Mode-selective amplification in a large mode area Yb-doped fiber using a photonic lantern

Wittek, Steffen; Bustos-Ramirez, Ricardo; Zacarias, J. Alvarado; Eznaveh, Z. Sanjabi; Bradford, Joshua; Galmiche, G. Lopez; Zhang, D.; Zhu, Wenying; Antonio-López, Jose Enrique; Shah, Lawrence; Correa, Rodrigo Amezcua

doi:10.1364/ol.41.002157

Cited by 19 publications

(11 citation statements)

References 19 publications

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“…Exceptions to this would be the high‐power vector modes, for example, from disk lasers and fiber lasers, reaching up to 1.2 GW of peak power and 3 kW in average power, respectively. The use of new materials, including metasurfaces, could overcome this limitation in the future and have been suggested as a means to structuring light, but more likely is the need for structured light amplifiers, a topic that is only recently starting to received attention . Here the challenge is twofold: 1) to ensure a sufficiently uniform gain so that the spatially structured amplified is not restructured by gain and 2) to ensure that thermal effects do not alter the structured phase by imparting global aberrations on the wavefront.…”

Section: Discussionmentioning

confidence: 99%

Structured Light from Lasers

Forbes

2019

Laser & Photonics Reviews

248

126

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Structured light is derived from the ability to tailor light, usually referring to the spatial control of its amplitude, phase, and polarization. Although a venerable topic that dates back to the very first laser designs, structuring light at the source has seen an explosion in activity over the past decade, fuelled by a modern toolkit that exploits the versatility of diffractive structures, liquid crystals, metasurfaces/metamaterials, and exotic laser geometries, as well as a myriad of applications that range from imaging, microscopy, and laser material processing to optical communication. Here, the recent progress in creating and controlling structured light is reviewed, with particular emphasis on structuring light at the source: structured light lasers. The various design approaches, including pump shaping, cavity geometries, and the use of custom intracavity optical elements, implemented in a variety of lasers from microchip solutions to high‐power fibers are covered in a tutorial style. The history and latest developments in the field are reviewed, elucidating the various structured light patterns that have been created from lasers, including orbital angular momentum and vector states of light. Finally, the present challenges and limitations are highlighted, along with comments on likely future trends.

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Section: Discussionmentioning

confidence: 99%

Structured Light from Lasers

Forbes

2019

Laser & Photonics Reviews

248

126

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“…Photonic lanterns were initially employed as non-mode selective scenes such as astronomical applications [444] or mode multiplexers [445,446]. Until 2016, related studies began to develop the ability of active feedback to stabilize the fundamental mode output from a multimode fiber by appropriately launching the correct superposition of input modes in both phase and amplitude [443,[441][442][443][444][445][446][447][448][449][450]. At first, mode controllable output from a two-mode fiber amplifier that reaches several watts was realized based on the selective mode amplification in a photonic lantern [447].…”

Section: Photonic Lanternmentioning

confidence: 99%

Functional Fibers and Functional Fiber-Based Components for High-Power Lasers

et al. 2022

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The success of high-power fiber lasers is fueled by maturation of active and passive fibers, combined with the availability of high-power fiber-based components. In this contribution, we first overview the enormous potential of rare-earth doped fibers in spectral coverage and recent developments of key fiber-based components employed in high-power laser systems. Subsequently, the emerging functional active and passive fibers in recent years, which exhibit tremendous advantages in balancing or mitigating parasitic nonlinearities hindering high-power transmission, are outlined from the perspectives of geometric and material engineering. Finally, novel functional applications of conventional fiber-based components for nonlinear suppression or spatial mode selection, and correspondingly, the high-power progress of function fiber-based components in power handling are introduced, which suggest more flexible controllability on high-power laser operations. Graphical abstract

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“…In general, MSPLs are passive all-fiber devices capable of efficiently multiplexing singlemode inputs and converting each input into a specific LP mode. Among other applications, the PL has great potential for space-division multiplexing (SDM) [22][23][24], as well as spatial mode control for high power fiber amplifiers [25]. In general, a PL consist of a set of single mode fibers (SMFs) inserted into a capillary tube whose index of refraction is lower than the refractive index of the SMF cladding.…”

Section: Principle and Experimental Setupmentioning

confidence: 99%

Transverse mode-switchable fiber laser based on a photonic lantern

et al. 2018

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We propose and experimentally demonstrate an intra-cavity transverse modeswitchable fiber laser based on a mode-selective photonic lantern and a few-mode Er-doped fiber amplifier. The six lowest-order LP modes can lase independently and are switchable by changing the input port of the photonic lantern. We measured the slope efficiency, mode intensity profile, and optical spectrum of each lasing mode. In addition, we demonstrate donut-shaped LP 11 and LP 21 modes using incoherent superposition and simultaneous lasing of the two degenerate modes.

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Mode-selective amplification in a large mode area Yb-doped fiber using a photonic lantern

Cited by 19 publications

References 19 publications

Structured Light from Lasers

Structured Light from Lasers

Functional Fibers and Functional Fiber-Based Components for High-Power Lasers

Transverse mode-switchable fiber laser based on a photonic lantern

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