InP-based PIC for an optical phased array antenna at 1.06 μm

Flamand, Giovanni; Mesel, Kurt De; Christiaens, Ilse; Moerman, Ingrid; Dhoedt, Bart; Hunziker, Walter; Kalma, A. H.; Baets, Roel; Daele, Peter Van; Leeb, Walter R.

doi:10.1109/iciprm.2000.850221

Cited by 6 publications

(6 citation statements)

References 5 publications

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“…A broadband phased-array antenna requires the generation of variable true-time delays at each antenna element to realize beam or null steering. Several approaches have been adopted to realise tunable true-time delay units, including the use of in-fibre chirped Bragg gratings (FBGs) (Italia et al, 2005a), free-space in conjunction with white cells (Mital et al, 2006a), integrated optical waveguides (Flamand et al, 2000), opticallyswitched fibre delay structures (Tong&Wu, 1998). However, none of these reported photonicsbased true-time delay units has the flexibility to either tune the true-time delay continuously or generate multiple tunable true-time delays for each antenna element simultaneously.…”

Section: Opto-vlsi-based Tunable Beamformer For Microwave Phased-arramentioning

confidence: 99%

Photonic Microwave Signal Processing Based on Opto-VLSI Technology

Xiao¹,

Alameh²,

Lee³

2011

Holograms - Recording Materials and Applications

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Section: Opto-vlsi-based Tunable Beamformer For Microwave Phased-arramentioning

confidence: 99%

Photonic Microwave Signal Processing Based on Opto-VLSI Technology

Xiao¹,

Alameh²,

Lee³

2011

Holograms - Recording Materials and Applications

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“…Following from the design criteria, as discussed above, such arrays should be as large as possible, with the emitters closely spaced. Initial work in this field first focused on one-dimensional (1D) arrays fabricated in indium phosphide [13] and silicon photonic technology [14]. For example, this latter realization used a 12-channel edge emitting array, tunable over 32°.…”

Section: Optical Phased Arrays With Individually Tunable Emittersmentioning

confidence: 99%

Highly integrated optical phased arrays: photonic integrated circuits for optical beam shaping and beam steering

2016

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Abstract:Technologies for efficient generation and fast scanning of narrow free-space laser beams find major applications in three-dimensional (3D) imaging and mapping, like Lidar for remote sensing and navigation, and secure free-space optical communications. The ultimate goal for such a system is to reduce its size, weight, and power consumption, so that it can be mounted on, e.g. drones and autonomous cars. Moreover, beam scanning should ideally be done at video frame rates, something that is beyond the capabilities of current opto-mechanical systems. Photonic integrated circuit (PIC) technology holds the promise of achieving low-cost, compact, robust and energy-efficient complex optical systems. PICs integrate, for example, lasers, modulators, detectors, and filters on a single piece of semiconductor, typically silicon or indium phosphide, much like electronic integrated circuits. This technology is maturing fast, driven by highbandwidth communications applications, and mature fabrication facilities. State-of-the-art commercial PICs integrate hundreds of elements, and the integration of thousands of elements has been shown in the laboratory. Over the last few years, there has been a considerable research effort to integrate beam steering systems on a PIC, and various beam steering demonstrators based on optical phased arrays have been realized. Arrays of up to thousands of coherent emitters, including their phase and amplitude control, have been integrated, and various applications have been explored. In this review paper, I will present an overview of the state of the art of this technology and its opportunities, illustrated by recent breakthroughs.

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“…Several approaches to generate tuneable TTD have been reported, including the use of in-fiber chirped Bragg gratings (FBGs) (Italia et al 2005), integrated optical waveguides (Flamand et al 2000), optically-switched fiber delay structures (Tong and Wu 1998), dispersion-enhanced photonic-crystal fibers (Jiang et al 2005), and higher-order mode dispersive multi-mode fibers (Raz et al 2004). While these reported true-time delay architectures are efficient for realising broadband beam steering in phased array antennas, they do not have the flexibility to simultaneously generate multiple arbitrary true-time delays required for null steering in PAA system.…”

mentioning

confidence: 99%