Abstract
Starting with the wave propagation equation, neglecting spatial and spectral hole-burning effects, and using a solving method based on the Green's function, the rate equations are derived for a multielectrode laser. By applying them to a three-electrode DBR laser, tunability and linewidth performance are evaluated, and the modulation characteristics such as the amplitude response and the frequency response are analyzed. It is shown that amplitude modulation can be completely suppressed, and at the same time, a pure frequency modulation obtained if currents are related by an adequate equation. Since this laser diode has many advantages such as a wide wavelength tunability and a narrow spectral linewidth, it will be suitable as a lightwave oscillator or transmitter in future communication systems.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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