In this paper, we provide an overview and comparison of devices used for optical waveguide-to-waveguide coupling including inter-chip edge couplers,
Partially reflective mirrors, also known as partial reflectors, output couplers, or sometimes beamsplitters, are essential laser components for stable optical resonators.
In this article, we have proposed to optimize the reflection of the optical coupling of HNA fiber to an inverse taper edge coupler through the simulations of the coupling in the TMM.
An optocoupler, also known as photocoupler or opto-isolator, is a device which can transfer an electrical signal across two galvanically-isolated circuits by way of optical coupling.
The objective of this paper is to provide a review of the theory, techniques, and applications of optical couplers.
Optical crosstalk between waveguides limits the miniaturization of photonic integrated circuits. Recently, it has been shown that, using higher-order modes, the crosstalk can be
Grating coupling is a widely adopted strategy for coupling light into optical waveguides. While this versatile approach benefits both fabrication and
This article explains the significance of AR (Anti-Reflective) and BBAR (Broadband Anti-Reflective) coatings in enhancing optical performance, detailing
Understanding and implementing AR and BBAR coatings are essential for optimizing optical system performance and reducing unwanted reflections across
The significant changes in RIN and CNR of lensed-fiber coupling optics can be explained as the lensed fiber resulting poor misalignment tolerance, the lateral and longitudinal offset
One important issue of silicon photonics that comes with its high integration density is an interface between its high-performance integrated
Grating couplers are a fundamental building block of integrated optics as they allow light to be coupled from free-space to on-chip components and vice versa. A challenging task in designing
Grating couplers work under the former category, while edge couplers function as in-plane coupling. In this paper, we mainly focus on edge couplers in
Reflection of Light When light waves are incident on a smooth, flat surface, they reflect away from the surface at the same angle as they arrive. This
Application of optical property-enhancement film to improve efficiency and suppress angle dependence of top-emitting organic light-emitting diodes
An angled end face does not eliminate reflection. It suppresses back-coupling. By polishing the fiber end at a small angle (typically 8°), the reflected beam is no longer aligned with the...
After the object is reflected by the specular surface, the right-handed circularly polarized light to transform into left-handed circularly polarized light. Finally, a quarter-wave plate converts the
A grating coupler is defined as a device that uses a periodic structure to diffract light in and out of an optical fiber by directing vertically incident light into waveguides through the principle of diffraction. Its
The fiber in which the light enters is referred from now on as the active fiber, whereas the fiber in which the light is coupled is the passive fiber. The laser source provides the light for the active fiber, which
Additionally, optical circulator can be used to achieve bi-directional transmission over a single fiber. Because of its high isolation of the input and reflected optical
We investigate methods for reducing these spurious reflections in a generic integration technology. We present a novel MMI shape whose measurements show reduced reflections by 17.5 dB. Index
An opto-isolator contains a source (emitter) of light, almost always a near infrared light-emitting diode (LED), that converts electrical input signal into light, a closed
Optical couplers are passive devices that couple light through waveguides or fibers. They play a very important role in the applications of photonic devices and systems. Optical couplers are used in
One important issue of silicon photonics that comes with its high integration density is an interface between its high-performance integrated waveguide devices and optical fibers or free-space optics.
MULTIMODE interference couplers (MMIs) are fre-quently used as splitters and combiners in photonic integrated circuits (PICs). However, because they contain abrupt junctions, these components are
Part 8: Fiber Couplers and Splitters Figure 1: A 2-by-2 fiber coupler. When using fiber optics, one often needs to use fiber couplers for various purposes. Some
Highly demanding parameter specifications, such as loss, reflection, and bandwidth, drive the continuous search for optimization. The use of High Numerical Aperture Fibers (HNA fibers) to
As a consequence the light is scattered from the grating coupler with a negative angle, referred to as “backscattering design”.
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