Deterministic Transfer of Large-Scale β-Phase Arsenic on Fiber End Cap for Near-Infrared Ultrafast Pulse Generation

Abstract

Gray arsenic (β-phase) has aroused great attention in photonics and electronics applications, as a novel family member of two-dimensional (2D) elemental crystals of group-VA. Here, β-phase arsenic (β-As) bulk crystals were synthesized via the chemical vapor transport (CVT) method. Meanwhile, large-scale β-As nanoflake was transformed using the polydimethylsiloxane (PDMS)-assisted dry transfer method and was placed on the end cap of optical fiber with high coverage over the core area. Moreover, the β-As was used as a saturable absorber in ytterbium-doped fiber ring cavity resonance, and we demonstrated near-infrared ultrafast pulse fiber laser with the central wavelength, repetition rate, and signal-to-noise ratio (SNR) of 1,037.3 nm, 0.6 MHz, and 67.7 dB, respectively. This research demonstrates a 2D material small area deterministic transfer method and promotes the potential application of group-VA crystals in near-infrared ultrafast laser generation.

Recent advances in stable arsenic–phosphorus: preparation, properties, and application

“…In particular, materials composed of elements in the VA group (e.g. P, As, Sb, Bi) possess unique electrical transport properties, outstanding carrier mobilities, topological transmission states, and negative Poisson's ratio, which give them great potential in next-generation applications for functional devices [12][13][14][15]. Of these, BP is a rising-star: numerous initial theoretical and experimental investigations have taken place owing to its distinctive structures, intriguing anisotropic properties, and multiple modulation methods [16].…”