SPECTRAL CONTROL IN MULTISECTION ALGAAS SQW SUPERLUMINESCENT DIODES AT 800 NM

It is shown that multielectrode pumping allows a significant increase in the output power of quantum well SLDs in the broad spectrum operati ng regime. More than 60nm spectral width at output power ranges from 2 to 23mW was obtained by two-electrode pumping of the active region of AlGaAs SQW SLD. The possibility of controlling the form of the SQW SL D spectrum by multielectrode pumping and central wavelength switching of a 20nm FWHM (Gaussian profile) over 40nm is shown. The coherence le ngth of the SLDs estimated using the Mandel approach is 7mm at 2mW out put, increasing to 11mm at 23mW.