Generation of Femtosecond Optical Vortex Beams in All-Fiber Mode-Locked Fiber Laser Using Mode Selective Coupler

Wang, Teng; Wang, Feng; Shi, Fan; Pang, Fufei; Huang, Sujuan; Wang, Tingyun; Zeng, Xianglong

doi:10.1109/jlt.2017.2676241

Cited by 155 publications

(60 citation statements)

References 46 publications

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“…At present, vortex beams in the fiber lasers have been demonstrated because of the promising applications in the quantum optics, 188 optical micromanipulation, 189 rotation detection, 190 WDM (modedivision multiplexing) systems, 191 and nonlinear fiber optics. 192 In the fiber systems, the vortex beams are generally realized by the modulating elements, including the mode selective couplers, 193,194 long period fiber gratings, 195,196 and microstructured fiber facets. 197 The mode-locked vortex beams through the mode fibers in the all-fiber lasers have been reported.…”

Section: Rogue Waves Induced By the Optical Vortex Beams In The Fibermentioning

confidence: 99%

Recent progress on optical rogue waves in fiber lasers: status, challenges, and perspectives

Song

Wang

et al. 2020

Adv. Photon.

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Rogue waves (RWs) are rare, extreme amplitude, localized wave packets, which have received much interest recently in different areas of physics. Fiber lasers with their abundant nonlinear dynamics provide an ideal platform to observe optical RW formation. We review recent research progress on rogue waves in fiber lasers. Basic concepts of RWs and the mechanisms of RW generation in fiber lasers are discussed, along with representative experimental and theoretical results. The measurement methods for RW identification in fiber lasers are presented and analyzed. Finally, prospects for future RW research in fiber lasers are summarized.

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Section: Rogue Waves Induced By the Optical Vortex Beams In The Fibermentioning

confidence: 99%

Recent progress on optical rogue waves in fiber lasers: status, challenges, and perspectives

Song

Wang

et al. 2020

Adv. Photon.

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“…An optical circulator assures unidirectional operation. The outer ring cavity consists of the MKR (with a red ring structure in the picture), PC3, and an SMF and FMF coupler (coupling ratio 90:10), which is used to convert LP 01 mode to high-order LP 11 mode [26,27]. The output spectrum is analyzed by an optical spectrum analyzer (OSA, YOKOGAWA, AQ6370C) and the output beam profiles are recorded using a CCD camera (InGaAs camera, Model C10633-23 from Hamamatsu Photonics).…”

Section: Methodsmentioning

confidence: 99%

“…However, to the best of our knowledge, there have been few reports about a multiwavelength switchable fiber laser with vortex beams. In our prior work, a single-mode fiber (SMF) and few-mode fiber (FMF) coupler was first proposed to overcome the constraint of broadband mode conversion [26,27], which is a promising method to produce efficient femtosecond OVBs. By using a similar fiber mode coupler, cylindrical vector beams with a switchable dual-wavelength pulsed laser were also presented [28].…”

Section: Introductionmentioning

confidence: 99%

Wavelength-switchable vortex beams based on a polarization-dependent microknot resonator

et al. 2018

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We experimentally demonstrated a method of generating continuously wavelength-switchable optical vortex beams (OVBs) in an all-fiber laser. A polarization-dependent microknot resonator (MKR) functions as comb filter and accounts for the narrow linewidth (0.018 nm) of multiwavelength channels. The wavelength interval corresponds to the free spectral range of the MKR. We exploit a fused SMF-FMF (single mode fiber-few mode fiber) mode coupler to obtain broadband mode conversion and successfully achieve multiwavelength switchable OVBs. As far as we know, this is the first report about identical multiwavelength vortex beams with topological charges of 1. It has been verified that each channel of the vortex beams preserves the same orbital angular momentum (OAM) properties through their clear spiral interferograms. Multiwavelength vortex beams with identical OAM properties are desirable for multiplexing, exchanging, and routing to further improve the capacity of optical fiber transmission.

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“…Based on the combination of a few-mode fibe and a SMF, Ismaeel et al [24] demonstrated a MSC with relatively simple configuratio and fabrication process, which can excite specifi higher-order modes with high efficien y and purity. Recently, femtosecond [25] CVB pulse generation from modelocked fibe laser based on nonlinear polarization rotation effect and nanosecond [26] CVB pulse generation from mode-locked fibe laser based on nonlinear amplifie loop mirror have been reported based on the MSCs with SMF and TMF. Therefore, MSC composed of both SMF and few-mode fibe can convert the fundamental mode in SMF to the higher-order modes in few-mode fibe with high conversion efficien y and broad conversion bandwidth.…”

mentioning

confidence: 99%

Switchable Dual-Wavelength Cylindrical Vector Beam Generation From a Passively Mode-Locked Fiber Laser Based on Carbon Nanotubes

Zhang

Cai

Wang

et al. 2018

IEEE J. Select. Topics Quantum Electron.

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Abstract-Cylindrical vector beams (CVBs) with axial symmetry in both polarization and field intensity have attracted much attention because of their unique optical properties. Conventional methods to obtain CVBs including direct modulation of light beams in free space and high-order mode excitation by offset splicing single-mode fiber with few-mode fiber usually works at single wavelength with rather narrow bandwidth. Here, for the first time to the best of our knowledge, we demonstrate switchable dual-wavelength CVB generation from a passively mode-locked fiber laser using carbon nanotubes as saturable absorber for mode-locking and a home-made mode-selective coupler as both mode converter and birefringence filter. In experiments, the mode-locked fiber laser delivers CVB pulses of dual-wavelength (1532.5 nm and 1555.5 nm) and corresponding single wavelength with duration of hundreds of femtosecond, respectively. Moreover, the output polarization status is switchable between radially and azimuthally polarized states. The mode-locked CVBs with wavelength and polarization flexibility may have potential applications in mode-division multiplexing optical fiber communication, nanoparticle manipulation, material processing, nonlinear optics, and so on.

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Generation of Femtosecond Optical Vortex Beams in All-Fiber Mode-Locked Fiber Laser Using Mode Selective Coupler

Cited by 155 publications

References 46 publications

Recent progress on optical rogue waves in fiber lasers: status, challenges, and perspectives

Recent progress on optical rogue waves in fiber lasers: status, challenges, and perspectives

Wavelength-switchable vortex beams based on a polarization-dependent microknot resonator

Switchable Dual-Wavelength Cylindrical Vector Beam Generation From a Passively Mode-Locked Fiber Laser Based on Carbon Nanotubes

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