Optical isomers are those isomers which should posses no POS.
.i.e. No Plane of symmetry
and No Axis of symmtery.
Then only it would be considered as optically active isomers.
.
And for this U would have to check the POS from all views.
						

							
@ diptesh
Plastic optical fiber (POF) (or Polymer optical fibre) is an optical fiber that is made out of polymer. Similar to glass optical fiber, POF transmits light (for illumination or data) through the core of the fiber.
these optical fibre are also used in transmission of light and diff things into distant place without any much losses . 
HOPE IT CLEARS YOUR DOUBT 
ALL THE BEST ..
 
						

							
Optical isomerism is a form of Stereoisomerism.These are the molecule that differ three dimensionally by the placement of substituents around one or more atom in a molecule.Optical isomers were given their name because they were first able to be distinguished by how they rotated plane polarised light.
Optical isomerism is a result of each carbon in a c=c bond being attached to two different atom or group of atom.
Optical isomerism is present where there is an asymmetric carbon in the structure ,ie a carbon bonded to four different atom or group of atom.
HOPE IT’S HELPS YOU!