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.