Retro-reflective evanescent field sensors based on Bragg gratings made in biconical tapered fiber with femtosecond IR radiation

2005 ◽  
Author(s):  
D. Grobnic ◽  
H. Ding ◽  
S. J. Mihailov ◽  
C. W. Smelser
Keyword(s):  
Bragg Gratings ◽  
Evanescent Field ◽  
Ir Radiation ◽  
Tapered Fiber ◽  
Made In

Bragg grating evanescent field sensor made in biconical tapered fiber with femtosecond IR radiation

2006 ◽  
Vol 18 (1) ◽  
pp. 160-162 ◽  
Author(s):  
D. Grobnic ◽  
S.J. Mihailov ◽  
Huimin Ding ◽  
C.W. Smelser
Keyword(s):  
Evanescent Field ◽  
Bragg Grating ◽  
Ir Radiation ◽  
Tapered Fiber ◽  
Field Sensor ◽  
Made In

Bragg Gratings Made in Highly Nonlinear Bismuth Oxide Fibers With Ultrafast IR Radiation

2010 ◽  
Vol 22 (2) ◽  
pp. 124-126 ◽  
Author(s):  
Dan Grobnic ◽  
Robert B. Walker ◽  
Stephen J. Mihailov ◽  
Christopher W. Smelser ◽  
Ping Lu
Keyword(s):  
Bismuth Oxide ◽  
Bragg Gratings ◽  
Ir Radiation ◽  
Highly Nonlinear ◽  
Made In

Innovative Substrate-Integrated Hollow Waveguide Coupled Attenuated Total Reflection Sensors for Quantum Cascade Laser Based Infrared Spectroscopy in Harsh Environments

2021 ◽  
pp. 000370282110643
Author(s):  
Andrea Teuber ◽  
Robert Stach ◽  
Julian Haas ◽  
Boris Mizaikoff
Keyword(s):  
Quantum Cascade Lasers ◽  
Evanescent Field ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
Ir Radiation ◽  
Metal Structures ◽  
Quantum Cascade ◽  
Hollow Waveguides ◽  
Optical Alignment ◽  
Atr Spectroscopy

An innovative mid-infrared spectroscopic sensor system based on quantum cascade lasers has been developed. The system combines the versatility of substrate-integrated hollow waveguides (IHWGs) with the robustness of attenuated total reflection (ATR) crystals employed as internal reflection waveguides for evanescent field sensing. IHWGs are highly reflective metal structures that propagate infrared (IR) radiation and were used as light pipes for coupling radiation into the ATR waveguide. The combined IHWG-ATR device has been designed such that the utmost stability and robustness of the optical alignment were ensured. This novel assembly enables evanescent field absorption measurements at yet unprecedently harsh conditions, that is, high pressure and temperature. Combining these advantages, this innovative sensor assembly is perfectly suited for taking ATR spectroscopy into the field where the robustness of the assembly and optical alignment is essential.

High birefringence fibre Bragg gratings written in tapered photonic crystal fibre with femtosecond IR radiation

2007 ◽  
Vol 43 (1) ◽  
pp. 16 ◽  
Author(s):  
D. Grobnic ◽  
H. Ding ◽  
S.J. Mihailov ◽  
C.W. Smelser ◽  
J. Broeng
Keyword(s):  
Photonic Crystal ◽  
Bragg Gratings ◽  
Ir Radiation ◽  
Photonic Crystal Fibre ◽  
High Birefringence ◽  
Fibre Bragg Gratings

Self-Apodization Effect in Tapered Fiber Bragg Gratings

2018 ◽  
Vol 36 (14) ◽  
pp. 2882-2887
Author(s):  
Konrad Markowski ◽  
Kazimierz Jedrzejewski ◽  
Mateusz Slowikowski ◽  
Tomasz Osuch
Keyword(s):  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Tapered Fiber
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