Journal ArticleDOI
Microwave Frequency Measurement Based on an Optically Injected Semiconductor Laser
TLDR
In this paper, a microwave frequency measurement system utilizing the optical injection technology in a semiconductor laser is proposed, where a single-wavelength optical carrier is generated and divided into two parts.Abstract:
A microwave frequency measurement system utilizing the optical injection technology in a semiconductor laser is proposed. A single-wavelength optical carrier is generated and divided into two parts. One part is intensity-modulated by a control signal with a triangular shape and then injected into a semiconductor laser to generate a frequency scanning optical sideband. The other part is modulated by the microwave signal under test, which is then coupled with the frequency scanning optical sideband and detected by a photodetector (PD). The output of the PD is filtered by an electrical passband filter and detected by an envelope detector. Electrical pulses will be obtained with the time interval proportional to the microwave frequency. Thus the microwave frequency can be retrieved from the time interval of the generated pulses. A proof of concept experiment is taken. The microwave frequency measurement from 3 to 40 GHz is achieved, and the frequency measurement errors are within ±30 MHz.read more
Citations
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Journal ArticleDOI
A broadband FFT spectrometer for radio and millimeter astronomy
Arnold O. Benz,Paolo C. Grigis,V. Hungerbuhler,Hansueli Meyer,Christian Monstein,Bruno Stuber,Dino Zardet +6 more
TL;DR: In this paper, the first results of a Fast Fourier Transform (FFT) spectrometer are described, based on a commercially available fast digital sampler (AC240) with an on-board Field Programmable Gate Array (FPGA).
Journal ArticleDOI
Period-One Laser Dynamics for Photonic Microwave Signal Generation and Applications
TL;DR: In this article , the authors concentrate on the realization and application of photonic microwave signal generation based on the P1 oscillation state of semiconductor lasers and review recent developments in P1 dynamics-based tunable microwave signal generator techniques with an emphasis on the optical injection system.
Journal ArticleDOI
All-optical, tunable, V- and W-band microwave generation using semiconductor lasers at period-one nonlinear dynamics with asymmetric mutual injection stabilization.
TL;DR: In this paper , an optically injected semiconductor laser operating at period-one nonlinear dynamics for all-optical microwave generation is investigated, and a novel, to the best of our knowledge, alloptical stabilization scheme is proposed to greatly enhance the spectral purity of such generated microwaves, which sends a small fraction of the injected laser output back to the injecting laser.
Proceedings ArticleDOI
An Integrated Radar Detection and Microwave Frequency Measurement System Based on an Optically Injected Semiconductor Laser
TL;DR: In this article , an integrated radar detection and microwave frequency measurement system is proposed and experimentally demonstrated based on an optically injected semiconductor laser, where both high-resolution radar and accurate microwave frequency measurements are realized simultaneously.
Journal ArticleDOI
Wideband High-Speed and High-Accuracy Instantaneous Frequency Measurement System
TL;DR: In this paper , a photonic-assisted instantaneous frequency measurement system is presented, which overcomes the latency problem in the reported structures based on the frequency to time mapping technique or the frequency-to-power mapping technique, and at the same time, enables the incoming microwave signal frequency to be measured over a wide frequency range with only small errors.
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Optical real-time Fourier transformation with kilohertz resolutions
TL;DR: In this article, a new concept for realization of RTFT that involves superposition of multiple signal replicas that are shifted simultaneously along the temporal and frequency domains, leading to an output temporal waveform that effectively maps the input optical spectrum is proposed.
Journal ArticleDOI
A broadband FFT spectrometer for radio and millimeter astronomy
Arnold O. Benz,Paolo C. Grigis,V. Hungerbuhler,Hansueli Meyer,Christian Monstein,Bruno Stuber,Dino Zardet +6 more
TL;DR: In this article, the first results of a FFT spectrometer are described, which is based on a commercially available fast digital sampler (AC240) with an on-board Field Programmable Gate Array (FPGA).
Journal ArticleDOI
Generation of Linear Frequency-Modulated Waveforms by a Frequency-Sweeping Optoelectronic Oscillator
TL;DR: In this paper, a simple scheme for linear frequency-modulated (LFM) waveform generation based on a frequency-sweeping optoelectronic oscillator is proposed and demonstrated.