber. Red solid line is the polynomial fitting of the measured DCF-2000 dispersion curve.

Fig. 4. Measured (blue line) and calculated (red dots) optical spectra at the DCF output for different pumping powers. Spectra between 1800–1920 nm are affected by water absorption lines.

Fig. 5. Average output power of the frequency-shifted soliton (filtered from the entire spectrum) at different central wavelengths.

Fig. 6. Measured pulse autocorrelations of the frequency-shifted solitons at different central wavelengths from 1700 to 2100 nm.

Fig. 7. Comparison between the (a) optical spectrum and (b) pulse duration of the soliton centered at 2050 nm before and after the DCF-2000 fiber.

Table1. Summary of the Obtained Results

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