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Lesson 3: Optical Systems - WDM Design This lesson will show you how to simulate a WDM system with 8 channels. You will become familiar with the component library, parameter groups and visualizers such as Eye/BER analyzer. Global parameters For this simulation we will use default parameters for the Bit rate, Bit sequence length and Sample rate. • Select the menu File/New, • Double click on the layout background. Observe the global parameters used for this simulation, Bit rate = 2.5 GB/s Sequence length = 128 bits Time window = 5.12e-08 Transmitters Figure 44 -Global parameters • Create an external modulated laser following the steps of the first lesson, • Select the components of the external modulated laser, 30
• Resize the layout by pressing Ctrl+Shift, click in the layout background and drag the cursor over the layout. • Copy/paste the components in order to create 8 transmitters. Figure 45 -Creating 8 external modulated lasers • From the component library, go to Default > WDM Multiplexers Library > Multiplexers • Select WDM Mux 8x1 1.0 and place it onto the workspace by dragging the icon from the library. • Connect the Mach-Zehnder Modulator outputs to the WDM Mux 8x1 inputs. You can also select the values for the Mux internal filters to be displayed in the layout by selecting the Disp option in the Channels tab of the Mux properties dialog box. 31
Page 1: Tutorials OptiSys_Design Optical Co
Page 5 and 6: TABLE OF CONTENTS INTRODUCTION.....
Page 7 and 8: Introduction The most efficient way
Page 9 and 10: • Select CW Laser 1.0 and place i
Page 11 and 12: • The CW laser output to the Mach
Page 13 and 14: Visualizers and Data Monitors Figur
Page 15 and 16: For each category tab, there is a l
Page 17 and 18: Visualizers parameters In order to
Page 19 and 20: Optical Spectrum Analyzer Optical s
Page 21 and 22: You can also trace the to obtain th
Page 23 and 24: Lesson 2: Subsystems - Hierarchical
Page 25 and 26: Closing the subsystem Main layout S
Page 27 and 28: Subsystem properties: name and icon
Page 29 and 30: • In the Add parameter dialog box
Page 31 and 32: Global parameter frequency Global p
Page 33 and 34: Figure 39 -Adding components to the
Page 35: Running the simulation You can conn
Page 39 and 40: Parameter groups table gives you ac
Page 41 and 42: Figure 49 -Simulation results from
Page 43 and 44: Figure 52 -Loop control parameters
Page 45 and 46: • Select Electrical Amplifier 1.0
Page 47 and 48: Figure 57 -BER Analyzer graphs You
Page 49 and 50: The 3D graph is available in the gr
Page 51 and 52: Selecting the parameter to be itera
Page 53 and 54: Changing the values of sweep iterat
Page 55 and 56: Getting results using the Graph bui
Page 57 and 58: Browsing parameter sweep iterations
Page 59 and 60: Lesson 5: Design Versions - EDFA Ch
Page 61 and 62: Lesson 6: Optimizations - System ma
Page 63 and 64: Figure 77 -Getting results 57
Page 65 and 66: Figure 79 -Parameters for fiber len
Page 67 and 68: Input After SMF Output Figure 82 -S
Page 69 and 70: Figure 84 -The dispersion compensat
Page 71 and 72: Lesson 9: Design of a broadband Ram
Page 73 and 74: After creating the subsystem as sho
Page 75 and 76: Figure 91 - Raman Amplifier subsyst
Page 77 and 78: Figure 93 - Forward output spectrum
Page 79 and 80: Lesson 10: Optimization of the gain
Page 81 and 82: It is immediately seen that optimal

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