Visible light laser diode and manufacturing method of visible li

Details Visible light laser diode and manufacturing method of visible li Visible light laser diode and manufacturing method of visible li

1994-12-12

1996-08-06

Lee, John D.

Coherent light generators

Particular active media

Semiconductor

372 45, H01S 319

Patent

active

055441858

ABSTRACT:
A visible light laser diode includes an etching stopping layer having a lower etching rate in an etching solution than a cladding layer, having a larger band gap energy in bulk than the band gap energy of the active layer, including a layer that stops etching, and having a band gap energy exceeding an energy corresponding to the oscillation wavelength of the visible light laser diode. Therefore, the cladding layer can be selectively etched with satisfactory controllability to a predetermined shape. After the etching process, even with a laminated etching stopping layer partly remaining in the cladding layer, the etching stopping layer does not absorb light emitted from the active layer.

REFERENCES:
patent: 4504952 (1985-03-01), Hartman et al.
patent: 5255279 (1993-10-01), Takahashi et al.
patent: 5381024 (1995-01-01), Valster

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