BROWSE
Detail
Registered EXTERNAL CAVITY LASER LIGHT SOURCE
- Inventors
- Oh Su Hwan, Yoon Ki-Hong, Kisoo Kim, Dae Kon Oh
- Application No.
- 12541561 (2009.08.14)
- Publication No.
- 20100238962 (2010.09.23)
- Registration No.
- 8107508 (2012.01.31)
- Country
- UNITED STATES
- Project Code
- 08MB3400, Development of optical component technologies for advanced FTTH, Dae Kon Oh
- Abstract
- Provided is an external cavity laser light source. The light source includes a substrate, an optical waveguide, and a current blocking layer. The optical waveguide includes a passive waveguide layer, a lower clad layer, an active layer, and an upper clad layer that are sequentially stacked on the substrate and is divided into regions including a linear active waveguide region, a bent active waveguide region, a tapered waveguide region, and a window region. The current blocking layer was formed an outside of the active layer to reduce leakage current. The linear and bent active waveguide regions have a buried heterostructure (BH), and the tapered waveguide region and the window region have a buried ridge stripe (BRS) structure. The passive waveguide layer a width substantially equal to a maximal width of the tapered waveguide region at least in the bent active waveguide region, the tapered waveguide region, and the window region.
- KSP Keywords
- Active Layer, Active waveguide, Blocking layer, Clad layer, Current blocking layer, External cavity, External cavity laser(ECL), Laser light, Laser light source, Leakage Current, Light source, buried heterostructure, optical waveguides, tapered waveguide