Semiconductor Laser Diode.

21 Outubro 2019, 14:00 • José Figueiredo

Semiconductor Laser Diode. Laser diode invention. Homojunction laser diode working principle. Semiconductor Optical Cavity. GaAs homojunction laser diode. Laser diode output. Double Heterostructure Laser Diode. Stripe Geometry Laser Diode. Transverse modes in Stripe Geometry Laser Diode. Buried Double Heterostructures. Modes in a laser and the optical cavity length. Quantum Well Lasers. A GaAs quantum well.

Optical resonator. Laser modes. Fabry-Perot optical cavity. Temporal and Spatial Coherence.

16 Outubro 2019, 14:30 • José Figueiredo

Optical resonator. Laser modes. Fabry-Perot optical cavity. Temporal and Spatial Coherence.

He-Ne laser principle of operation. Number of Modes and gain profile. Efficiency of the He-Ne laser. He-Ne laser cavity. laser modes. Fabry-Perot optical cavity. Finesse. Semiconductor optical cavity. Temporal and spatial coherence. Temporal and spatial coherence For a Gaussian light pulse. Coherence time and coherence length.

Optical resonator. Laser modes. Fabry-Perot optical cavity. Temporal and Spatial Coherence.

16 Outubro 2019, 13:30 • José Figueiredo

Optical resonator. Laser modes. Fabry-Perot optical cavity. Temporal and Spatial Coherence.

He-Ne laser principle of operation. Number of Modes and gain profile. Efficiency of the He-Ne laser. He-Ne laser cavity. laser modes. Fabry-Perot optical cavity. Finesse. Semiconductor optical cavity. Temporal and spatial coherence. Temporal and spatial coherence For a Gaussian light pulse. Coherence time and coherence length. 

Stimulated Emission based Devices - the LASER.

14 Outubro 2019, 15:00 • José Figueiredo

Properties of the laser light. Stimulated Emission based Devices: Optical Amplifiers and LASERS. Discussion of the need of lasers operating at 1310 nm and 1550 nm. The standard single mode optical fiber (brief introduction). LASER emission Requirements: Population inversion and a large photon concentration (the need of an optical cavity). Optical Gain. Essential parts of a laser. Laser systems of two, three and four levels. A 3-Level Laser - The Ruby laser principle of operation. A 4 Level Laser System – The He-Ne laser principle of operation.

Slides: Introduction to lasers;
Other texts (in Portuguese): Lasers and Optoelectronics; Física Experimental (Ótica: lasers, interferometria e holografia); 

Stimulated Emission based Devices - the LASER.

14 Outubro 2019, 14:00 • José Figueiredo

Properties of the laser light. Stimulated Emission based Devices: Optical Amplifiers and LASERS. Discussion of the need of lasers operating at 1310 nm and 1550 nm. The standard single mode optical fiber (brief introduction). LASER emission Requirements: Population inversion and a large photon concentration (the need of an optical cavity). Optical Gain. Essential parts of a laser. Laser systems of two, three and four levels. A 3-Level Laser - The Ruby laser principle of operation. A 4 Level Laser System – The He-Ne laser principle of operation.

Slides: Introduction to lasers;
Other texts (in Portuguese): Lasers and Optoelectronics; Física Experimental (Ótica: lasers, interferometria e holografia);