Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Design Example

Design Example

The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

[Influence of sampling satisfaction using endometrial sampling device and related factors for pathology diagnostic accordance rate].

Zhonghua fu chan ke za zhi·2014

Same author

Effect of the number of positive lymph nodes and lymph node ratio on prognosis of patients after resection of pancreatic adenocarcinoma.

Hepatobiliary & pancreatic diseases international : HBPD INT·2014

Same author

Mechanisms of human erythrocytic bioactivation of nitrite.

The Journal of biological chemistry·2014

Same author

Simulation research on the natural degradation process of PBDEs in soil polluted by e-waste under increased concentrations of atmospheric O(3).

Chemosphere·2014

Same author

Two-dimensional colloidal crystal assisted formation of conductive porous gold films with flexible structural controllability.

Journal of colloid and interface science·2014

Same author

REDD1 attenuates cardiac hypertrophy via enhancing autophagy.

Biochemical and biophysical research communications·2014

Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026

Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026

Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026

Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026

Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026

Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Aug 27, 2025

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

In-fiber duplex optical antenna and its programmable spectral filter application.

Qinggguo Song, Yuze Dai, Xiangpeng Xiao

|October 1, 2022

Summary

This summary is machine-generated.

We developed a novel in-fiber duplex optical antenna using a 45° radiated tilted fiber grating (RTFG). This device efficiently couples light between fiber and free space, enabling programmable spectral filtering with a compact design.

More Related Videos

Writing Bragg Gratings in Multicore Fibers

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Related Experiment Videos

Last Updated: Aug 27, 2025

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

Writing Bragg Gratings in Multicore Fibers

Writing Bragg Gratings in Multicore Fibers

Published on: April 20, 2016

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Area of Science:

Optics
Photonics
Fiber Optics

Background:

Traditional optical filters often lack compactness and programmability.
Efficient light coupling between optical fibers and free space is crucial for various photonic applications.

Purpose of the Study:

To propose and theoretically analyze an in-fiber duplex optical antenna based on a 45° radiated tilted fiber grating (RTFG).
To demonstrate a programmable spectral filtering system utilizing the developed RTFG antenna.

Main Methods:

Utilized the finite difference time domain (FDTD) method for theoretical analysis.
Simulated light recoupling efficiency and spectral filtering characteristics of the RTFG antenna.

Main Results:

Achieved a maximum light coupling efficiency of 10% for the RTFG-based optical antenna.
Demonstrated programmable spectral filtering with arbitrary spectral shapes, 0.4 nm spectral resolution, and ~20 dB insertion loss.

Conclusions:

The 45° RTFG serves as an effective in-fiber duplex optical antenna for bidirectional light coupling.
The proposed system offers a compact and programmable alternative to traditional spectral filters.