Relationship between carrier-induced index change and feedback noise in diode lasers
Abstract
An improved theoretical analysis of single-mode diode laser dynamics reveals that feedback-induced intensity pulsations and frequency modulation are consequences of the carrier-dependent modal refractive index of the laser cavity. A stability criterion based on injection-locking theory indicates that gain-guided diode lasers are more likely to exhibit feedback-induced pulsations than are index-guided devices. Numerical simulation of feedback-induced noise is shown to be in excellent agreement with previously reported experimental data.
- Publication:
-
IEEE Transactions on Microwave Theory Techniques
- Pub Date:
- October 1982
- DOI:
- 10.1109/TMTT.1982.1131306
- Bibcode:
- 1982ITMTT..30.1663F
- Keywords:
-
- Carrier Density (Solid State);
- Feedback;
- Laser Cavities;
- Laser Stability;
- Semiconductor Diodes;
- Signal To Noise Ratios;
- Carrier Injection;
- Frequency Modulation;
- Injection Locking;
- Laser Mode Locking;
- Refractivity;
- Lasers and Masers