Abstract

InGaAlP visible-light laser diodes^1-5) have attracted much interest as light sources for high-density optical disk systems, high-speed laser printers and bar code scanners. For application to optical disk systems, stabilization of transverse modes and suppression of optical-feedback induced noise are required for laser diode characteristics. Low noise characteristics have been realized in GaAlAs lasers by using a self-pulsation structure⁶⁾. However, such a structure cannot be applied directly to InGaAlP lasers, because it is difficult to grow lattice-matched InGaAlP crystal onto grooved or stepped substrates.

© 1988 Optical Society of America