Lasing characteristics of 1.5-1.6 micron GaInAsP/InP integrated twin-guide lasers with first-order distributed Bragg reflectors
Abstract
Lasing characteristics of 1.5-1.6 micron GaInAsP/InP integrated twin-guide lasers with first-order distributed Bragg reflectors (DBR-ITG lasers) are given theoretically and experimentally. At the wavelength region the fiber loss is ultimately low, but the effect of the material dispersion is serious. It is theoretically found that single longitudinal mode operation over twice the threshold current is obtainable with high quantum efficiency by optimizing the coupling properties and configurational parameters of the DBR-ITG laser. The experimental results are also demonstrated. Single longitudinal mode operation of 1.5-1.6 micron DBR-ITG lasers under high-speed direct modulation was achieved with a pulsewidth of 1.5 ns.
- Publication:
-
IEEE Journal of Quantum Electronics
- Pub Date:
- May 1981
- DOI:
- Bibcode:
- 1981IJQE...17..651U
- Keywords:
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- Heterojunction Devices;
- Infrared Lasers;
- Integrated Optics;
- Lasing;
- Semiconductor Lasers;
- Threshold Currents;
- Bragg Angle;
- Fiber Optics;
- Indium Phosphides;
- Laser Modes;
- Optical Coupling;
- Optical Reflection;
- Optical Waveguides;
- Pulse Duration;
- Quantum Efficiency;
- Reflectors;
- Lasers and Masers