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optics that is positiveintrinsic negative diode ( PIN diode ) and avalanche photodiode (APD)

By Steve Rogers,
Diode  PIN  (Figure  5)  has a  layerintrinsic semiconductor     between parts P and Nthat works to absorb foton more.  PIN diodes  require  tensionn  are  relativelylow yaitu  8  -10 Volt. Diode PIN more efficient used  in  communicative skills  borek  pendek  andhas a good sensitivityk for LED.   Figure 5: PIN diode (Source: Zanger, 1991)  PPE  isdetector optics that  hasstrengthening  the  ( internal  gain )  functionto  multiply the  number of  electrons.  APDhave sensitivity andthe better inbanding PIN diode. APD can be usednakon communication distance remote  with  LD  ( laser  diode )  as the  sourcethe optics. 

PPE  requires a  voltage  of  40- 400  volts. APDalso has a noise internally which  more high and very sensitive  tochange suhu (Singer, 1991, Thomas, 1995). 9. Application   The technology  of fiber  optics  has been  applied  to thevarious  fields,  both  at midwivesg telecommunications, medicine, iindustry and  the general public.  Inin  telecommunications, optical  fiber  is  usedas trunk  channels , backbone , junction routes ,    submarine cables, and customer loops, also as a channel between  computers (LAN), and  as  a  TV channelcable . 
fiber splicing certification
Optical fiber  can also be  used  assensor for  pressure measurement,  present or  not-there is  an  object,  and  temperature.  On  bidof medicine, sera  system t  optics  thave been  usedto  detect  and  cure  pensandwhom cancer , toohas been  used on  endoscope tools   or a   borescope  that works  to  checkorgan  body  parts  inside. Borescope is available   out equipped  deonly video  cameras  ,  monitors  andvideo display . In bidaof industry, borescope fiberoptics  indeedga is  used  to  check  partsthe part that  ca n't possibly be  seen withdirectly (Zanger, 1991).

 The public  umum  also  been  usedsystem of  fiber  optics  is  on  a variety of  purposeslike a  burglar alarm system ,  keba detectorkaran, and video conferencing equipment .  Until  kithis fiber optic  technology has   experiencing  growth  are  very  rapid.For  20  years  into  the future,  we  will  seevarious  use of  the technology  of fiber  optics  andtechnological developmentsru other.

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