scispace - formally typeset
Search or ask a question
Topic

Semiconductor optical gain

About: Semiconductor optical gain is a research topic. Over the lifetime, 5997 publications have been published within this topic receiving 96505 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: In this article, the Fourier analysis of the Fabry-Perot mode spectrum was used to evaluate the internal loss properties of semiconductor laser systems, and a comparison between experimental and calculated gain versus wavelength data for laser fabricated in the AlGaAs, AlGaInP, and alGaInN material systems was given.
Abstract: We present several observations on a novel method for the evaluation of the internal loss properties in semiconductor lasers. The method we use involves Fourier analysis of the Fabry-Perot mode spectrum when operating the device below lasing threshold. The observation of various structural features in the Fourier transform domain allows us to extract important information on the laser cavity. As one example, the amount of cavity propagation loss/gain, or net gain, can be derived from the decay rate of harmonics of the Fourier spectrum. A comparison between experimental and calculated gain versus wavelength data for lasers fabricated in the AlGaAs, AlGaInP, and AlGaInN material systems is given. As a second example, this method also allows the identification of the density and strength of intracavity scattering centers. This is an important capability for the fabrication of blue diode lasers in the gallium-nitride material system.

55 citations

Journal ArticleDOI
TL;DR: In this article, the probability density distributions of the laser intensity on a picosecond time scale are essentially independent of the number of optical modes involved in the laser emission, using two complementary high-resolution experimental measurement systems: a highbandwidth sampling digitizer and a single-shot streak camera.
Abstract: We present detailed statistical investigations of the irregular fast pulsing behavior present in the dynamics of semiconductor lasers with delayed optical feedback operating in the low-frequency fluctuation and coherence collapse regimes. We demonstrate that the probability density distributions of the laser intensity on a picosecond time scale are essentially independent of the number of optical modes involved in the laser emission, using two complementary high-resolution experimental measurement systems: a high-bandwidth sampling digitizer and a single-shot streak camera. The experimental results are supported by numerical studies using the singlemode Lang-Kobayashi equations, as well as a multimode extension of the model. Furthermore, we also demonstrate that gain saturation and coexisting attractors can cause substantial qualitative changes of the probability density distribution. @S1050-2947 ~99!09507-4#

55 citations

Journal ArticleDOI
TL;DR: It is shown numerically that, in some parameter regimes, spontaneous emission noise qualitatively influences the nature and statistics of the dropouts in semiconductor lasers with optical feedback.
Abstract: Semiconductor lasers with optical feedback can display sudden power-dropout events at irregular time intervals. We show numerically that, in some parameter regimes, spontaneous emission noise qualitatively influences the nature and statistics of the dropouts. Experimental measurements of the mean time between dropout events and its dependence on feedback strength agree well with analytic predictions made by Henry and Kazarinov [IEEE J. Quantum Electron. QE-22, 294 (1986)] based on the assumption that spontaneous emission noise induces these dropout events.

55 citations

Book
20 Jan 2005
TL;DR: In this paper, the authors describe the properties of materials from stimulated emission and absorption, as well as solid state and gas laser amplifier and oscillator, and the index of the Semiconductor Laser Index.
Abstract: Preface 1. Scalar wave equations and diffraction of laser radiation 2. Gaussian modes in optical laser cavities and Gaussian beam optics 3. Guided wave modes and their propagation 4. Guided wave interactions and photonic devices 5. Macroscopic properties of materials from stimulated emission and absorption 6. Solid state and gas laser amplifier and oscillator 7. Semiconductor lasers Index.

55 citations

Journal ArticleDOI
TL;DR: In this article, a low-temperature approximation for two-photon gain amplifiers based on electrically pumped GaAs heterostructures and optically pumped InSb is proposed.
Abstract: Semiconductors are proposed as two-photon gain media. The size of the effect and the conditions necessary to observe two-photon gain are determined by employing a low-temperature approximation that allows a simple combination of two-photon absorption theory and semiconductor laser theory. Two-photon gain amplifiers based on electrically pumped GaAs heterostructures and optically pumped InSb are discussed. >

55 citations


Network Information
Related Topics (5)
Photonic crystal
43.4K papers, 887K citations
91% related
Optical fiber
167K papers, 1.8M citations
91% related
Resonator
76.5K papers, 1M citations
87% related
Plasmon
32.5K papers, 983.9K citations
85% related
Laser
353.1K papers, 4.3M citations
85% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20233
20229
20211
20201
20187
201789