In the USA, both SDL and Alpha Photonics are supplying laser diodes. Alpha Photonics is a small manufacturer, one of whose major stockholders is the Taiwan corporation OptoTech. At least three companies in Taiwan are gearing up to produce laser diodes. United Epitaxy Company in Hsinchu is a major producer of epitaxial wafers for LEDs. They restrict their attention to producing the epi wafers and the chips.
Packaging is done by their customers.
They are planning to begin producing laser diodes in the 635-670nm range this year. This would probably follow their current path of selling the laser diode chips unpackaged. Liteon Electronic Co. Ltd., who also currently produces LEDs as one of their products, has announced plans to begin producing laser diodes. They are in the process of investigating some of the critical technology development incentive programs offered by the government of Taiwan. They have already released some laser diode chips for testing locally which were produced in the USA using their process and personnel.