Laser diode market has long been driven by optical disc and optical communication systems. However, there has been an increasing demand for multi-wavelength applications such as head-up displays and head-mounted displays. Sharp has recently started mass-production of Green laser diodes to address the growing demand from the market, and it became the first company in the industry capable of supplying all three primary color laser diodes. This paper provides a brief review of Sharp laser diode development history and latest performance of our LD portfolio. Proprietary Red lasers have high temperature characteristics and they are suitable for multi-wavelength laser systems, since Blue and Green lasers are stable against temperature by nature. It is also shown that tailored laser diodes are really necessary to design multi-wavelength laser systems. Sharp can supply all three primary color LDs and also IR LDs with customized properties as a one-stop supplier so that customers can easily design high-performance multi-wavelength laser systems.