상세정보
학술지
Distributed Feedback Laser Diode Integrated with Distributed Bragg Reflector for Continuous-wave Terahertz Generation
- 발행일
- 201207
- 출처
- Optics Express, v.20 no.16, pp.17496-17502
- ISSN
- 1094-4087
- 출판사
- Optical Society of America (OSA),
- 초록
- 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 제안 키워드
- 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)