OCSim Modules: Module 4c

OCSim Modules

Modern Fiber Optic Communication Systems Simulations with Advanced Level Matlab Modules


Module 4c


Modulation Schemes

NRZ-QPSK Transmitter


(1) Use the Existing Modules / Components for Your Research Papers, Research Projects, Theses and Lab Simulation Experiments.
(2) Modify the Modules / Components to the Next Level for Your Research Papers, Research Projects and Theses.
(3) Integrate Different Modules / Components in the OCSim Package to Realize Your Own Fiber Optic Communication Systems.
(4) Modify the Modules for Co-Simulations with the Third Party Commercial Optical Communication Systems Softwares.


Main Module


NRZ-QPSK transmitter that uses two dual drive Mach-Zehnder modulators (MZM) is simulated. The MZMs are driven by two polar NRZ signals corresponding to in-phase and quadrature data. The pulse shape is assumed to be raised-cosine.

This Module calls the following Sub Modules and Components:

(1) power_meter.m
Calculates the average optical power in dBm units

(2) tx_nrz_qpsk.m
Modulates the output of the laser with QPSK data using two dual drive Mach-Zehnder modulators

(3) eye_diagram.m
Plots the eye diagram of the optical power.

Explore Further this Module:

4c.1 Repeat 4b.1, 4b.2 by changing BPSK to QPSK.
4c.2 Modify the source code to realize 16-QAM.




OCSim Modules details can be seen by clicking the pages below:

OCSim Modules Overview | OCSim Modules (1-17) in the Package

Module (1a) | Module (1b) | Module (1c) | Module (2a) | Module (2b) | Module (2c) | Module (3a) | Module (3b) | Module (4a) | Module (4b) | Module (4c) | Module (4d) | Module (5) | Module (6a) | Module (6b) | Module (7) | Module (8a) | Module (8b) | Module (8c) | Module (9a) | Module (9b) | Module (10) | Module (11a) | Module (11b) | Module (12) | Module (13) | Module (14) | Module (15) Module (16) Module (17)

OCSim Modules Brochure 2018 | OCSim Modules Selected Publication ReferencesOCSim Modules Application Examples |

OCSim Modules Selected Simulated Results OCSim Modules Videos       


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