Optic fiber modes

In this work, we design circular lattice photonic crystal fibers using Lumerical Mode Solution software, its hollow core filled with carbon tetrachloride. Optical properties including effective refractive index, chromatic dispersion, nonlinearity, and fiber loss were investigated numerically in detail based on solving Maxwell's wave equations.

14p viambani 18-06-2024 2 1   Download

In this work, the dispersion properties and nonlinear properties of circular photonic crystal fibers were improved by a combination of carbon tetrachloride infiltration into the core and modification of the air hole diameters d1 and d2 of rings in the cladding.

16p viamancio 04-06-2024 1 0   Download

This paper presents a new design of Ge20Sb5Se75 large-solid-core- square lattice photonic crystal fiber (PCF) with the first ring of air hole near the core removed. Using the full vector finite element method for anisotropic perfectly matched layers, we numerically examine the dispersion characteristics of the PCF as a function of the wavelength in the mid-infrared range.

10p dianmotminh02 03-05-2024 3 1   Download

Rapid chemical detection of drugs of abuse in biological fluids such as blood and saliva is a concern within medicine and law enforcement. As an outcome, a label-free detection platform takes biological fluid samples with concentrations ranging from extremely high to very low.

12p viberbers 09-08-2023 6 3   Download

This study proposes a photonic crystal fiber made of fused silica glass, with the core infiltrated with chloroform as a new source of supercontinuum (SC) spectrum. We numerically study the guiding properties of the fiber structure in terms of characteristic dispersion and mode area of the fundamental mode.

9p vispiderman 15-06-2023 6 1   Download

This proposed sensor is used in wavelength interrogation method, in which the D-shaped FBG is applied as a refractive index (RI) sensing probe and a mirror to select mode of laser. The sensor is run by monitoring the wavelength shift of selected laser mode.

10p vispiderman 15-06-2023 7 2   Download

In recent years, the application of multi-wavelength low-level laser therapy for some acute and chronic diseases and improving the quality of treatment has brought a lot of positive achievements in medicine. It is increasingly popular in both experimental and clinical trials. It is highly demanded to design and develop phototherapy laser devices for specific applications.

8p viharry 15-12-2022 4 3   Download

Lecture Advanced computer architecture: Lesson 44. The main topics covered in this chapter include: multimode fiber, single mode fiber, switched twisted pair, switched optical fiber, connection oriented communication, connectionless communication, three network topologies, 7-layer OSI model,...

19p wangziyi_1307 26-04-2022 36 3   Download

Lecture Data Communication: Lesson 26 present the content: guided media, optical fiber cable, unguided media, radio frequency allocation, propagation of radio waves, single mode fiber, fiber sizes, cable composition, light sources,...

19p bachdangky 06-09-2021 6 1   Download

The characteristics of photonic crystal fibers (PCFs) with various air hole diameters infiltrated with alcoholic liquids such as ethanol, methanol, propanol and butanol are numerically investigated. Based on the numerical results, we have analyzed and compared in detail the characteristics of these fibers including effective refractive index, effective mode area, dispersion and confinement loss for two sets of parameters {d,Λ} = {1 µm,5 µm} and {1.42 µm, 3.26 µm}, with d the air hole diameter and Λ the lattice constant, respectively.

12p nguyenxuankha_bevandan 14-08-2020 22 4   Download

In this paper, we report a numerical calculation of the influence of structural parameters on the supercontinuum generation of photonic crystal fibers. A photonic crystal fiber based on the fused silica glass, eight rings of air holes ordered in a hexagonal lattice, is proposed. Guiding properties in terms of dispersion and confinement loss of the fundamental mode are also studied numerically. As a result, the broadband width of the supercontinuum spectrum will increase when the lattice pitch decreases or the diameter of air hole in the cladding increases.

8p kethamoi6 01-07-2020 27 3   Download

In this paper, the configuration of BK7- glass photonic crystal fiber with a regular hexagonal lattice with air holes of different diameter and the field distribution of fundamental mode are simulated by Lumica - Mode Solutions. Some optical properties are numerically studied by finite element method and discussed.

6p thithizone 16-07-2019 12 0   Download

We consider a model of a passively mode-locking fiber ring laser bult using a saturable absorber and a chirped fiber Bragg grating to balance dispersion and nonlinearity. The evolution of the slowly envelope of the optical field in a loop fiber subject to dispersion , Kerr nonlinearity, frequency- chirp and nonlinear absorption is given by the generalized complex Ginzburg-Landau equation. The influence of the frequency-chirp on the pulse is simulated and discussed, and the stationary conditions concerning the chirp parameter are found out for our laser.

7p thuyliebe 12-10-2018 19 1   Download

In this paper we review our works in the field of nonlinear optics in waveguide arrays (WAs) and photonic nanowires. We first focus on the new equation governing light propagation in optical fibers with sub-wavelength cores which simultaneously takes into account (i) the vector nature of the electromagnetic modes inside fibers, (ii) the strong dispersion of the nonlinearity inside the spectral body of the pulse, (iii) and the full variations of the vector mode profiles with frequency.

22p thuyliebe 08-10-2018 56 0   Download

The sign of the chirality per unit energy of a HE or EH mode is the same as or opposite to, respectively, the sign of the phase circulation direction. When the fiber radius is large enough, the field in a quasicircularly polarized hybrid mode can be superchiral outside the fiber. In particular, outside a fiber with a radius of 600 nm, the fields in the quasicircularly polarized HE11, HE21, and HE31 modes are superchiral.

13p thuyliebe 08-10-2018 51 0   Download

The book opens with a section on recent advances in analytical methods. Dr. Kang Bongsu contributed a chapter that presents an alternative technique for the free and forced vibration analysis of one-dimensional distributed parameter systems. This approach is based on the idea of superimposing the amplitudes of the constituent travelling waves, rather than the traditional approach of normal mode expansion that relies on the apriori calculation of eigensolutions or assumed normal modes.

462p lulanphuong 30-03-2012 66 8   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Application of Single-Mode Fiber-Coupled Receivers in Optical Satellite to High-Altitude Platform Communications

7p dauphong16 20-02-2012 44 3   Download

Single and 50 or 62.5 Multi mode color coded fibers, jelly filled color coded loose tubes, PE filler (if required), water swellable yarn around the central strength member, SZ-stranded around the dielectric CSM, water swellable tape, outer strength member, inner PE jacket, water swellable tape, corrugated steel tape armor and outer PE jacket.

8p vinhnghi 27-08-2009 93 3   Download

Brad Booth is a senior principal engineer at Applied Micro Circuits Corporation (AMCC) and drives alignment of AMCC strategic planning to industry initiatives and standards. Previously, Brad was the director of advanced products for Quake Technologies and the manager of Intel’s Enterprise Interconnect Standards Team. Brad chaired the IEEE Std. 802.3an™-2006 (10GBASE-T) project, which developed a standard for 10 Gigabit Ethernet over twisted-pair balanced copper cabling. Prior to that, Brad was the editor-in-chief for IEEE Std. 802.3ae™-2002 for 10 Gigabit Ethernet on fiber optic cabling.

4p mylinh 13-08-2009 79 3   Download

The Soneplex Single Fiber Quad Loop Extender (WQLX) module converts four multiplexed DS1 signals into an optical DS2 using wave division multiplexing (WDM) optics. Similar to ADC’s Quad Loop Extender (QLX), the WQLX transports the signal over single mode fiber, but uses only one fiber instead of two. The same module is also used at the remote end to convert the optical DS2 back into four DS1s at the customer premises.

4p thuyvan 13-08-2009 69 5   Download