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All-optical binary counter based on semiconductor optical amplifiers.

Jing Wang1, Gianluca Meloni, Gianluca Berrettini

  • 1Department of Electronic Engineering, Tsinghua University, Beijing 100084, China. jwang1983@gmail.com

Optics Letters
|November 21, 2009
PubMed
Summary
This summary is machine-generated.

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This study demonstrates a cascadable all-optical binary counter using semiconductor optical amplifiers. The device enables tunable, reconfigurable optical frequency division and counting operations at high speeds.

Area of Science:

  • Optoelectronics
  • Digital Optics
  • Photonics

Background:

  • All-optical computing offers high-speed data processing potential.
  • Semiconductor optical amplifiers (SOAs) are key components for all-optical logic.
  • Cascadable optical counters are essential for advanced optical signal processing.

Purpose of the Study:

  • To demonstrate a cascadable all-optical binary counter.
  • To achieve optical frequency division using the proposed counter.
  • To evaluate the scheme's tunability, reconfigurability, and performance.

Main Methods:

  • Utilized optical flip-flops and logic gates based on semiconductor optical amplifiers.
  • Implemented a two-bit counting operation.
  • Performed optical-frequency division at two distinct frequencies.

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Main Results:

  • Successfully demonstrated a cascadable all-optical binary counter.
  • Showcased tunable operation across the C-band.
  • Achieved reconfigurable counting rates and optical frequency division.
  • Validated effectiveness in cascadable configurations via Q-factor analysis.

Conclusions:

  • The proposed all-optical binary counter is effective and suitable for cascadable configurations.
  • Photonic integration is a viable solution for exceeding gigahertz operational speeds.
  • The scheme offers tunable and reconfigurable optical counting and frequency division.