Wavelength-switchable fiber laser based on few-mode fiber filter with core-offset structure

Qi, Yanhui; Kang, Zexin; Sun, Jian; Ma, Lin; Jin, Wenxing; Lian, Yudong; Jian, Shuisheng

doi:10.1016/j.optlastec.2016.01.022

Cited by 62 publications

(23 citation statements)

References 25 publications

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“…Taking advantage of the spectral tunability, wavelength tunable fiber laser has been proved as a potential seed laser source benefiting numerous applications in optical communication [173], optical sensing [174], materials processing [175], spectroscopy [176] and signal processing [177]. Generally, a tunable spectral filter is required to achieve the lasing wavelength tuning ability such as Fabry-Perot interferometer (FPI) [178,179], Mach-Zehnder interferometer (MZI) [180], graphene-coated filter [181], chirped FBG [182], W-shape LPG [183] and fiber birefringence filter [184,185].…”

Section: Wavelength Tunable Mode-locked Fiber Laser Via Aomcmentioning

confidence: 99%

Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

Shi

et al. 2020

Nanophotonics

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The burgeoning advances of spatial mode conversion in few-mode fibers emerge as the investigative hotspot in novel structured light manipulation, in that, high-order modes possess a novel fundamental signature of various intensity profiles and unique polarization distributions, especially orbital angular momentum modes carrying with phase singularity and spiral wave front. Thus, control of spatial mode generation becomes a crucial technique especially in fiber optics, which has been exploited to high capacity space division multiplexing. The acousto-optic interactions in few-mode fibers provide a potential solution to tackle the bottleneck of traditional spatial mode conversion devices. Acousto-optic mode conversion controlled by microwave signals brings tremendous new opportunities in spatial mode generation with fast mode tuning and dynamic switching capabilities. Besides, dynamic mode switching induced by acousto-optic effects contributes an energy modulation inside a laser cavity through nonlinear effects of multi-mode interaction, competition, which endows the fiber laser with new functions and leads to the exploration of new physical mechanism. In this review, we present the recent advances of controlling mode switch and generation employing acousto-optic interactions in few-mode fibers, which includes acousto-optic mechanisms, optical field manipulating devices and novel applications of spatial mode control especially in high-order mode fiber lasers.

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Section: Wavelength Tunable Mode-locked Fiber Laser Via Aomcmentioning

confidence: 99%

Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

Shi

et al. 2020

Nanophotonics

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“…The LP01 and LP02 modes are circumferentially symmetric distributions, which can be stimulated at the input splicing point between the SMF and FMF [23,29]. As the LP01 and LP02 modes have different effective refractive indices (n1 = 1.44548 and n2 = 1.44425, respectively) in the 2-µm band, a Mach-Zehnder interferometer (MZI) forms at the output splicing point between the FMF and the SMF [30]. Therefore, the transmittance of the cascaded interferometer filter (CIF) including two SFS fiber interferometers (SFS-FIs) is extensively analyzed as follows.…”

Section: Introductionmentioning

confidence: 99%

Stable Multi-Wavelength Thulium-Doped Fiber Laser With Two Cascaded Single-Mode-Four-Mode-Single-Mode Fiber Interferometers

et al. 2021

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“…To date, various comb filters such as two cascaded Sagnac loops [15], a Sagnac loop incorporating two-stage polarization maintaining fibers [16], a Sagnac loop combining a multimode interference filter [17], a micro-fiber-optic Fabry-Perot interferometer (FPI) [18], a non-adiabatic tapered fiber [19], and sampled fiber Bragg gratings [20] have been proposed for achieving 2-μm band multi-wavelength lasing output in TDFLs. Recently, the few-mode fiber has attracted much attention due to its many applications such as mode-division multiplex (MDM) transmission systems [21], tunable fiber lasers [22], and fiber sensors [23], [24]. In particular, switchable multi-wavelength fiber lasers in 1.55-μm band based on few-mode fibers have been studied extensively [25]- [29].…”

Section: Introductionmentioning

confidence: 99%

Switchable Multi-Wavelength Thulium-Doped Fiber Laser Using Four-Mode Fiber Based Sagnac Loop Filter

et al. 2020

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A switchable multi-wavelength thulium-doped fiber laser (TDFL) using a fourmode fiber based Sagnac loop filter was proposed and demonstrated. The Sagnac loop, incorporating a 4.8 m long four-mode step-index fiber, acting as a comb filter was analyzed theoretically and experimentally. By adjusting two polarization controllers, eight stable single-wavelength operations and five stable dual-wavelength operations were obtained with easy switching between the different operation modes. The wavelength range covered during the single-wavelength switchable operation with a signal-to-noise ratio of up to 55 dB was ∼28.51 nm. In dual-wavelength switchable operation, the maximum and minimum wavelength spacings were ∼21.78 nm and ∼1.50 nm, respectively. Due to the abundant wavelength resources, the proposed TDFL has great potential in wavelength division multiplexing free-space optical communications, optical fiber sensing, and photonic generation of microwave signals.

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Wavelength-switchable fiber laser based on few-mode fiber filter with core-offset structure

Cited by 62 publications

References 25 publications

Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

Stable Multi-Wavelength Thulium-Doped Fiber Laser With Two Cascaded Single-Mode-Four-Mode-Single-Mode Fiber Interferometers

Switchable Multi-Wavelength Thulium-Doped Fiber Laser Using Four-Mode Fiber Based Sagnac Loop Filter

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