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Important questions
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UNIT -1
1. Step index finger and graded index fiber**2. transverse magnetic modes,eectric modes
3.mode analysis for optical propagation ,fiber fabrication techniques-fiber optic cablesUNIT-21. Signal attenuation2.Attenuatio,absorption (2m)
3. Linear scattering lossess**
4. OptimizatIon of single mode fiber UNIT-31. Laser diode (full topic)2. Surface emitting LED,Edge emitting LED
3.PIN photo detector,Avalanche photo diodes
UNIT-41. Optical Fiber connectors, LED coupling2.Digital receiver fully3. Fiber splicing**UNIT-51. SONET,SDH**
2. WDM,Passive DWDM Components
3. Optical ETHERNET-SolitonDon't share as screenshot -Stuff sector
**Very important questions are bolded and may be asked based on this topic
PART-C
1.Compulsory Questions {a case study where the student will have to read and analyse the subject }mostly asked from unit 2, 5(OR) a situation given and you have to answer on your own
UNIT -1
3.mode analysis for optical propagation ,fiber fabrication techniques-fiber optic cables
3. Linear scattering lossess**
4. OptimizatIon of single mode fiber
3.PIN photo detector,Avalanche photo diodes
2. WDM,Passive DWDM Components
3. Optical ETHERNET-Soliton
Don't share as screenshot -Stuff sector
**Very important questions are bolded and may be asked based on this topic
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*These questions are expected for the exams This may or may not be asked for exams All the best.... from admin Santhosh
Thanks for your love and support guys keep supporting and share let the Engineers know about Us and leave a comment below for better improvements If there is any doubt feel free to ask me I will clear if I can or-else I will say some solutions ..get me through WhatsApp for instant updates ~$tuff$£ctorSYllabuSUNIT I INTRODUCTION TO OPTICAL FIBERS
Introduction-general optical fiber communication system- basic optical laws and definitions- optical modes and configurations -mode analysis for optical propagation through fibers-modes in planar wave guide-modes in cylindrical optical fiber-transverse electric and transverse magnetic modes- fiber materials-fiber fabrication techniques-fiber optic cables-
classification of optical fiber-single mode fiber-graded index fiber.
UNIT II TRANSMISSION CHARACTERISTIC OF OPTICAL FIBER
Attenuation-absorption --scattering losses-bending losses-core and cladding losses-signal
dispersion –inter symbol interference and bandwidth-intra model dispersion-material
dispersion- waveguide dispersion-polarization mode dispersion-intermodal dispersion-
dispersion optimization of single mode fiber-characteristics of single mode fiber-R-I Profile-
cutoff wave length-dispersion calculation-mode field diameter.
UNIT III OPTICAL SOURCES AND DETECTORS
Sources: Intrinsic and extrinsic material-direct and indirect band gaps-LED-LED structures-
surface emitting LED-Edge emitting LED-quantum efficiency and LED power-light source
materials-modulation of LED-LASER diodes-modes and threshold conditions-Rate
equations-external quantum efficiency-resonant frequencies-structures and radiation
patterns-single mode laser-external modulation-temperature effort.
Detectors: PIN photo detector-Avalanche photo diodes-Photo detector noise-noise
sources-SNR-detector response time-Avalanche multiplication noise-temperature effects-
comparisons of photo detectors.
UNIT IV OPTICAL RECEIVER, MEASUREMENTS AND COUPLING
Fundamental receiver operation-preamplifiers-digital signal transmission-error sources-Front
end amplifiers-digital receiver performance-probability of error-receiver sensitivity-quantum
limit.
Optical power measurement-attenuation measurement-dispersion measurement- Fiber
Numerical Aperture Measurements- Fiber cut- off Wave length Measurements- Fiber
diameter measurements-Source to Fiber Power Launching-Lensing Schemes for Coupling
Management-Fiber to Fiber Joints-LED Coupling to Single Mode Fibers-Fiber Splicing-
Optical Fiber connectors.
UNIT V OPTICAL COMMUNICATION SYSTEMS AND NETWORKS
System design consideration Point – to –Point link design –Link power budget –rise time
budget, WDM –Passive DWDM Components-Elements of optical networks-SONET/SDH-
Optical Interfaces-SONET/SDH Rings and Networks-High speed light wave Links-OADM
configuration-Optical ETHERNET-Soliton.
UNIT I INTRODUCTION TO OPTICAL FIBERS
Introduction-general optical fiber communication system- basic optical laws and definitions- optical modes and configurations -mode analysis for optical propagation through fibers-modes in planar wave guide-modes in cylindrical optical fiber-transverse electric and transverse magnetic modes- fiber materials-fiber fabrication techniques-fiber optic cables-
classification of optical fiber-single mode fiber-graded index fiber.
UNIT II TRANSMISSION CHARACTERISTIC OF OPTICAL FIBER
Attenuation-absorption --scattering losses-bending losses-core and cladding losses-signal
dispersion –inter symbol interference and bandwidth-intra model dispersion-material
dispersion- waveguide dispersion-polarization mode dispersion-intermodal dispersion-
dispersion optimization of single mode fiber-characteristics of single mode fiber-R-I Profile-
cutoff wave length-dispersion calculation-mode field diameter.
UNIT III OPTICAL SOURCES AND DETECTORS
Sources: Intrinsic and extrinsic material-direct and indirect band gaps-LED-LED structures-
surface emitting LED-Edge emitting LED-quantum efficiency and LED power-light source
materials-modulation of LED-LASER diodes-modes and threshold conditions-Rate
equations-external quantum efficiency-resonant frequencies-structures and radiation
patterns-single mode laser-external modulation-temperature effort.
Detectors: PIN photo detector-Avalanche photo diodes-Photo detector noise-noise
sources-SNR-detector response time-Avalanche multiplication noise-temperature effects-
comparisons of photo detectors.
UNIT IV OPTICAL RECEIVER, MEASUREMENTS AND COUPLING
Fundamental receiver operation-preamplifiers-digital signal transmission-error sources-Front
end amplifiers-digital receiver performance-probability of error-receiver sensitivity-quantum
limit.
Optical power measurement-attenuation measurement-dispersion measurement- Fiber
Numerical Aperture Measurements- Fiber cut- off Wave length Measurements- Fiber
diameter measurements-Source to Fiber Power Launching-Lensing Schemes for Coupling
Management-Fiber to Fiber Joints-LED Coupling to Single Mode Fibers-Fiber Splicing-
Optical Fiber connectors.
UNIT V OPTICAL COMMUNICATION SYSTEMS AND NETWORKS
System design consideration Point – to –Point link design –Link power budget –rise time
budget, WDM –Passive DWDM Components-Elements of optical networks-SONET/SDH-
Optical Interfaces-SONET/SDH Rings and Networks-High speed light wave Links-OADM
configuration-Optical ETHERNET-Soliton.