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Related Concept Videos

Network Function of a Circuit01:25

Network Function of a Circuit

Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros.
Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.

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Related Experiment Video

Updated: May 15, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

A multi-ring optical packet and circuit integrated network with optical buffering.

Hideaki Furukawa1, Satoshi Shinada, Takaya Miyazawa

  • 1National Institute of Information and Communications Technology, 4-2-1, Nukui-Kitamachi, Koganei, Tokyo 184-8795, Japan. furukawa@nict.go.jp

Optics Express
|December 25, 2012
PubMed
Summary
This summary is machine-generated.

A new 3x3 optical switch node with integrated buffers and amplifiers enables robust data transmission. This system successfully demonstrated error-free transmission of optical paths and packets over 244 km, confirming collision avoidance.

More Related Videos

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Related Experiment Videos

Last Updated: May 15, 2026

Quasi-light Storage for Optical Data Packets
07:45

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Area of Science:

  • Optical networking
  • Telecommunications engineering

Background:

  • Optical packet and circuit switching is crucial for high-speed data networks.
  • Existing systems face challenges with packet collisions and loss.
  • Integrated solutions are needed to enhance network efficiency and reliability.

Purpose of the Study:

  • To develop and test a novel 3x3 integrated optical packet and circuit switch-node.
  • To evaluate the performance of optical buffers and gain-flattened erbium-doped fiber amplifiers in a network setting.
  • To demonstrate long-haul, multi-node transmission of combined optical paths and packets.

Main Methods:

  • Development of a 3x3 switch-node incorporating optical buffers and burst-mode EDFA.
  • Construction of a multi-ring optical network testbed integrating the switch-node.
  • Demonstration of 244 km fiber transmission with 5-node hopping.
  • Transmission of multiplexed 14-wavelength 10 Gbps optical paths and 100 Gbps optical packets.

Main Results:

  • Achieved error-free operation (FER < 1 × 10^-4) for optical packets of varying lengths.
  • Successfully demonstrated 244 km fiber transmission and 5-node hopping.
  • Confirmed effective packet collision avoidance using integrated optical buffers.
  • Validated the performance of gain-flattened amplifiers in burst mode.

Conclusions:

  • The developed 3x3 integrated optical switch-node effectively manages optical packet and circuit traffic.
  • Optical buffers are critical for preventing packet collisions and reducing loss in high-speed networks.
  • The testbed successfully demonstrated the feasibility of long-distance, multi-node transmission of hybrid optical traffic.