Chapter 4: Part I Modulation Schemes Line Codes NRZ and RZ pulse - - PowerPoint PPT Presentation

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Aug 24, 2022 315 likes •498 views

Chapter 4: Part I Modulation Schemes Line Codes NRZ and RZ pulse shapes NRZ and RZ spectrum : polar PSK and FSK PSK signal generation Optical Modulator Directly modulated laser Externally modulated laser Lithium Niobate crystal

SLIDE 1

Chapter 4: Part I Modulation Schemes

SLIDE 2

Line Codes

SLIDE 3

NRZ and RZ pulse shapes

SLIDE 4

NRZ and RZ spectrum : polar

SLIDE 5

PSK and FSK

SLIDE 6

PSK signal generation

SLIDE 7

Optical Modulator

SLIDE 8

Directly modulated laser

SLIDE 9

Externally modulated laser

SLIDE 10

Lithium Niobate crystal

SLIDE 11

Mach-Zehnder Modulator

SLIDE 12

ASK modulation

SLIDE 13

Power transmission characteristics

f MZM

SLIDE 14

RZ-ASK

SLIDE 15

PSK

SLIDE 16

Field transmission characteristics

f MZM