Two-dimensional apodized silicon photonic phased arrays

Sun, Jie; Hosseini, Ehsan Shah; Yaacobi, Ami; Cole, David B.; Leake, Gerald; Coolbaugh, Douglas; Watts, Michael R.

doi:10.1364/ol.39.000367

Cited by 71 publications

(39 citation statements)

References 12 publications

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“…Here we present several large-scale integrated optical phased arrays based on silicon photonic circuits, including a uniform 8×8 array and an apodized 8×8 array [5] for optical beam steering, a 64×64 holographic phased array representing the largest silicon photonic circuit to date, and a 1×16 array that demonstrates the widest 51° beam steering angle [6]. These demonstrations of optical phased arrays hold promise for future applications in free-space optical switching, optical communication, light detection and ranging (LIDAR), holography, etc.…”

Section: Introductionmentioning

confidence: 99%

Large-Scale Integrated Silicon Photonic Circuits for Optical Phased Arrays

Sun

Yaacobi

Timurdogan

et al. 2014

Advanced Photonics for Communications

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Section: Introductionmentioning

confidence: 99%

Large-Scale Integrated Silicon Photonic Circuits for Optical Phased Arrays

Sun

Yaacobi

Timurdogan

et al. 2014

Advanced Photonics for Communications

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“…Under certain circumstances, however, nonuniform near-field emission is preferred [51], [52]. For example, as we mentioned earlier, in the uniform optical phased array shown in Fig.…”

Section: Apodized Optical Antenna Arraymentioning

confidence: 83%

Large-Scale Silicon Photonic Circuits for Optical Phased Arrays

Sun

Timurdogan

Yaacobi

et al. 2014

IEEE J. Select. Topics Quantum Electron.

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We review recent advances in integrated large-scale optical phased arrays. The design and fabrication of large-scale optical phased arrays using silicon photonic circuits are discussed from device designs including the directional couplers, thermooptic phase shifters, and optical nanoantennas, to system studies including phased array synthesis and noise analysis. By taking advantage of the well-developed silicon complementary metal-oxidesemiconductor (CMOS) fabrication technology, several large-scale integrated silicon photonic phased arrays are demonstrated, including two passive-phased arrays (64 × 64 and 32 × 32) with the ability to generate complex holographic images, an 8 × 8 active phased array for dynamic optical beamforming, and an 8 × 8 active antenna array with amplitude apodization. These optical phased array demonstrations, with up to 12 000 integrated optical elements, represent the largest and densest silicon photonic circuits demonstrated to date.

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“…By apodizing the near field of an 8 × 8 array of emitters and using a similar silicon photonic OPA technology as that of Ref. [19], a clean Gaussian far-field beam shape was achieved, as also shown in Figure 6 [20]. The static, lithographically designed, amplitude control and the tunable phase control enable the generation of arbitrary optical beam profiles.…”

Section: Optical Phased Arrays With Individually Tunable Emittersmentioning

confidence: 88%

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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Two-dimensional apodized silicon photonic phased arrays

Cited by 71 publications

References 12 publications

Large-Scale Integrated Silicon Photonic Circuits for Optical Phased Arrays

Large-Scale Integrated Silicon Photonic Circuits for Optical Phased Arrays

Large-Scale Silicon Photonic Circuits for Optical Phased Arrays

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

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