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Related Experiment Video

Updated: Jun 22, 2026

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

High-speed WDM-PON using CW injection-locked Fabry-Pérot laser diodes.

Zhaowen Xu, Yang Jing Wen, Wen-De Zhong

    Optics Express
    |June 18, 2009
    PubMed
    Summary
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    This study introduces a new WDM-PON architecture using injection-locked Fabry-Pérot laser diodes (FP-LDs) for 10 Gb/s transmissions. The novel design offers potentially low deployment costs and eliminates polarization dependence.

    Area of Science:

    • Optical Communications
    • Photonics Engineering
    • Telecommunications

    Background:

    • Wavelength Division Multiplexing Passive Optical Networks (WDM-PONs) are crucial for high-bandwidth fiber optic communication.
    • Traditional WDM-PON architectures often face challenges with cost and complexity.
    • Fabry-Pérot laser diodes (FP-LDs) offer a cost-effective alternative but require advanced modulation techniques.

    Purpose of the Study:

    • To propose and experimentally validate a novel WDM-PON architecture.
    • To investigate the modulation characteristics of continuous wave (CW) light injection-locked FP-LDs.
    • To assess the feasibility of high-speed (10 Gb/s) data transmission with reduced costs and polarization independence.

    Main Methods:

    • Utilizing continuous wave (CW) seed light for injection-locking Fabry-Pérot laser diodes (FP-LDs).

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    Last Updated: Jun 22, 2026

    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
    08:48

    Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

    Published on: November 22, 2019

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  • Experimentally demonstrating both uplink and downlink transmissions at 10 Gb/s.
  • Investigating the impact of FP-LD cavity mode location, transmission distance, and injection wavelength detuning.
  • Employing a depolarizer to experimentally demonstrate the elimination of polarization dependence.

    • Main Results:

    • Successfully demonstrated selective injection-locking of up to 16 laser cavity modes with a side mode suppression ratio exceeding 30 dB.
    • Achieved stable 10 Gb/s uplink and downlink transmissions.
    • Identified key parameters affecting transmission performance, including mode location, distance, and wavelength detuning.
    • Confirmed the elimination of polarization dependence through proper depolarizer configuration.

    Conclusions:

    • The proposed CW injection-locked FP-LD WDM-PON architecture enables high-speed 10 Gb/s data transmission.
    • The architecture offers potential for low deployment costs by sharing central office CW laser sources and using affordable FP-LDs.
    • The scheme effectively addresses polarization dependence, enhancing system robustness.