Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Maximum Power Transfer01:16

Maximum Power Transfer

285
Numerous practical applications within engineering disciplines, such as telecommunications, necessitate optimizing power delivery to a connected load. This pursuit, however, entails inherent internal losses, which can either equal or exceed the power supplied to the load. The Thevenin equivalent circuit is helpful in finding the maximum power a linear circuit can deliver to a load. It is assumed in this context that the load resistance can be adjusted.
By substituting the entire circuit with...
285
Transmission Line Design Considerations01:23

Transmission Line Design Considerations

164
Aluminum has become the material of choice for overhead transmission lines, surpassing copper due to its abundance and cost-effectiveness. The most prevalent type is the aluminum conductor, steel-reinforced (ACSR), which combines aluminum strands around a steel core. Other variants include all-aluminum conductors (AAC), all-aluminum alloy conductors (AAAC), aluminum conductor alloy-reinforced (ACAR), and aluminum-clad steel conductors. Advanced designs, such as aluminum conductors with steel...
164
Power Distribution in Three-phase and Single Phase Circuits01:17

Power Distribution in Three-phase and Single Phase Circuits

340
Power distribution within electrical circuits is a foundational aspect of residential and industrial energy systems. While single-phase power is common in residential settings, three-phase power is the standard for industrial environments with heavy machinery. Each system is different and has advantages, and it's crucial to understand the underlying principles of power distribution and material efficiency.
Single-Phase Power Distribution:
Single-phase circuits are typical in household...
340
Power System Three-Phase Short Circuits01:21

Power System Three-Phase Short Circuits

108
Determining the subtransient fault current in a power system involves representing transformers by their leakage reactances, transmission lines by their equivalent series reactances, and synchronous machines as constant voltage sources behind their subtransient reactances. In this analysis, certain elements are excluded, such as winding resistances, series resistances, shunt admittances, delta-Y phase shifts, armature resistance, saturation, saliency, non-rotating impedance loads, and small...
108
Voltage Dividers01:14

Voltage Dividers

542
In electrical circuits, resistors can be connected in series, sequentially linked one after the other. In a series configuration, the same current flows through each resistor. Ohm's law is a fundamental principle to understand the behavior of resistors in series. It expresses the voltage across these resistors in terms of the current and resistance.
Kirchhoff's voltage law implies that the sum of the voltages across the resistors in series equals the source voltage. This means that the...
542
Induced Electric Dipoles01:28

Induced Electric Dipoles

4.3K
A permanent electric dipole orients itself along an external electric field. This rotation can be quantified by defining the potential energy because the external torque does work in rotating it. Then, the potential energy is minimum at the parallel configuration and maximum at the antiparallel configuration. While the former is a stable equilibrium, the latter is an unstable equilibrium.
Since the absolute value of potential energy holds no physical meaning, its zero value can be chosen as per...
4.3K

You might also read

Related Articles

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

Sort by
Same author

Space and wavelength multiplexing of holographic fields in longitudinal and transverse planes using waveguide metasurfaces.

Optics express·2026
Same author

Does Concomitant Biceps Tenotomy Affect Shoulder Proprioception and Strength? A Prospective Intra‑Individual Comparison After Arthroscopic Rotator Cuff Repair.

Medical science monitor : international medical journal of experimental and clinical research·2025
Same author

Latissimus dorsi tendon transfers for irreparable rotator cuff tears after inferior glenohumeral dislocation: a rare case report.

JSES reviews, reports, and techniques·2025
Same author

The impact of early weight-bearing on results following anterior cruciate ligament reconstruction.

BMC musculoskeletal disorders·2024
Same author

Deep learning-assisted light sheet holography.

Optics express·2024
Same author

Integrated particle image velocimetry and fluid-structure interaction analysis for patient-specific abdominal aortic aneurysm studies.

Biomedical engineering online·2023

Related Experiment Video

Updated: Jul 16, 2025

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
11:21

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

Published on: March 30, 2017

7.5K

Short, broadband, and polarization-insensitive adiabatic Y-junction power splitters.

Can Ozcan, Mo Mojahedi, J Stewart Aitchison

    Optics Letters
    |September 14, 2023
    PubMed
    Summary

    Researchers optimized adiabatic Y-junction power splitters using a nonlinear taper profile, significantly shortening device length without increased loss. This advancement offers efficient optical power splitting for integrated photonics.

    More Related Videos

    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
    10:17

    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

    Published on: July 12, 2017

    11.6K
    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
    00:07

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

    Published on: September 5, 2019

    8.5K

    Related Experiment Videos

    Last Updated: Jul 16, 2025

    Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
    11:21

    Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving

    Published on: March 30, 2017

    7.5K
    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
    10:17

    20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

    Published on: July 12, 2017

    11.6K
    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
    00:07

    A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference

    Published on: September 5, 2019

    8.5K

    Area of Science:

    • Integrated photonics
    • Waveguide devices
    • Optical signal processing

    Background:

    • Adiabatic Y-junction power splitters offer excellent performance characteristics including low loss, broad bandwidth, and polarization insensitivity.
    • A key limitation of adiabatic power splitters is their typically long device lengths, which can be challenging for compact integrated photonic circuits.
    • Nonlinear taper profiles present a potential solution for reducing the physical footprint of these devices.

    Purpose of the Study:

    • To develop and demonstrate a method for significantly reducing the length of adiabatic Y-junction power splitters.
    • To maintain or improve the low loss and balanced splitting performance of these devices after length reduction.
    • To validate the optimized designs experimentally on a silicon-on-insulator (SOI) platform.

    Main Methods:

    • Development of a taper profile optimization algorithm utilizing polynomial functions.
    • Fabrication of adiabatic power splitters with varying minimum feature sizes (80 nm, 120 nm, 160 nm) on a 220 nm SOI platform.
    • Experimental characterization of device performance, including insertion loss, transmission, and spectral response for both transverse electric (TE) and transverse magnetic (TM) modes.

    Main Results:

    • The optimized nonlinear taper profile successfully reduced the required transition lengths of adiabatic power splitters.
    • A device with a 120 nm minimum feature size achieved a compact length of 14 µm.
    • Measured losses were as low as 0.25 dB (TE) and 0.23 dB (TM) in the 1500-1600 nm wavelength range.
    • Average transmission of -3 ± 0.5 dB demonstrated highly balanced power splitting across a wide spectral range.

    Conclusions:

    • The polynomial-based taper profile optimization algorithm effectively shortens adiabatic Y-junction power splitters without compromising optical performance.
    • The demonstrated devices show excellent low-loss and balanced splitting characteristics, suitable for various integrated photonic applications.
    • This approach enables the creation of more compact and efficient power splitters on the SOI platform.