Method for a reflective digitally tunable laser

Details Method for a reflective digitally tunable laser Method for a reflective digitally tunable laser

H - Electricity

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H01L 21/20 (2006.01) G02B 6/34 (2006.01) H01S 5/026 (2006.01) H01S 5/40 (2006.01) H01S 5/14 (2006.01) H01S 5/20 (2006.01) H01S 3/18 (1995.01)

Patent

CA 2155776

A method for forming a reflective digitally tunable laser using selective area epitaxy is disclosed. The laser comprises passive waveguides and a plurality of optical amplifiers. The waveguides and optical amplifiers are formed by depositing multiple quantum wells having a suitable bandgap. According to the method, the multiple quantum wells forming both the passive waveguides and the optical amplifiers are deposited simultaneously using a dielectric mask. The mask comprises dual, rectangularly- shaped strips of dielectric material, spaced to form a gap. The multiple quantum wells grown in the gap are suitable for use as optical amplifiers, and those grown outside of the gap are suitable for use as passive waveguides.

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