Title :
Analysis of FM and AM responses of a tunable three-electrode DBR laser diode
Author :
Zatni, A. ; Bihan, J. Le
Author_Institution :
Lab. RESO, Ecole Nat. d´´Ingenieurs de Brest, France
fDate :
6/1/1995 12:00:00 AM
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
Keywords :
Green´s function methods; amplitude modulation; distributed Bragg reflector lasers; frequency modulation; laser theory; laser tuning; optical modulation; semiconductor lasers; spectral line breadth; AM response; FM response; Green function; amplitude modulation; communication systems; frequency modulation; lightwave oscillator; lightwave transmitter; multielectrode laser; rate equations; spectral linewidth; three-electrode DBR laser diode; wave propagation equation; wavelength tunability; Amplitude modulation; Diode lasers; Distributed Bragg reflectors; Equations; Frequency modulation; Frequency response; Green´s function methods; Optical propagation; Performance analysis; Tunable circuits and devices;
Journal_Title :
Quantum Electronics, IEEE Journal of
