Abstract. Diffractive optical neural networks (DONNs) have exhibited the advantages of parallelization, high speed, and low consumption. However, the existing DONNs based on free-space diffractive
With the growing demand for high-performance computing (HPC), artificial intelligence (AI), and data communication and storage, new chip
The fifteen papers in this special issue focus on ultra low loss planar waveguides and the applications. Ultra-low loss optical planar waveguide technology is a critical research area driven by
This new technology uses artificial intelligence (AI), specifically deep learning, to design a series of structured surfaces that guide light with high
The breakthrough fundamentally alters how nonlinear photonic devices operate, breaking the “one device, one function” paradigm, and
Here we present a photonic device with highly programmable nonlinear functionality: an optical slab waveguide with an arbitrarily
The integrated diffractive optical network (IDNN) chip demonstrates a promising avenue towards scalable and low-power-consumption optical computational chips for optical-artificial
Artificial gauge fields bridge vibrant fields of research in optics and photonics across both classical and quantum systems.
We report on the realization of an on-chip waveguide platform capable of creating arbitrary two-dimensional refractive index profiles in situ and in real-time. The device exhibits
This work provides a route for perspective applications of ultrafast optical analogue signal processing. 2 Structure Design and Working Principle The multifunctional tunable planar waveguide
The alignment coupling between optical waveguide chips and optical fiber arrays is the basis of the alignment coupling of planar optical waveguide devices, and the precise position
Edge devices require real-time processing of high-throughput analog signals. Here, authors present a photonic intelligence chip that fuses multiple analog signal types into optical
Waveguide-based devices also have extended into cutting-edge territories including quantum technology, artificial intelligence, virtual reality, 6G and millimeter-wave
The presented waveguides are suitable for on-chip out-of-plane light coupling as well as non-connected 3D crossings, needed for high density optical circuits.
Deposition of metal and dielectric layers allows the design of ''all optical'' device structures which must be capable of surviving harsh working conditions for both civilian and military
Artificial intelligence chips (AICs) are the intersection of integrated circuits and artificial intelligence (AI), involving structure design, algorithm
Recent years have witnessed substantial potential in allying meta-optics with diverse waveguide platforms to enable exotic manipulation of guided light signals. This review cataloged
In conclusion, planar waveguides are a crucial technology for the future of photonics, enabling high-speed data transfer, biosensing, and other applications. As research continues to
We introduce a device containing a planar waveguide whose spatial refractive index profile n (x, z) can be programmed in real time. We demonstrate use this device as an optical neural network.
A planar platform combining photonic integrated circuits and flip-chip bonded meta-surfaces for multi-color light projection, beam shaping, and polarization control for compact laser
Figure 1: Concept of the programmable planar waveguide. A: Device schematic showing how illuminated pattern on the top of the chip in situ sets the spatial
We examine the theoretical and practical challenges of modeling, fabrication, and control, and propose PWAs as a next-generation architecture for compact, reconfigurable photonic processors.
Explore the fundamentals of optical waveguides and their pivotal role in modern photonics. Learn about different types of waveguides, such as planar, fiber optic,
Currently, photonic devices based on planar waveguides have been widely used in fields such as arrayed waveguide gratings and integrated optical splitters. With the continuous
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