Noise equivalent circuit of a semiconductor laser diode
Abstract
A small-signal model of a semiconductor laser is extended to include the effects of intrinsic noise by adding current and voltage noise sources. The current noise source represents the shot noise of carrier recombination, while the voltage noise source represents the random process of simulated emission. The usefulness of the noise equivalent circuit is demonstrated by calculating the modulation and noise characteristics of a current-driven diode as a function of bias current and frequency.
- Publication:
-
IEEE Journal of Quantum Electronics
- Pub Date:
- March 1982
- DOI:
- 10.1109/JQE.1982.1071546
- Bibcode:
- 1982IJQE...18..333H
- Keywords:
-
- Equivalent Circuits;
- Langevin Formula;
- Semiconductor Diodes;
- Semiconductor Lasers;
- Signal To Noise Ratios;
- Bias;
- Electron Recombination;
- Injection Lasers;
- Lasing;
- Light Emission;
- Shot Noise;
- Volt-Ampere Characteristics;
- Lasers and Masers