OCSim Modules

Modern Fiber Optic Communication Systems Simulations with Advanced Level Matlab Modules

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Module 3b

Lasers

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Carrier Density and Optical Power of Laser Diodes for Pulsed Currents

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Company Researchers & Developers

Integrate the Modules with your in-house and Commercial Software & Hardware Products

(1) Use the Existing Modules / Components for Your Research & Development.
(2) Modify the Modules / Components to the Next Level for Your Research & Development.
(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

laser_diode_pulse.m

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:

(1) rate_eqn_pulse.m
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.

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Selected Simulated Results Using this Module

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Electron Density Vs. Time

Optical Power Density Vs. Time

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

OCSim Modules Overview | OCSim Modules (1-18) 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) | Module (18)

OCSim Modules Brochure | OCSim Modules Selected Publication References | OCSim Modules Application Examples |

OCSim Modules Selected Simulated Results | OCSim Modules Videos       

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