Modern Fiber Optic Communication Systems Simulations with Advanced Level Matlab Modules
Carrier Density and Optical Power of Laser Diodes for Pulsed Currents
(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.
The laser rate equations for pulses in a laser diode are simulated to obtain the photon density and carrier density.
This Module calls the following Sub Module / Component:
Solves the laser rate equations for pulses in a laser diode.
Explore Further this Module:
3b.1 Use a current pulse instead of the dc current (with a suitable DC bias so that the laser is biased above threshold). Let the first pulse be located at 5 ns with T0 (as defined in the code, rate_eqn_pulse.m) = 3ns. Modify the code to introduce three current pulses corresponding to a bit pattern of ’1101’ of a 100 Mb/s signal. Plot the output power (and also electron density) as a function of time. Explain any distortions you observe in the plot of optical power vs time. Are the optical power pulses broader than the current pulses?
3b.2 Repeat (3b.1) for a bit pattern of ’1101’ of a 200 Mb/s signal. Can you transmit 200 Mb/s signal using this laser diode? Provide explanation.