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Journal Article
Distributed Feedback Laser Diode Integrated with Distributed Bragg Reflector for Continuous-wave Terahertz Generation
- Authors
- Namje Kim, Sang-Pil Han, Han-Cheol Ryu, Hyunsung Ko, Jeong-Woo Park, Donghun Lee, Min Yong Jeon, Kyung Hyun Park
- Issue Date
- 2012-07
- Citation
- Optics Express, v.20, no.16, pp.17496-17502
- ISSN
- 1094-4087
- Publisher
- Optical Society of America (OSA),
- Language
- English
- Type
- Journal Article
- Abstract
- A widely tunable dual mode laser diode with a single cavity structure is demonstrated. This novel device consists of a distributed feedback (DFB) laser diode and distributed Bragg reflector (DBR). Microheaters are integrated on the top of each section for continuous and independent wavelength tuning of each mode. By using a single gain medium in the DFB section, an effective common optical cavity and common modes are realized. The laser diode shows a wide tunability of the optical beat frequency, from 0.48 THz to over 2.36 THz. Continuous wave THz radiation is also successfully generated with low-temperature grown InGaAs photomixers from 0.48 GHz to 1.5 THz. © 2012 Optical Society of America.
- KSP Keywords
- Beat frequency, Cavity structure, Continuous-wave terahertz, Distributed Bragg reflector, Distributed feedback (DFB) laser, Distributed feedback laser diode, Distributed feedback lasers(DFBs), Dual-Mode, Gain medium, Laser diode(LD), Low temperature(LT)
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
