Development of a Broadband and Squint-Free Ku-Band Phased Array Antenna System for Airborne Satellite Communications

Marpaung, David; Roeloffzen, C.G.H.; Beeker, Willem P.; Noharet, Bertrand; Verpoorte, J.; Baggen, R.

doi:10.5772/28399

Cited by 22 publications

(27 citation statements)

References 11 publications

(9 reference statements)

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“…Accordingly, wide-band beam-squint-free phased arrays can be realized, as Optical Time-Steered Antennas (OTSA) [2][3][4]. Some of the most recent examples of OTSAs are presented in [5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A Flexible Integrated Photonic True Time Delay Phaser for Phased Array Antennas

Capozzoli

Curcio²,

D’Elia³

2012

PIER B

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Abstract-An integrated photonic True Time Delay phaser for phased array, based on an innovative technology, is here presented. The module versatility is showed by presenting more driving strategies matching different antenna features. The phaser insertion loss, the fluctuations of the excitation coefficients corresponding to the various driving configurations and the statistical modeling of the realization defects are also discussed.

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Section: Introductionmentioning

confidence: 99%

A Flexible Integrated Photonic True Time Delay Phaser for Phased Array Antennas

Capozzoli

Curcio²,

D’Elia³

2012

PIER B

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“…A PAA is a set of multiple antennas, called antenna element (AE). Modern PAA consists of a large number of small antenna elements (AEs) and it can achieve the same gain of a large mechanically steerable antenna [3]. Recently, the use and advantages of PAA system for satellite communications systems have been thoroughly described in literature [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Carrier generation using a dual-frequency distributed feedback waveguide laser for phased array antenna (PAA)

Khan

Islam

Sarowar

et al. 2017

J. Eur. Opt. Soc.-Rapid Publ.

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Background: Carrier generation based on optical heterodyning techniques where a beat signal is generated from the mixing of two light sources can be interesting solution due to ease on tunability. The free running heterodyning scheme benefits with a very wide tuning capability and the generated carrier can be freely adjusted. However, the drawbacks come in the form of frequency stability. Heterodyning of two optical frequencies coming from a single laser cavity has shown its potential on improvement of frequency stability. Methods: The impact of the laser parameters (i.e., optical power and linewidth) on the quality of the generated carrier (i.e., phase/frequency stability and carrier-to-noise ratio) is analyzed for a 25 × 64 elements PAA system. An optically generated carrier signal using a dual-frequency distributed feedback waveguide laser in ytterbium doped aluminum oxide (Al 2 O 3 :Yb 3+ ) is analyzed and experimentally demonstrated in this paper. The carrier signal is used for downconversion of the signal received from a phased array antenna (PAA) of a DVB-S (Digital Video Broadcasting-Satellite) system. Results: An optical frequency locked loop (OFLL) to stabilize the generated carrier is implemented which results in a microwave frequency at ∼14 GHz with a phase noise of -75 dBc/Hz at 1 MHz offset from the center frequency and gives a loop settling time of 12 μs. By using the proposed OFLL, the long term and the short term frequency stability of the generated carrier has an Allan deviation of more than 1 × 10 −10 for an averaging time of 1000 s and a standard deviation of 39.4 kHz, respectively. The lasers linewidth should be in the order of tens of Hz, with a maximum relative intensity noise (RIN) of -107 dB/Hz and a minimum optical power of 0.94 mW. Conclusions: The optical carrier generation by OFLL using a DFL to comply with the requirements of the standard carrier used in commercial LNBs has been investigated. The detailed analysis of the OFLL scheme is presented. Specifications requirement on carrier power, linewidth and relative intensity noise of the optically generated carrier have been addressed. The optical carrier generation is experimentally demonstrated and the requirements on CNR have been determined by measuring the noise floor and the optical carrier power. The measured values are compared with the calculated values and found to be very close.

