Patent ID: 7279109
Filing Date: 2007-10-09
Classification: H01S

Abstract:
1. A method for manufacturing a first photonic device optically connected to a second photonic device, comprising the steps: a) epitaxially growing a first set of layers, including at least a first waveguide layer, on a semiconductor material having a dopant of a first type, b) applying an island mask on top of the first set of layers and removing the first set of layers in the unmasked areas, c) epitaxially growing a second set of layers for the second photonic device, including at least a second waveguide layer, on the semiconductor material in the unmasked areas, and thereafter removing the island mask, d) applying a first mask on top of the grown layers, removing the first and the second sets of layers in the unmasked areas, to form at least said first photonic device in a mesa structure and a second photonic device region coupled to said first photonic device in a light transmission direction, and removing the first mask, e) epitaxially growing a cladding layer at least on top of the first set of layers and the second set of layers, said cladding layer having a dopant of a second type, opposite to said first type, f) epitaxially growing a contact layer on top of the cladding layer, and g) arranging a first and a second metal contact, being separated, on top of the contact layer, said first metal contact being arranged above said first set of layers and said second metal contact being arranged above said second set of layers, f1) applying a second mask on the contact layer, covering at least a part of said first set of layers and at least a part of said second set of layers, f2) etching the contact layer and at least a part of the cladding layer, in the unmasked areas, f3) and applying an insulating material in the areas not covered with the second mask.