상세정보
학술지
Monolithically Integrated Optical Beat Sources toward a Single-Chip Broadband Terahertz Emitter
- 발행일
- 201306
- 출처
- Laser Physics Letters, v.10 no.8, pp.1-6
- ISSN
- 1612-2011
- 출판사
- WILEY-VCH Verlag GmbH & Co. KGaA
- 협약과제
- 12SF1400, 포토닉스 집적회로 기반 테라헤르츠 무선 인터커넥션 기술 개발, 박경현
- 초록
- We have developed a 1.3 μm phase-shifted dual-mode laser diode (pDML) for a tunable continuous-wave terahertz (CW THz) emitter. The mode beat frequency of the pDML is continuously tuned from 250 to 1480 GHz by introducing monolithically integrated micro-heaters and multiple sections to an all-active structure. The pDML shows a narrow spectral linewidth and a strong four-wave mixing signal throughout the entire tuning range. By combining InGaAs based photomixers, we have successfully generated continuous-wave THz radiation, and confirmed the precise beat frequency settings and fast sweeping of this. This pDML operating at 1.3 μm shows excellent performance in terms of THz conversion efficiency, tuning range and thermal stability. © 2013 Astro Ltd.
- KSP 제안 키워드
- Active Structure, Beat frequency, Continuous-wave terahertz, Conversion efficiency(C.E.), Dual-mode laser, Fast sweeping, Four-Wave Mixing(Fwm), Laser diode(LD), Micro-heater, Phase-shifted, Single-Chip