Recent Development In 0.83 µm Superluminescent Diodes At TRW

Three modifications of the twin channel laser structure have been fabricated and characterized for continuous wave power and spectral limitations in superluminiscent diode (SLD) behavior. The conventional antireflective coating technique produced lasing - limited power less than 10mW. Fabry-Perot spectral modulation was typically greater than 50 percent at 7mW. The angle stripe approach yielded thermal - rollover limited powers of 30mW. Spectral halfwidth of 160 Å and 5% Fabry-Perot modulation were typical. The truncated stripe structure produced 15mW.