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Related Experiment Video

Updated: Jun 11, 2026

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
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Published on: November 30, 2012

Optical waveguide laser using an rf sputtered Nd:glass film.

G R Robertson, P E Jessop

    Applied Optics
    |June 29, 2010
    PubMed
    Summary

    Neodymium-doped glass (Nd:glass) optical waveguides were fabricated on silicon substrates. These waveguides achieved lasing at 1.05 micrometers with a low dye laser pump threshold.

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    Area of Science:

    • Optoelectronics
    • Materials Science
    • Laser Physics

    Background:

    • Neodymium-doped glass (Nd:glass) is a key material for solid-state lasers.
    • Silicon photonics offers a platform for integrated optical devices.
    • Fabricating active optical components on silicon is challenging.

    Purpose of the Study:

    • To fabricate Nd:glass optical waveguides on silicon substrates.
    • To demonstrate lasing in these integrated waveguides.
    • To determine the lasing performance characteristics.

    Main Methods:

    • Radio frequency (rf) sputtering was employed to deposit Nd:glass films on silicon.
    • Optical waveguide structures were patterned on the deposited films.
    • A dye laser was used for optical pumping to achieve lasing.

    Main Results:

    • Successfully fabricated Nd:glass optical waveguides on silicon.
    • Achieved lasing at a wavelength of 1.05 micrometers.
    • Determined a low dye laser pump threshold of approximately 100 mW.

    Conclusions:

    • Nd:glass optical waveguides can be fabricated on silicon substrates using rf sputtering.
    • Integrated Nd:glass waveguides on silicon are capable of efficient lasing.
    • The demonstrated low pump threshold suggests potential for practical integrated laser devices.

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