JOURNAL ARTICLE
Monolithically integrated 1.55-μm dual-wavelength distribute feedback laser and semiconductor optical amplifier array for terahertz mode-beating signal generation
Mengdie SunShaoyang TanSongtao LiuFei GuoDan LuChen Ji
Year: 2015 Vol: 51 Pages: 1-2
Abstract
A 1.55-μm dual-wavelength distributed feedback (DFB) laser diode array with integrated semiconductor optical amplifiers (SOAs) and multimode interference (MMI) coupler is demonstrated to realize widely tunable continuous-wave terahertz (THz) mode-beating signal generation. DFB lasers, SOAs, MMI coupler and spot-size converters (SSCs) have been integrated on the same InP based substrate. By electrically tuning the wavelength of the two single mode lasing DFB lasers, the chip shows a wide optical mode-beating frequency ranging from 40 GHz to 0.8 THz.
Keywords:
Optoelectronics Terahertz radiation Laser Optical amplifier Materials science Distributed feedback laser Semiconductor laser theory Optics Laser diode Lasing threshold Amplifier SIGNAL (programming language) Diode Wavelength Physics CMOS Computer science
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Topics
Terahertz technology and applications
Physical Sciences → Engineering → Electrical and Electronic Engineering
Photonic and Optical Devices
Physical Sciences → Engineering → Electrical and Electronic Engineering
Spectroscopy and Laser Applications
Physical Sciences → Chemistry → Spectroscopy
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