fiber Flashcards
cable jacket color codes
om1 - 62.5/125 - orange om2 - 50/125 - orange om3 - laser optimized - 50/125 - aqua mm - 100/125 - orange sm - 9/125 - yellow pmsm - 9/125 - blue
step index fiber
core is one material and it is slow
multimode light wavelength
850 and 1300
ST
twist in- inexpensive and easy to install
scribe
scratches the fiber to allow cleaving
fiber color code
Blue Owes Great Britain Several White Rabbits Because Yellow Violated Roses ass
pg 57
what is absorption in fiber
attenuation - conversion of light to heat
SC
snap in connector - easy to use
refraction
light is lossed in cladding. due to angle or dirt
stripper
removes heavy outside jacket of cables
ofc
optical fiber conductie
what causes macro bends
tight corners bending farther than bend radious allows
singlemode wavelength
1310 and 1550
ofng
optical fiber general purpos
wideband wavelength
953nm
polishing paper
polishing fiber ends
chromatic dispersion
the difference in speeds of light at different wavelengths arriving at their destinations at slightly different times.
connector color code
om1 beige 0m2 black om3 aqua mm black sm blue losm blue
ofnp
optical fiber pplenum
cleaver
precisely breaks the fiber to produce a flat end for polishing
LC
lucent technologies - for high densities
reflectance
light reflected from the cleaved or polished end of a fiber
graded index
variations in the composition in the glass faster
puck
holds connector in proper alignment to polishing film
attenuation
the reduction of optical power as it passes down the fiber
otdr
optical time domain reflectometer - uses back-scattering light to measure fiber length, attenuation and fault location
ofnr
optical fiber riser
ofn
optical fiber non conductive
model dispertion
pulse spreading caused by modes
micro bends
stretched or compressed fiber
microscope
used to inspect connector for proper polishing