Vertical Integration of Dual Wavelength Index Guided GaAs-Lasers
The vertical integration of two GaAs-based lasers operating at different wavelengths has been achieved with the use of re-growth technology. A V-channel substrate inner stripe structure was used for the bottom laser and a ridge waveguide for the top laser. Both lasers shared a common electrode and can be powered independently or simultaneously. This represents a promising method for fabricating integrated lasers with different wavelengths.
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