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Registered MULTIPLE DISTRIBUTED FEEDBACK LASER DEVICES
- Inventors
- Park Kyung Hyun, Namje Kim, Leem Young Ahn, Han Sang-Pil, Hyunsung Ko, Chul-Wook Lee, Lee Dong-Hun
- Application No.
- 12980907 (2010.12.29)
- Publication No.
- 20110090932 (2011.04.21)
- Registration No.
- 8149890 (2012.04.03)
- Country
- UNITED STATES
- Abstract
- Provided is a multiple distributed feedback laser device which includes a first distributed feedback region, a modulation region, a second distributed feedback region, and an amplification region. An active layer is disposed on the substrate of the first distributed feedback region, the modulation region, the second distributed feedback region, and the amplification region. A first diffraction grating is disposed in the first distributed feedback region to be coupled to the active layer in the first distributed feedback region. A second diffraction grating is disposed in the second distributed feedback region to be coupled to the active layer in the second distributed feedback region. The multiple distributed feedback laser device further includes a first micro heater configured to supply heat to the first diffraction grating and a second micro heater configured to supply heat to the second diffraction grating.
- KSP Keywords
- Active Layer, Diffraction grating, Distributed feedback, Distributed feedback lasers(DFBs), Laser device, Micro-heater
- Family
| Status | Patent | Country | KIPRIS |
|---|---|---|---|
| Registered | 다중 분포 귀환 레이저 소자 | KOREA | KIPRIS |