Mode coupling contribution to radiation losses in curvatures for high and low numerical aperture plastic optical fibers

2002 ◽  
Vol 20 (7) ◽  
pp. 1160-1164 ◽  
Author(s):  
M.A. Losada ◽  
I. Garces ◽  
J. Mateo ◽  
I. Salinas ◽  
J. Lou ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Mode Coupling ◽  
Numerical Aperture ◽  
Radiation Losses ◽  
Plastic Optical Fibers

scholarly journals Shaping Beam Profiles Using Plastic Optical Fiber Tapers with Application to Ice Sensors

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2503
Author(s):  
Kostas Amoiropoulos ◽  
Georgia Kioselaki ◽  
Nikolaos Kourkoumelis ◽  
Aris Ikiades
Keyword(s):  
Fiber Optics ◽  
Optical Fibers ◽  
Laser Cooling ◽  
Detection Efficiency ◽  
Numerical Aperture ◽  
Beam Profile ◽  
Hollow Beam ◽  
Enhanced Sensitivity ◽  
Surface Irregularities ◽  
Plastic Optical Fibers

Using either bulk or fiber optics the profile of laser beams can be altered from Gaussian to top-hat or hollow beams allowing enhanced performance in applications like laser cooling, optical trapping, and fiber sensing. Here, we report a method based on multimode Plastic Optical Fibers (POF) long-tapers, to tweak the beam profile from near Gaussian to a hollow beam, by generating surface irregularities on the conical sections of the taper with a heat-and-pull technique. Furthermore, a cutback technique applied on long tapers expanded the output beam profile by more than twice the numerical aperture (NA) of the fiber. The enhanced sensitivity and detection efficiency of the extended profile was tested on a fiber optical ice sensor related to aviation safety.

Fabrication of Lensed Plastic Optical Fiber Array Using Electrostatic Force

2011 ◽  
Vol 133 (3) ◽  
Author(s):  
Yih-Tun Tseng ◽  
Jhong-Bin Huang ◽  
Che-Hsin Lin ◽  
Chin-Lung Chen ◽  
Wood-Hi Cheng
Keyword(s):  
Optical Fiber ◽  
Optical Fibers ◽  
Electrostatic Force ◽  
Coupling Efficiency ◽  
Numerical Aperture ◽  
Uv Curing ◽  
Power Budget ◽  
Fiber Array ◽  
Plastic Optical Fibers ◽  
Efficient Coupling

The GI (graded-index) POFs (Plastic optical fibers), which has been proven to reach distances as long as 1 km at 1.25 Gb/s has a relatively low numerical aperture . Therefore, the efficient coupling of GI POFs to the light source has become critical to the power budget in the system. Efficient coupling for a POFs system normally involves either a separate lens or the direct formation of the lens at the end of the fiber. Forming the lens-like structure directly on the fiber end is preferred for simplicity of fabrication and packaging, such as polishing and fusion, combine different fibers with the cascaded fiber method and hydroflouride (HF) chemical etching. These approaches are well established, but applicable only to glass. Optical assembly architecture for multichannel fibers and optical devices is critical to optical fiber interconnections. Multichannel fiber-pigtail laser diode (LD) modules have potential for supporting higher data throughput and longer transmission distances. However, to be of practical use, these modules must be more precise. This work proposes and manufactures lensed plastic optical fibers (LPOF) array. This novel manipulation can be utilized to fabricate an aspherical lens on a fiber array after the UV curing of the photo-sensitive polymer; the coupling efficiency (CE) is increased and exceeds 47% between the LD array and the fiber array.

Influence of width of launch beam distribution and mode coupling on transmission characteristics of W-type plastic optical fibers

Laser Physics ◽  
2021 ◽  
Vol 31 (8) ◽  
pp. 085104
Author(s):  
B Drljača ◽  
A Simović ◽  
A Djordjevich ◽  
R Min ◽  
S Jovanović ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Mode Coupling ◽  
Transmission Characteristics ◽  
Plastic Optical Fibers

Modeling of the loss and mode coupling due to an irregular core–cladding interface in step-index plastic optical fibers

2005 ◽  
Vol 44 (19) ◽  
pp. 3898 ◽  
Author(s):  
Milan S. Kovačević ◽  
Dragoslav Nikezić ◽  
Alexandar Djordjevich
Keyword(s):  
Optical Fibers ◽  
Mode Coupling ◽  
Step Index ◽  
Plastic Optical Fibers

Influence of mode coupling on three, four and five spatially multiplexed channels in multimode step-index plastic optical fibers

2018 ◽  
Vol 106 ◽  
pp. 18-21 ◽  
Author(s):  
Svetislav Savović ◽  
Alexandar Djordjevich ◽  
Ana Simović ◽  
Branko Drljača
Keyword(s):  
Optical Fibers ◽  
Mode Coupling ◽  
Step Index ◽  
Plastic Optical Fibers

Far-field radiation patterns and mode coupling in plastic optical fibers

1998 ◽  
Author(s):  
Gang Jiang ◽  
Rui-Fang Shi ◽  
J. Wang ◽  
Anthony F. Garito
Keyword(s):  
Optical Fibers ◽  
Mode Coupling ◽  
Far Field ◽  
Radiation Patterns ◽  
Field Radiation ◽  
Plastic Optical Fibers
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