Optoelectronics, an introduction
Glossary of symbols. Elements of solid state physics. Modulation of light. Display devices. Lasers I. Lasers II. Photodetectors. Fiber optical waveguides. Optical communications systems. Answers to numerical problems. Limitations on LED frequency response due to carrier diffusion and recombination. The Fuchtbauer-Ladenburg relation. Frequency response of a detector with an exponential time response. Signal-to-noise ratios for direct, heterodyne and homodyne detection. Physical constants. Properties of some common semiconductors at room temperature (300K).
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MODULATION OF LIGHT
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absorption amplitude angle applied atoms axis bandgap bandwidth beam beam divergence cavity cell coefficient coherence conduction band constant crystal density depletion region detector device diagram diffraction diode direction dispersion doped effect electric field electro-optic electron emission emitted emitter energy band energy gap energy levels equation example excitation frequency GaAs gain given hence holes illustrated in Fig impurity incident increase indirect bandgap irradiance large number lattice layer light losses material maximum medium minority carrier mirrors mode modulation molecules noise operation optical oscillations output p-n junction phase phosphor photocathode photoconductive photodiode photon plane polarized population inversion propagation pulse pumping radiation recombination reflected refractive index resistor resulting Schematic semiconductor shot noise shown in Fig signal silicon spectral step index fiber surface temperature thermal threshold tion transition transverse mode typical valence band velocity voltage wave wavefront waveguide wavelength width zero