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“…To give a state-of-the-art example, we consider optical beam forming networks, that can be used in phased antenna arrays for satellite communications. These type of networks require spectral tuning and a narrow laser bandwidth to increase the spatial resolution of the antenna's signal [1][2][3]. In such microwave photonics applications, the option for an integration of entire arrays of lasers and waveguide circuits is required, as well as the option of multiple injection locking for a control of the optical phase of the output.…”

Section: Discussionmentioning

confidence: 99%

“…An example is advanced satellite communication using phased array antennas in which rapid sweeping of the direction of reception independent of the specific shape and orientation of the antenna can be achieved with optical delay lines. As with the previously described examples it will become necessary to realize large arrays of laser sources in a miniaturized format on a chip [1,2]. The spectral bandwidth of these lasers has to be extremely narrow, oscillating at the same frequency with a well-defined relative optical phase.…”

Section: Introductionmentioning

confidence: 99%

“…Dit type netwerken hebben een laser nodig die spectraal smalbandig is en tegelijkertijd ook in golflengte afstembaar. Met die eigenschappen kan de spatiële resolutie van het signaal van de antenne verhoogd worden [1][2][3]. In zulke microgolf fotonische toepassingen, is de optie voor integratie van hele rijen van lasers en golfgeleider structuren nodig, alsmede de mogelijkheid om de fase van meerdere van deze lasers te controleren behulp van oscillatie synchronisatie via injectie van licht.…”

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Spectral control of diode lasers using external waveguide circuits

Oldenbeuving¹

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Cover: False-color Scanning Electron Microscope (SEM) picture of the electrical wires and heaters on the optical waveguide chip, which is used as external cavity for diode laser control (see Chapter 2). Because the SEM is zoomed-out very far, electron beam distortion is caused by the SEM's focusing magnet. This produces the fish-eye effect in the picture. The research presented in this thesis was carried out at the Laser Physics and Nonlinear Optics group, Department of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands. This research is supported by the Dutch Technology Foundation STW, which is part of the Netherlands Organization for Scientific Research (NWO) and partly funded by the Ministry of Economic Affairs (project number 10442). To my loving parents. SummaryIn this Thesis we investigate spectral control of diode lasers using external waveguide circuits. The purpose of this work is to investigate such external control for providing a new class of diode lasers with technologically interesting properties, such as a narrow spectral bandwidth and spectrally tunable output in a hybrid integrated format. These lasers are of interest in a variety of scientific and industrial applications. To give a state-of-the-art example, we consider optical beam forming networks, that can be used in phased antenna arrays for satellite communications. These type of networks require spectral tuning and a narrow laser bandwidth to increase the spatial resolution of the antenna's signal [1][2][3]. In such microwave photonics applications, the option for an integration of entire arrays of lasers and waveguide circuits is required, as well as the option of multiple injection locking for a control of the optical phase of the output.Another example is the simultaneous spectral and phase control of entire arrays of diode lasers. The superimposed output may offer the generation of trains of ultrashort pulses, which is equivalent with the generation of a phase locked comb of equidistant frequencies. Such sources can, for example, be of interest for high-speed optical data storage.In the first chapter, we discuss the theoretical design considerations and spectral properties for a waveguide based external cavity semiconductor laser (WECSL). The essential requirements to realize single-frequency operation with a WECSL are analyzed. We investigated the required properties for the two main components that comprise the WECSL, which are the semiconductor gain chip and the frequency selective waveguide circuit that provides the external feedback. The specific implementation of a highly frequency selective feedback via two micro ring resonators (MRRs), based on available low loss Si 3 N 4 /SiO 2 waveguide technology, is described in more detail. The values for the design parameters in this implementation indicate that it is possible to obtain single-frequency oscillation across the entire telecommunication C-band (1530-1565 nm). Furthermore, we expect a narrow optica...

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Development of a Broadband and Squint-Free Ku-Band Phased Array Antenna System for Airborne Satellite Communications

Cited by 22 publications

References 11 publications

A Flexible Integrated Photonic True Time Delay Phaser for Phased Array Antennas

A Flexible Integrated Photonic True Time Delay Phaser for Phased Array Antennas

Carrier generation using a dual-frequency distributed feedback waveguide laser for phased array antenna (PAA)

Spectral control of diode lasers using external waveguide circuits

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