could u wrire a sammary or conclusion about this experiment

Scattering and Absorption Losses EXERCISE OBJECTIVE At the completion of this exercise you aill understand the atteruation that occurs when lieht travels through a flber oot ic cable. You will calculate and measure the pouer loss through an cpt ical f iber. DISCUSSION All f ibericpt ic cables have tug main partst the optical ftber and the jacket. The cotical fiber consists of a core surrounded by a cloodin? Together the core and cladding forn a mavemice that steers light through the f tber. The facket protects the f Iber and prou Ides sechan ical appart. Glass fibers are ususily protected by additiona i strength and buffer layers. These layers protect the glasis fiber from stock and cham bends. The dianeter of a zlass fiber is shall enoigh to eastly pass through your sk in and cause a serious injury. The f iber-aptic cable assent lies erovaded with your cirait board are interided to prevent enposere to the slases fiber Do net afteret te adafy the cable or connect ore. fo prevent accidents, ifisucat of danated glass f iber cables irsedintefy. The glass frocr-apt ic cables are narked wath the numbers $2.5,125. desiprat ire the core and cludding dianeters. The plastic cable proubed ulth the circult boars has stee incres cotical fiber. The refractive index of the fiber charees asnupt ly ot the cere ane elaselfe interface. The refructive index of the claddine is 1.413. The core refract iue index is is higher of 1.43?. Luet traueling through the tiber core ref lects off the claddine because of the step change in the refraction index. 1. Hay does a stee index, f iber gaide the Inght through its eares s. Bv refraction. b. Dy refiection. The 62,5 izs glass cable proulded with the circuit board has a craded index fiber. The refriction index of the core chunces pradually as the licht noves nisy frow the center of the core. 2. Which part of the zlast fiber has the hiphest. fefract tye there? a. The core. b. The cladding Scattering and Absorption Losses cuaenns of Aa light travels tourd she slasdirg, the masul lour ine of the redracback taurds the center. a. Bv refratien. b. bu ref lection and refrastion. Qptical fubers are not idral wavesilies. Sone of the irpat liets paver in lant to and dissipate it as heat. fosorption losses are uffocted by sore mater isil and tisht wavelencth. Manufacturine yariations in the deraity or conposition of the fiber scatter scae of the licht. frperfect ions in the core to cladding interface are called Microbends caise additions I scattering loases. Scatterine losses decrease as invelength increates. FIber manufacturers specify the conbined acitterire and abeerp- tion losses in decibels per kilaneter (ctika). 4. What is the eposted atteruation for this plast ic fiber when it is used at a wavelength of 12e - nnt 4. 283d d. b. 2 en d - c. i 0 . cattering and Absorption Losses PROCEDURE See Heip 2-4 1. Cornect the in 5 -tersinated plast ic fiber-apt ic cable between the Excessive cable bending will cause unexpected tosses and paor exper tsental results. Use cent le arves snd avoid umectessary bends ihen rout the the fiber-opt ic cable. 2. Use the J-pin range shant to select the HI aeasurenent range. 3. Connect a twit betueen the phototransistor EnITIR and 9D. Light falling on the phototranaistor controis its phatocarrent (10). The trunsistor's photocurrent flous through the i ko resist or prodic ine a voltage that is proportional to the relat ive lizht pouer. 4. Neatare the relative laght pouer detected by the phototrinsistor. iny48=708m 5. Connect the Sa ST-tersinated plast ic fiber-cot ic cable between the IRED (94a nw) (FD and the phototronsister. Popte cable bendine by using several large locos. 6. Hessure the relative light pouer detected by the phototransistor. 5sin43336 7. Using the aboue formula, calcalate the cotical pover ratio between the two lengths of pisstic cable. The pover rat io between cables is ase to atteruation from the additional in of optical fiter. 8. Caloulate the cotical power loss, or attenation, in den. Losseget=.8.317ise Scattering and Absorption Losses Each fiber-cotic connection atteruates liatit. Varlation betueen the connect ians introdaces efror in the sbserveit poim ratio turtaem the is and Sin fibern. The error introduced by the correctar warlat ions can tetal +0.5 dea. 13. Is the ohserved vilue of 4.1 d. within 12.5 if of the i.it dis expected value? a. yea b. no 11. Connect the in S-terminated plastic fitier-ot ic cabie betacen the red (635m. 100 and the phototransiation. 12. Heasure the relative lisht pauer octected by the phototrunsistor. Ins.5 * 94.7mW 13. Cornect the 5 s 5T-terwinated plastic flber-cot ic cable betiem the red L ED and the phototrandistor. 14. Nease the relat we light pout detected by the phototransistor. 5395=40.7an cosisis0.91das 16. Does the observed 1.21 Da atteruation acret with the eopected walue? b. ne Scattering and Absorption Losses 17. Cernect the in St-terninuted pisst ic fiber-cotit cable betueen the ereen (555 wil LD and the phototransistur. I8. Heasare the relat ive lisht paer detected by the phototraisistor. 1856. 17.5nv 15. Connect the in si-terninuted plastic fiber-eptic cabie betueen the green LED and the phototransistor. 21. Heasure the reiative liath poues detected by the phototranaister. 50565+9.1mW 21. Calculate the cable loss in d=as. cosess=0.7des 22. Oid the abserued aptics 1 powe lass agrec with the expected value? a. yes b. no 23. Is fiber attenution dependent on wavelergth a. yet b. 10 24. Which wavelerget is expected to prodice the leust pouer loss in the plast ic riber? 4. 194 in b. 695m c. 565m The maruf ucturer apeifies this cable for use at is in because red ilath sources are more efficient than green light soarces. 25. Pasition the Aororionsistor shunt to select the sore sensitive dop seisiresent ravge. the Ifed 64il in in and the phototransistar. 27. Neasire the relative cotical pover at the photetraraintor. Scattering and Absorption Losses 25. Heasure the reistine liaht poor detected by the phototransiator. 38. Caloulate the observed pouer rat to beturen the in and sa rlass cabiea. Pryes = 1910 is iss ald class cable at 94m. The fiber-aptie cornections can introaice ip to a 1.2 a error in the relat ive pout measesents. 32. What is the asat lakely case for the relat ive pauer lasn between the in and 5 a rlass cablen? a. fiber atteruation B. comector attenation 31. If a 1365 re tipht aarce is trangatted throuch 2 in of 62.5 .125 risus cable, what is the epected fiber atteruation clossi? coss 0.02 is 34. Which type of fiber has the least atteruatien per unit lengthe a. rlass b. plastic