Revision on fiber dispersion measurement based on Kelly sideband measurement

Ge, Yingting; Guo, Qianying; Shi, Jiangwei; Chen, Xutao; Bai, Yunsheng; Luo, Jiaolin; Jin, Xinxin; Ge, Yanqi; Li, Lei; Tang, Dingyuan; Shen, Deyuan; Zhao, Lei

doi:10.1002/mop.29532

Cited by 12 publications

(4 citation statements)

References 8 publications

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“…. Similar ring cavity structures of solitons with these values of anomalous net dispersion have been previously achieved [41,42].The total net dispersion of the cavity is estimated using the method in [28,43] and is determined by the N-order position of the Kelly sidebands from the center wavelength of the ML soliton. This theoretical value has been calculated by (1): (1) where is the wavelength distance from the Kelly sideband position to the central wavelength, N is the sideband order, is the soliton central wavelength, c is the speed of light in vacuum, D is the dispersion parameter, L is the cavity length and is the soliton pulse width.…”

Section: Experimental Setup and Principlesupporting

confidence: 52%

Tunable SESAM-Based Mode-Locked Soliton Fiber Laser in Linear Cavity by Axial-Strain Applied to an FBG

Litago

Leandro

Quintela

et al. 2017

J. Lightwave Technol.

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Abstract-A self-started stable tunable mode-locked (ML) soliton fiber laser in a linear cavity structure composed by commercial passive elements is presented in this paper. It is based on the combination of an Erbium doped fiber (EDF) as the active medium, and a saturated fiber Bragg grating (FBG) as a partial mirror of the cavity. The other side of the cavity consists of a semiconductor saturable absorber mirror (SESAM) acting also as the mode-locking device. The central wavelength of the FBG is selected by the application of axial strain giving rise to a tunable soliton over 8.6 nm on the C band with a variable spacing of 0.01 nm. The laser delivers 18.9 ps long pulses with a 0.14 nm bandwidth, an 8.2 MHz repetition rate, a pulse energy of 89 pJ and a peak power of 4.71 W.

show abstract

Section: Experimental Setup and Principlesupporting

confidence: 52%

Tunable SESAM-Based Mode-Locked Soliton Fiber Laser in Linear Cavity by Axial-Strain Applied to an FBG

Litago

Leandro

Quintela

et al. 2017

J. Lightwave Technol.

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show abstract

“…Interference may occur before dispersion waves dissipate completely, resulting in the generation of Kelly sidebands at positions where interference strengthens. As pump power reaches sufficiently high levels, the interplay of gain, loss, dispersion, nonlinear effects, and other factors leads to unstable dispersion waves, causing shifts in interference positions [29]. The interaction between asynchronous resonant dispersion waves and solitons induces changes in pulse intensity, triggering soliton oscillations and synchronous resonant dispersion wave alterations that shift the positions of Kelly sidebands.…”

Section: Resultsmentioning

confidence: 99%

Study on Spectrum Shifting and Pulse Splitting of Mode-Locked Fiber Lasers Based on NPR Technology

Hao,

Hu,

Zhou

et al. 2024

Nanomaterials

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We conducted a systematic investigation into the spectral and pulse characteristics of C and L-band Nonlinear Polarization Rotation (NPR) mode-locked fiber lasers effectively employing nonlinear polarization rotation technology. In our experimental setup, we achieved a stable mode-locked state at 1560.076 nm, exhibiting a 3 dB spectral bandwidth of 9.1 nm. As the pump power increased, we observed spectral shifts accompanied by shifts in the first Kelly sideband and the generation of new Kelly sidebands. In this paper, the phenomenon of spectral deviation is elucidated through the interplay of self-phase modulation, group velocity drift, and polarization-dependent isolator (PD-ISO) filter effect, with an analysis of the formation and deviation of Kelly sidebands. Notably, spectral shift persisted even when the pump power exceeded 200 mW. However, continuous pump power escalation led to soliton splitting, resulting in the formation of new soliton beams. Based on the simultaneous generation of spectral shift and pulse splitting, our study contributes to an enhanced understanding of soliton dynamics in ultrafast fiber lasers and lays a foundation for the application of high-repetition-frequency harmonic mode-locked lasers with tunable wavelengths.

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“…Additionally, from the spectrum in figure 11, Kelly's sidebands are observed which is a clear indication that the laser operates within the net anomalous dispersion of conventional soliton regime [32]. A soliton regime manifests from the interplay between negative dispersion and the nonlinear effect in the laser cavity, as a result of balanced effect between dispersion and non-linearity in the laser cavity [33]. The total group velocity dispersion (GVD) is calculated to verify that the laser performs in the net anomalous dispersion regime.…”

Section: Mode-locked Fiber Laser Performancementioning

confidence: 91%

Passively mode-locked ultrashort pulse fiber laser incorporating multi-layered graphene nanoplatelets saturable absorber

et al. 2018

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In this paper, a passive mode-locked erbium-doped fiber laser (EDFL) incorporating graphene nanoplatelet (GNP) powder-based saturable absorber (SA) with short pulse duration in femtosecond range is demonstrated. A good synthesis of GNP can be simply produced via a combination of thermal, chemical, and mechanical exfoliation of expandable graphite. The GNP-SA is fabricated by mechanically imprinting the powder onto the tip of a single mode fiber ferrule. The characterization of SA is done via focus ion beam scanning electron microscope, energy dispersive X-ray spectroscopy, as well as Raman spectroscopy. The fabricated GNP-SA has 1.8 % modulation depth and C-band transmission loss of less than 1.8 dB. The ring-configuration EDFL integrated with GNP-SA yields a mode-locking threshold of 22.6 mW pump power. Net anomalous dispersion of the laser cavity is validated by the observation of Kelly's sideband in the optical spectrum. At maximum pump power of 115.8 mW, the mode-locked EDFL has a pulse repetition rate of 13.11 MHz, sech 2 profile fitted pulse duration of 694 fs, peak-to-pedestal extinction ratio of 58.2 dB, average output power of 6.7 mW, and pulse energy of 507.2 pJ. Our proposed GNP-SA is feasible as a mode-locker for ultrashort pulsed fiber laser with advantage in terms of simple synthesis and fabrication technique.

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Revision on fiber dispersion measurement based on Kelly sideband measurement

Cited by 12 publications

References 8 publications

Tunable SESAM-Based Mode-Locked Soliton Fiber Laser in Linear Cavity by Axial-Strain Applied to an FBG

Tunable SESAM-Based Mode-Locked Soliton Fiber Laser in Linear Cavity by Axial-Strain Applied to an FBG

Study on Spectrum Shifting and Pulse Splitting of Mode-Locked Fiber Lasers Based on NPR Technology

Passively mode-locked ultrashort pulse fiber laser incorporating multi-layered graphene nanoplatelets saturable absorber

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