One of the new methods of fiber optics uses cladding modes for controlling propagation of
radiation in optical fibers. This paper reviews the results of studies on the propagation …

This paper presents a systematic review of long period fiber gratings (LPFGs) written by the
CO 2 laser irradiation technique. First, various fabrication techniques based on CO 2 laser …

In this paper, comprehensive remarks are given that focus on the main fabrications and wide
applications of helical long-period fiber gratings (HLPGs). Firstly, the techniques of …

Frozen-in stresses and strains can significantly impact both the optical and mechanical
performance of optical fibers, enabling unique functionalities or leading to serious …

An asymmetric long period fiber grating (LPFG) with a large attenuation of− 47.39 dB and a
low insertion loss of 0.34 dB is fabricated by use of focused CO 2 laser beam to carve …

A novel fibre-optic torsion sensor based on a long-period fiber grating written by high-
frequency CO2 laser pulses is proposed and has been demonstrated. Such a torsion sensor …

Widely used descriptions and relationships for birefringence and polarization-dependent
loss (PDL), developed primarily for ultraviolet-induced long-period fiber gratings (LPFGs) …

In this work, we report about our recent results concerning the fabrication of Long Period
Grating (LPG) sensors in several optical fibers, through the Electric Arc Discharge (EAD) …

It is demonstrated, for the first time to our knowledge, that torsion characteristics of resonant
wavelength of long-period fiber gratings (LPFGs) induced by high-frequency CO2 laser …

A novel concept of individually switchable and widely tunable erbium-doped
multiwavelength fiber laser (MWFL) is proposed and experimentally demonstrated. The key …