Investigating the effect of orientation of polarization maintaining

A unique setup making use of PM-FBG in edge filtering configuration with an additional polarizing beam splitter was utilized to study the effect of the polarization direction of the optical wave

Liquid Crystal Polarization Gratings Operating Principles

Just as a linearly varying birefringence can be used to make a polarization-sensitive diffractive wedge (i.e., grating), a radially varying birefringence can be patterned to make a polarization-sensitive

Optical fiber grating sensors and methods of manufacture

Bragg gratings may be written at a same or nearly same axial position for all optical fibers in the configuration and may be written at the same time and may have a substantially equal index of

Polarization properties of chiral fiber gratings

One goal of this paper is to investigate the polarization properties of single- and double-helical chiral fiber gratings and to explain why the former is polarization insensitive while...

OPTCON Vol. 5 Iss. 2

Fiber Optics and Optical Communications Highly tunable and versatile dual-wavelength fiber laser based on optofluidic tuning of multimode interference filters Daniel A. May-Arrioja, José E. Antonio-Lopez,

Statistical Evaluation of PAM4 Data Center Interconnect System With

Data center interconnect (DCI) links with high data-rate direct-detection require strict chromatic dispersion compensation. One such solution which has been widely deployed is based on

Compact 980-nm All-Polarization-Maintaining Dispersion

An all-polarization-maintaining (PM) figure-9 mode-locked Tm-doped fiber laser that leverages a nonlinear amplifying loop mirror (NALM) incorporated with a chirped fiber Bragg grating

Turning Fiber into a Sensing System: The Magic of

Imagine a world where the Internet doesn''t just connect but senses—detecting earthquakes, monitoring battery health, or safeguarding

Topic Categories | Optica

Light propagation and dynamic effects in fibers Nonlinear effects, polarization and spatial modes, acousto-optic, thermo-optic, opto-mechanical effects. Fiber characterization, diagnostic and

Characterization of two-color ultrashort laser pulses using

In this work, we demonstrate that a full characterization is possible using the well-known transient-grating (TG) or polarization-gating (PG) frequency-resolved optical gating (FROG) techniques, and

Arc-Induced Long Period Gratings from Standard to Polarization

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) technique.

An actively Q-switched multi-wavelength ytterbium fiber laser with

Abstract In this paper, we investigate the multi-wavelength lasing characteristics of an actively Q-switched ytterbium-doped fiber laser with two cascaded polarization maintaining fiber

Optical Phase/Frequency Demodulation using Polarization

Our technique exploits the reflection characteristics of fiber Bragg gratings written in polarization-maintaining fibers to create a frequency discriminator, which is able to convert PM/FM signals into

Spectral response of polarization properties of fiber Bragg grating

A study of the spectral characterization of polarization properties of locally pressed fiber Bragg grating (FBG) is presented. The evolutions of the first Stokes (s1) parameter of a FBG as

Polarization-Insensitive Variable Optical Attenuator and Wavelength

We demonstrate a variable optical attenuator (VOA) based on liquid crystal polarization gratings (LCPGs), which eliminates the need for complex polarization management found in

Volume current method for analysis of tilted fiber gratings

An analytic approach to calculate the radiation pattern (including the wavelength dependence, azimuthal distribution, and polarization dependence) of tilted fiber phase gratings using

Wiley Online Library | Scientific research articles, journals, books

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Bragg Gratings in Optical Fibers: Fundamentals and Applications

Today optical fibers are synonymous with the word “telecommunication”. In addition to applications in telecommunications, optical fibers are also utilized in the rapidly growing field of fiber sensors.

Polarization mode coupling and related effects in fiber Bragg grating

Abstract: Polarization mode coupling (PMC) and related effects from writing fiber Bragg gratings in polarization maintaining fiber (FBGs-in-PMF) are observed experimentally for the first time by optical

Distributed Birefringence Measurement of a Polarization

Mentioning: 1 - A distributed birefringence measurement of a polarization-maintaining fiber (PMF) can be realized by using a Brillouin dynamic grating (BDG). However, the pump depletion decreases the

Experimental Demonstration of Efficient and Polarization-Diversity

Two-dimensional (2D) diffractive gratings offer a polarization-independent coupling solution between optical fibers and photonic integrated circuits, with advantages including placement

Optimizing photonic device performance with tunable tilted dual-mode

Dual-mode tilted fiber Bragg gratings (TFBGs) have become pivotal in optical sensing applications due to their enhanced light coupling from the core fundamental mode to higher-order

Polarization Effects Unique to Optical Fiber Systems

The reflection coefficients for the polarization states perpendicular and parallel to the plane of incidence are different if the angle of incidence is not normal. In particular, fiber Bragg gratings are often used

Spectral Properties of Locally Pressed Fiber Bragg Gratings Written in

In this work, we analyze the spectral properties of locally pressed fiber Bragg gratings (FBGs) written into polarization maintaining fibers. We study the evolution of the spectral response of

Determination of Optical Fiber Parameters Based On Fiber Gratings

We demonstrated a new method to determine the optical fiber parameters using long-period fiber gratings and a search procedure. The gratings with different pitches were inscribed to

10 FIber gratings: principles, fabrication and properties

In the next part of the chapter, the various grating types which have been demonstrated so far are introduced and their basic characteristics are discussed. The final part of the chapter gives the inftu

Cryogenic temperature sensor based on fiber optic Sagnac

Abstract Accurate measurement of cryogenic temperature is crucial for various scientific and technological applications. In this paper, we experimentally investigated a fiber optic cryogenic

Design of Polarization-Insensitive Optical Fiber Probe Based on

When using an optical fiber probe to measure the properties of anisotropic optical materials, some form of polarization controller is required to compensate for the inherent