Passively Mode-Locked Ytterbium-Doped Fiber Laser With Cylindrical Vector Beam Generation Based on Mode Selective Coupler

Wan, Hongdan; Wang, Jie; Zhang, Zuxing; Wang, Jinzhang; Ruan, Shuangchen; Zhang, Lin

doi:10.1109/jlt.2018.2840489

Cited by 26 publications

(8 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Mode selective couplers (MSCs) are key components of future mode division multiplexing (MDM) optical networks [1,2], which could be used in a mode multiplexer/ demultiplexer [3][4][5][6][7], few-mode fiber lasers [8][9][10][11][12][13][14][15][16], etc. Usually, an MSC consists of a singlemode-fiber (SMF) and a few-mode-fiber (FMF) whose cores are brought close together.…”

Section: Introductionmentioning

confidence: 99%

Mode Coupling Analysis for a Mode Selective Coupler Using the Supermode Theory

Ren¹,

Wang²

2022

Photonics

View full text Add to dashboard Cite

In this paper, the mode selective coupler (MSC) is analyzed using the supermode theory. It is shown that all characteristic parameters of the MSC can be obtained using the propagation constants of the supermodes supported by the MSC structure. Simulation results show that the characteristic parameters calculated by the supermode theory match well with those calculated by the traditional coupled mode theory (CMT) near the phase matching point of the MSC structure. In practice, the propagation constants of the supermodes can be obtained using common finite element software directly, avoiding the complex double integral in the traditional CMT. This analysis based on the supermode theory gives a deeper insight into the characteristics of the MSC, providing a fast and accurate method for the analysis of MSCs, which is helpful for their design, fabrication and applications.

show abstract

Section: Introductionmentioning

confidence: 99%

Mode Coupling Analysis for a Mode Selective Coupler Using the Supermode Theory

Ren¹,

Wang²

2022

Photonics

View full text Add to dashboard Cite

show abstract

“…In 2017, Chen et al demonstrated an all-fiber actively mode-locked laser producing CVB pulses with high efficiency and a tunable repetition rate, where a two-mode long-period fiber grating (TM-LPFG) was introduced into the laser cavity as a mode converter and a two-mode fiber Bragg grating (TM-FBG) is used as a mode selector [18]. In 2018, Wan et al proposed a passively mode-locked CVB fiber laser using a mode selective coupler (MSC) as the transverse mode converter and a semiconductor saturable absorber mirror (SESAM) for mode-locking [19]. The pulse repetition rate is 18.58 MHz with the signal-to-noise ratio (SNR) of 52 dB.…”

Section: Introductionmentioning

confidence: 99%

All-Fiber High Efficiency Wavelength-Tunable Mode-Locked Cylindrical Vector Beam Laser

Lü

Yao

2022

IEEE Photonics J.

View full text Add to dashboard Cite

A wavelength-tunable mode-locked cylindrical vector beam (CVB) fiber laser with a dumbbell-shaped structure was proposed and demonstrated experimentally. A homemade broadband long-period fiber grating (LPFG) and a high-birefringence Sagnac fiber loop work as mode converter and comb filter respectively. The mode-locking mechanism is based on the nonlinear polarization rotation (NPR) effect. The central wavelength can be tuned from 1023.257 nm to 1046.123 nm with mode-locked operating state. The laser has a high slope efficiency of 15.75% with the modelocking threshold value of 232.5 mW at the central wavelength of 1041.361 nm. The mode-locked CVB pulses have a repetition rate of 7.06 MHz with the duration of 107 picoseconds. Radially and azimuthally polarized beams can be obtained by eliminating the degeneracy of LP 11 mode, with the purity of 94.86%. This CVB laser with controllable operating wavelength may have potential applications in mode division multiplexed (MDM) systems, optical manipulation, and electron acceleration.

show abstract

“…Dynamic mode manipulation should be considered during generating spatial high-order modes (HOMs) directly, which can greatly improve the practical utilities of these light sources. Static methods of generating spatial modes in optical fibers can be mainly classified into four categories: mode selective couplers (MSCs) [29][30][31], photonic lanterns [32][33][34], long-period gratings (LPGs) [35][36][37][38] and fiber Bragg gratings (FBGs) [39][40][41]. MSC employs tapering fused fibers to demonstrate mode coupling via evanescent field interactions.…”

Section: Introductionmentioning

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

View full text Add to dashboard Cite

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.

show abstract

Passively Mode-Locked Ytterbium-Doped Fiber Laser With Cylindrical Vector Beam Generation Based on Mode Selective Coupler

Cited by 26 publications

References 26 publications

Mode Coupling Analysis for a Mode Selective Coupler Using the Supermode Theory

Mode Coupling Analysis for a Mode Selective Coupler Using the Supermode Theory

All-Fiber High Efficiency Wavelength-Tunable Mode-Locked Cylindrical Vector Beam Laser

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

Contact Info

Product

Resources

About