Multiple-wavelength laser device
AssigneeSumitomo Electric Device Innovations, Inc.
InventorsTakuya Fujii, Shoichi Ogita
Life of this patent
Estimating the term…
Abstract
A multiple-wavelength laser device includes a first semiconductor laser chip having two modulable unit laser portions, outputs of the unit laser portions being optically coupled to a single output optical axis; a second semiconductor laser chip having two or less than two modulable unit laser portions, outputs of the unit laser portions being optically coupled to a single output optical axis; an optical coupler that combines the output optical axes of the first and the second semiconductor laser chips; and a plurality of drive current pathways or a plurality of signal transmission pathways that are coupled to each of the unit laser portions of the first and the second semiconductor laser chips with a connection conductor.
Claims12
A multiple-wavelength laser device comprising:
- a first semiconductor laser chip having two modulable unit laser portions, outputs of the unit laser portions being optically coupled to a single output optical axis;
- a second semiconductor laser chip having two or less than two modulable unit laser portions, outputs of the unit laser portions being optically coupled to a single output optical axis;
- an optical coupler that combines the output optical axes of the first and the second semiconductor laser chips;
- and
- a plurality of drive current pathways or a plurality of signal transmission pathways that are coupled to each of the unit laser portions of the first and the second semiconductor laser chips with a connection conductor.
Dependencies are inferred from the claim text.