Electrical & Electronic Symbols

Fiber Optic Symbols

Fiber optics are flexible cables with dielectric filaments of glass or plastic materials capable of transmitting signals through light pulses from one end to the other. This technology is widely used for data transmission over long distances, with a bandwidth greater than metallic electrical cables and immune to electromagnetic interference.

Symbols in Optical Fiber / Fibre
Symbol Description Symbol Description

Symbols of Transmitters and Receivers
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LED diode symbol Light Emitting Diode
LED Diode		   Laser diode symbol Laser diode
Símbolo de diodo emidor en extremo de pigtail Diodo emisor en extremo de pigtail   Símbolo de diodo fotodetector y emisor Light-Emitting photodetector
Without pigtailed source symbol Without pigtailed source   coherent with laser symbol Coherent with laser
With pigtail source symbol With pigtail source   Receiver symbol Receiver

Cable Symbols
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Optical fiber / Fibre symbol Optical fiber / Fibre   Optical fiber / Fibre symbol Optical fiber / Fibre
Fiber optic cable symbol Fiber optic cable
Generic symbol		   Fiber optic cable symbol Fiber optic cable
Fiber optic cable symbol Fiber optic cable
# - indicates number of threads		   Fiber optic cable symbol Fiber optic cable
# - indicates number of threads
Graded-index fiber symbol Graded-index fiber
MMF (Multimode-Fiber)		   Step-index fiber symbol Step-index fiber
SMF (Single-Mode-Fiber)
Supplementary info symbol Supplementary info
A - Core
B - Cladding
C - First buffer
D - Jacketing
E - Number of fibers		   Permanent joint symbol Permanent joint

Connector Symbols
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Optical fiber connector symbol Optical fiber connector   Connection female-male symbol Connection female-male
Receptacle with optical source symbol Receptacle with optical source   Plug with optical source symbol Plug with optical source

Splitter Symbols

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Optical splitter symbol Optical splitter   Optical splitter symbol Optical splitter
Optical splitter symbol Optical splitter      

Splice Symbols
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Splice of two fiber optic cables symbol Splice of two fiber optic cables   Splice of two fiber optic cables symbol Splice of two fiber optic cables
Splice of three fiber optic cables symbol Splice of three fiber optic cables   Splice of four fiber optic cables symbol Splice of four fiber optic cables
Fiber optic cable splicing symbols Fiber optic cable splicing   Fiber optic cable splicing symbols Fiber optic cable splicing
Optical splice box symbol Optical splice box      

Filter Symbols
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Short pass filter symbol Short pass filter   Long pass filter symbol Long pass filter
Band pass filter symbol Band pass filter      

Other Symbols
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Primary optical hub symbol Primary optical hub   Secondary optical hub symbol Secondary optical hub
Optical coupler symbol Optical coupler   Optical amplifier symbol Optical amplifier
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