Optical amplifiers and liquid-crystal shutters applied to electrically reconfigurable fiber optic signal processors

1993 ◽  
Vol 32 (5) ◽  
pp. 974 ◽  
Author(s):  
Behzad M. Moslehi
Keyword(s):  
Liquid Crystal ◽  
Fiber Optic ◽  
Optical Amplifiers ◽  
Signal Processors

Liquid crystal fiber optic electric field probe

1995 ◽  
Author(s):  
Beatrys M. Lacquet ◽  
Pieter L. Swart ◽  
Stephanus J. Spammer
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Fiber Optic ◽  
Crystal Fiber ◽  
Electric Field Probe

All-fiber-optic VOC gas sensor based on side-polished fiber wavelength selectively coupled with cholesteric liquid crystal film

2018 ◽  
Vol 273 ◽  
pp. 1816-1826 ◽  
Author(s):  
Jieyuan Tang ◽  
Junbin Fang ◽  
Yinling Liang ◽  
Biao Zhang ◽  
Yunhan Luo ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Gas Sensor ◽  
Fiber Optic ◽  
Cholesteric Liquid Crystal ◽  
Crystal Film ◽  
Side Polished Fiber

scholarly journals Electro-Steering Tapered Fiber-Optic Device with Liquid Crystal Cladding

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Joanna Korec ◽  
Karol A. Stasiewicz ◽  
Olga Strzeżysz ◽  
Przemysław Kula ◽  
Leszek R. Jaroszewicz
Keyword(s):  
Electromagnetic Wave ◽  
Liquid Crystal ◽  
Wavelength Range ◽  
Electromagnetic Wave Propagation ◽  
Fiber Optic ◽  
Broad Band ◽  
Fiber Taper ◽  
Optical Fiber Taper ◽  
Structure Liquid

The paper presents the results of design, manufacturing, and characterization of a hybrid broad band in-line fiber-optic device. It uses nematic liquid crystal as cladding with electro-steering properties in a biconical optical fiber taper structure. Liquid crystal mixtures denoted as 6CHBT and E7 are designed for electric as well as temperature control of electromagnetic wave propagation in a broad wavelength range. The applied taper with 10±0.5 μm diameters has losses lower than 0.5 dB in whole investigated spectrum range. Three kinds of initial liquid crystal molecules’ orientations (parallel, orthogonal, and twist) in relation to the light beam propagating in a taper were applied. The performance of a tuned cladding was studied at an electric field of the range of 0–190 V and the temperature range from 20°C up to 42°C and 59°C for 6CHBT and E7, respectively. The induced reorientation of liquid crystal molecules was measured at a broad wavelength range (550-1550 nm).

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