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OPTICAL FIBER CONNECTORS
The optical connectors are generally used to join sources as well as detectors
to optical fiber ...
TYPES OF FIBER CONNECTORS
Basically there are four types of Fiber optic connectors:
Butt Joint.
Resilient ferrule.
Gro...
BUTT JOINT CONNECTORS
• Butt joint connectors employ a metal, ceramic or molded plastic ferrule
for each fiber and a preci...
• In Straight sleeve connector, the
length of the sleeve and a guide
ring on the ferrules determine the
end separation of ...
EXPANDED BEAM CONNECTOR
It employs lenses on the ends of the fibers.
These lenses either collimate the light from
transm...
A fiber optic coupler is a device used in optical fiber systems with one or more input fibers
and one or several output f...
Optical Fiber Connectors
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Optical Fiber Connectors

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These PPT's explains the mechanism and the types involved in Optical Fiber Connectors.

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Optical Fiber Connectors

  1. 1. OPTICAL FIBER CONNECTORS The optical connectors are generally used to join sources as well as detectors to optical fiber temporarily. Some of the principal requirements of a good connector design are as follows: Low losses Interchangeability Ease of assembly Low environmental sensitivity Low-cost and reliable construction Ease of connection
  2. 2. TYPES OF FIBER CONNECTORS Basically there are four types of Fiber optic connectors: Butt Joint. Resilient ferrule. Grooved plate hybrids. Expanded beam. Lets concentrate on Butt Joint and Expanded Beam. Straight sleeve Tapered sleeve
  3. 3. BUTT JOINT CONNECTORS • Butt joint connectors employ a metal, ceramic or molded plastic ferrule for each fiber and a precision sleeve into which the ferrule fit. • The fiber is epoxied into a precision hole which has been drilled into the ferrule. • They are of two type: Straight Sleeve and Tapered Sleeve.
  4. 4. • In Straight sleeve connector, the length of the sleeve and a guide ring on the ferrules determine the end separation of fibers. • In tapered sleeve, it uses a tapered sleeve to accept and guide tapered ferrules. • Again the sleeve length and guide rings maintain a given fiber-end separation.
  5. 5. EXPANDED BEAM CONNECTOR It employs lenses on the ends of the fibers. These lenses either collimate the light from transmitting fiber or focus the expanded beam onto the core of the receiving filter. Fiber to lens distance = focal length of lens. Advantages: • Connector is less dependent on lateral alignments. • Beam splitters and switches can be easily inserted into expanded beam between fiber ends.
  6. 6. A fiber optic coupler is a device used in optical fiber systems with one or more input fibers and one or several output fibers.  Light entering an input fiber can appear at one or more outputs and its power distribution potentially depending on the wavelength and polarization.  Such couplers can be fabricated in different ways, for example by thermally fusing fibers so that their cores get into intimate contact. It is not possible to combine two or more inputs of the same optical frequency into one single-polarization output without significant excess losses. However, such a restriction does not occur for different input wavelengths: there are couplers that can combine two inputs at different wavelengths into one output without exhibiting significant losses. Wavelength-sensitive couplers are used as multiplexers in wavelength-division multiplexing (WDM) telecom systems to combine several input channels with different wavelengths, or to separate channels.

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