The overall goal of photonics research is to understand and control light in new and richer
ways to facilitate new and richer applications. Many major developments to this end have …

We report a hollow-core photonic crystal fiber that is engineered so as to strongly suppress
higher-order modes, ie, to provide robust LP_01 single-mode guidance in all the wavelength …

Maintaining high fundamental mode purity in low‐loss single‐ring hollow‐core photonic
crystal fiber remains a key challenge. Here a double‐clad anti‐resonant‐reflecting design is …

Abstract van der Waals (vdW) crystals are promising candidates for integrated phase
retardation applications due to their large optical birefringence. Among the two major types …

A hollow-core single-ring photonic crystal fiber (SR-PCF) consists of a ring of capillaries
arranged around a central hollow core. Spinning the preform during drawing introduces a …

The fast and reliable analysis of the natural gas composition requires the simultaneous
quantification of numerous gaseous components. To this end, fiber-enhanced Raman …

A narrow bandwidth (2GHz) π-phase-shift flattop fiber Bragg grating (FBG) is proposed to
achieve Brillouin optical time-domain analysis (BOTDA) for perfluorinated graded-index …

Higher-order modes and hollow-core waveguides are highly relevant research directions in
photonics, while most studies are solely focused on fundamental modes. This work …

In 1964 Bloembergen and Shen predicted that Raman gain could be suppressed if the rates
of phonon creation and annihilation (by inelastic scattering) exactly balance. This is only …

Second-order nonlinearity is induced inside a Xe-filled hollow-core photonic crystal fiber
(PCF) by applying an external dc field. The system uniquely allows the linear optical …