High Spatial Resolution Distributed Fiber Sensor Using Raman Scattering in Single-Mode Fiber

2010 ◽  
Author(s):  
Shellee D. Dyer ◽  
Burm Baek ◽  
Sae Woo Nam ◽  
Michael G. Tanner ◽  
Robert H. Hadfield
Keyword(s):  
Raman Scattering ◽  
Spatial Resolution ◽  
High Spatial Resolution ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Fiber Sensor

Refractive index and temperature sensing characteristics of an optical fiber sensor based on a tapered single mode fiber/polarization maintaining fiber

2016 ◽  
Vol 14 (5) ◽  
pp. 050604-50608
Author(s):  
Zaihang Yang Zaihang Yang ◽  
Hao Sun Hao Sun ◽  
Tingting Gang Tingting Gang ◽  
Nan Liu Nan Liu ◽  
Jiacheng Li Jiacheng Li ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Temperature Sensing ◽  
Fiber Sensor ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Sensing Characteristics

scholarly journals Distributed Fiber Birefringence Measurement Using Pulse-Compression Φ-OTDR

2020 ◽  
Author(s):  
Yongxiang Chen ◽  
Yun Fu ◽  
Ji Xiong ◽  
Zinan Wang
Keyword(s):  
Spatial Resolution ◽  
Pulse Compression ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Time Domain Reflectometry ◽  
Coherent Detection ◽  
Compression Phase ◽  
Optical Time Domain Reflectometry ◽  
Fiber Birefringence ◽  
Optical Time

Abstract In this paper, a novel birefringence measurement method through the Rayleigh backscattered lightwave within single-mode fiber is proposed, using a single chirped-pulse with arbitrary state of polarization. Numerical analysis is carried out in detail, then pulse-compression phase-sensitive optical time domain reflectometry (PC-Φ-OTDR) with polarization-diverse coherent detection is employed to verify this method. A 2km spun single-mode fiber is tested with 8.6 cm spatial resolution, and the average birefringence of the fiber under test is measured as 0.234rad/m, which is consistent with previous literatures about single-mode fiber. Moreover, the relationship between the measured birefringence and the spatial resolution is also studied for the first time, and the results show that spatial resolution is crucial for fiber birefringence measurement.

Single-mode fiber sensor based on core-offset splicing

2011 ◽  
Author(s):  
Mei Zhou ◽  
Shenglai Zhen ◽  
Fei Liu ◽  
Jun Peng ◽  
Ling Li ◽  
...  
Keyword(s):  
Single Mode ◽  
Single Mode Fiber ◽  
Fiber Sensor

scholarly journals Optimization of a DPP-BOTDA sensor with 25 cm spatial resolution over 60 km standard single-mode fiber using Simplex codes and optical pre-amplification

2012 ◽  
Vol 20 (7) ◽  
pp. 6860 ◽  
Author(s):  
Marcelo A. Soto ◽  
Mohammad Taki ◽  
Gabriele Bolognini ◽  
Fabrizio Di Pasquale
Keyword(s):  
Spatial Resolution ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Simplex Codes

scholarly journals Broadband CARS Microscopy

2004 ◽  
Vol 12 (6) ◽  
pp. 38-41 ◽  
Author(s):  
Marcus T. Cicerone ◽  
Tak W. Kee
Keyword(s):  
Raman Scattering ◽  
Optical Microscopy ◽  
Spatial Resolution ◽  
Cross Sections ◽  
High Spatial Resolution ◽  
Natural Form ◽  
Ir Microscopy ◽  
Scattering Cross ◽  
Cars Microscopy ◽  
Scattering Cross Sections

A major challenge in optical microscopy is to develop techniques with high spatial resolution, sensitivity, and chemical specificity. The latter, chemical specificity, is typically achieved through some form of labeling, which has potential to alter the nature of the sample under investigation. Raman or infrared (IR) microscopy can be utilized to image samples in their natural form using molecular vibrations as a contrast mechanism. IR microscopy suffers from spatial resolution issues, and spontaneous Raman microscopy suffers from low scattering cross-sections, so that high laser power is often required, introducing the possibility of sample photo-damage. Scattering cross-sections for Coherent Anti-Stokes Raman Scattering (CARS) are typically several orders of magnitude greater than those of spontaneous Raman Scattering. This, in addition to the high spatial resolution inherent in nonlinear optical microscopy, has led CARS microscopy to begin emerging as a powerful, noninvasive technique for biological and material imaging.

scholarly journals Análisis de los efectos dispersivos y no lineales de un canal óptico empleando métodos numéricos

Ingenius ◽  
2014 ◽  
pp. 5
Author(s):  
Arturo Peralta Sevilla ◽  
Milton Tipán Simbaña ◽  
Ferney Amaya Fernández
Keyword(s):  
Fourier Transform ◽  
Raman Scattering ◽  
Phase Modulation ◽  
Stimulated Raman Scattering ◽  
Brillouin Scattering ◽  
Single Mode ◽  
Single Mode Fiber ◽  
Cross Phase Modulation ◽  
Self Phase Modulation ◽  
Stimulated Brillouin

En este documento, presentamos el modelado de un canal de fibra óptica mediante la resolución de la Ecuación No Lineal de Schrödinger (NLSE). Se presentan las dos formas de solución para la NLSE: la forma analítica y la forma numérica empleando el método SSF (Split–Step Fourier Transform). En la simulación se consideran efectos lineales como la dispersión cromática y los efectos no lineales. Uno de los efectos no lineal es el efecto Kerr, del que se derivan los efectos de auto modulación fase (Self Phase Modulation, SPM) y modulación de fase cruzada (Cross Phase Modulation, XPM). Los métodos de solución son empleados para simular y visualizar los efectos de propagación a través de la fibra óptica. Se analizan los efectos de propagación para un escenario de red de acceso óptica con fibra mono–modo estándar (Single Mode Fiber, SMF), con longitudes de fibra de 20 y 40 km y tasas de bits entre 1,25 y 100 Gbps. De otro lado, son presentados los fenómenos no lineales como dispersión estimulada de Raman (Stimulated Raman Scattering, SRS) y dispersión estimulada de Brillouin (Stimulated Brillouin Scattering, SBS). Se presentan las ecuaciones para modelar SRS. Se presentan resultados de simulación de la amplificación Raman en un escenario seleccionado.

Four Wave Mixing Effect on Simulated Raman Scattering in Single Mode Fiber

2018 ◽  
Vol 55 (6) ◽  
pp. 061901
Author(s):  
张鹏 Zhang Peng ◽  
田春林 Tian Chunlin ◽  
乔勇 Qiao Yong ◽  
吕栋栋 Lü Dongdong
Keyword(s):  
Raman Scattering ◽  
Single Mode ◽  
Four Wave Mixing ◽  
Single Mode Fiber ◽  
Wave Mixing ◽  
Mixing Effect ◽  
Simulated Raman Scattering
Sign in / Sign up

Export Citation Format

Share Document