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

You might also read

Related Articles

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

Sort by
Same author

Comparison of lung scintigraphy with multi-slice spiral computed tomography in the diagnosis of pulmonary embolism.

Clinical nuclear medicine·2009
Same author

[Analysis on the characters of injuries in body surface and deduction of injury-causing instruments in 146 cases].

Fa yi xue za zhi·2009
Same author

Impact of ketone and amino on the inner shell of guanine.

Journal of synchrotron radiation·2009
Same author

Actin turnover is required for myosin-dependent mitochondrial movements in Arabidopsis root hairs.

PloS one·2009
Same author

Direct observation of a widely tunable bandgap in bilayer graphene.

Nature·2009
Same author

Investigation of second-order nonlinearity in poled-polymer during photobleaching.

Optics express·2009

Related Experiment Video

Updated: Sep 13, 2025

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

7.7K

Ultrawideband precise tunable wavelength-locked laser based on high-density integrated distributed feedback laser

Yaqiang Fan, Zilong He, Haolin Xia

    Optics Express
    |July 30, 2025
    PubMed
    Summary
    This summary is machine-generated.

    We developed an ultrawideband, tunable wavelength-locked distributed feedback (DFB) laser array. This precise laser array offers high performance for data centers and telecommunication networks.

    More Related Videos

    Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
    09:10

    Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

    Published on: April 24, 2014

    27.9K
    Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
    06:16

    Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

    Published on: April 25, 2019

    7.6K

    Related Experiment Videos

    Last Updated: Sep 13, 2025

    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

    7.7K
    Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
    09:10

    Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

    Published on: April 24, 2014

    27.9K
    Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing
    06:16

    Femtosecond Laser Filaments for Use in Sub-Diffraction-Limited Imaging and Remote Sensing

    Published on: April 25, 2019

    7.6K

    Area of Science:

    • Photonics
    • Semiconductor Lasers
    • Optical Communications

    Background:

    • Distributed feedback (DFB) lasers are crucial for wavelength division multiplexing (WDM) systems.
    • Precise wavelength control and wide tuning range are essential for advanced optical networks.

    Purpose of the Study:

    • To develop and demonstrate an ultrawideband, precisely tunable wavelength-locked DFB laser array.
    • To enhance fabrication simplicity and wavelength control accuracy.

    Main Methods:

    • Utilized the reconstruction equivalent chirp technique for grating fabrication.
    • Integrated a cascaded Y-branch for single-waveguide output and a semiconductor optical amplifier.
    • Implemented a wavelength-locked feedback control system with a Fabry-Perot etalon.

    Main Results:

    • Achieved an 8x4 DFB laser array with an 80 nm tuning range.
    • Demonstrated precise wavelength control (±0.2 nm deviation for >94% of units).
    • Attained high side-mode suppression ratio (>40 dB for >97%) and low relative intensity noise (< -130 dB/Hz).
    • Achieved 2 pm tuning accuracy in <250 µs and minimal wavelength drift (<10 pm over -10 to 70 °C).

    Conclusions:

    • The developed DFB laser array offers exceptional wavelength stability and precise tunability.
    • This technology is highly promising for future data centers, metropolitan transmission, and access networks utilizing dense WDM.