Publications related to Speckle (interference)

Highly-sensitive distributed birefringence measurements based on a two-pulse interrogation of a dynamic Brillouin grating

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Andrey Denisov

A method for distributed birefringence measurements is proposed based on the interference pattern generated by the interrogation of a dynamic Brillouin grating (DBG) using two short consecutive optical pulses. Compared to existing DBG interrogation techniq ...

Ieee2017

Temperature-strain discrimination in distributed optical fiber sensing using phase-sensitive optical time-domain reflectometry

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Xin Lu

A method based on coherent Rayleigh scattering distinctly evaluating temperature and strain is proposed and experimentally demonstrated for distributed optical fiber sensing. Combining conventional phase-sensitive optical time-domain domain reflectometry ( ...

Optical Society of America2017

Correcting for photodestruction in super-resolution optical fluctuation imaging

Theo Lasser, Arno Pino Bouwens, Tomas Lukes

Super-resolution optical fluctuation imaging overcomes the diffraction limit by analyzing fluctuations in the fluorophore emission. A key assumption of the imaging is that the fluorophores are independent, though this is invalidated in the presence of phot ...

Nature Publishing Group2017

Soliton dual frequency combs in crystalline microresonators

Tobias Kippenberg, Maxim Karpov, Erwan Guillaume Albert Lucas

We present a novel compact dual-comb source based on a monolithic optical crystalline MgF2 multi-resonator stack. The coherent soliton combs generated in the two microresonators of the stack with the repetition rate of 12.1 GHz and difference of 1.62 MHz p ...

Optical Society of America2017

Demonstration of distributed shape sensing based on Brillouin scattering in multi-core fibers

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Zhiyong Zhao

In this paper we demonstrate distributed shape sensing based on stimulated Brillouin scattering in a multi-core fiber (MCF). Brillouin optical time-domain analysis with differential pulse-width pairs is implemented to measure the local tangential strain-in ...

Ieee2017

Optimization of Detection Schemes in BOTDA

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Li Zhang

The impact of different detection schemes on the performance of Brillouin optical time-domain analysis is investigated theoretically and experimentally. The study provides guidance for the optimization of BOTDA sensors depending on the targeted range. ...

OSA2016

Revisiting Newton’s rings with a plasmonic optical flat for high-accuracy surface inspection

Olivier Martin, Xiaolong Wang, Jie Bian

Two parallel optical surfaces often exhibit colorful fringes along the lines of equal thickness because of the interference of light. This simple phenomenon allows one to observe subwavelength corrugations on a reflective surface by simply placing on it a ...

Springer2016

Optimal detection bandwidth for phase-sensitive optical time-domain reflectometry

Luc Thévenaz, Marcelo Alfonso Soto Hernandez, Xin Lu

The spectrum of the temporal traces obtained from a phase-sensitive optical time-domain reflectometer is theoretically and experimentally analysed, demonstrating its dependence on the incident optical pulse shape. Numerical simulations and theoretical resu ...

Spie-Int Soc Optical Engineering2016

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Speckle (interference)

Highly-sensitive distributed birefringence measurements based on a two-pulse interrogation of a dynamic Brillouin grating

Coexistence of Multiple Nonlinear States in a Tristable Passive Kerr Resonator

Temperature-strain discrimination in distributed optical fiber sensing using phase-sensitive optical time-domain reflectometry

Correcting for photodestruction in super-resolution optical fluctuation imaging

Soliton dual frequency combs in crystalline microresonators

Demonstration of distributed shape sensing based on Brillouin scattering in multi-core fibers

Optimization of Detection Schemes in BOTDA

Revisiting Newton’s rings with a plasmonic optical flat for high-accuracy surface inspection

Spatial fringe analysis techniques for multiple phase and phase derivative estimation

Optimal detection bandwidth for phase-sensitive optical time-domain reflectometry

Graph Chatbot

Chat with Graph Search

Revisiting Newton’s rings with a plasmonic optical flat for high-accuracy surface inspection

Coexistence of Multiple Nonlinear States in a Tristable Passive Kerr Resonator

Highly-sensitive distributed birefringence measurements based on a two-pulse interrogation of a dynamic Brillouin grating

Temperature-strain discrimination in distributed optical fiber sensing using phase-sensitive optical time-domain reflectometry

Spatial fringe analysis techniques for multiple phase and phase derivative estimation

Soliton dual frequency combs in crystalline microresonators

Demonstration of distributed shape sensing based on Brillouin scattering in multi-core fibers

Optimal detection bandwidth for phase-sensitive optical time-domain reflectometry

Correcting for photodestruction in super-resolution optical fluctuation imaging

Optimization of Detection Schemes in BOTDA