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Related Experiment Video

Updated: Jun 22, 2026

Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope
12:54

Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

Published on: July 17, 2016

Single-transverse-mode Ti:sapphire rib waveguide laser.

C Grivas, D Shepherd, T May-Smith

    Optics Express
    |June 3, 2009
    PubMed
    Summary
    This summary is machine-generated.

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    Researchers report laser operation in Ti:sapphire rib waveguides. These waveguides show a lower pump power threshold and single-transverse-mode emission, advancing integrated photonics for tunable laser sources.

    Area of Science:

    • Materials Science
    • Optics and Photonics
    • Integrated Photonics

    Background:

    • Ti:sapphire (titanium-doped sapphire) is a crucial gain medium for tunable lasers.
    • Fabricating low-loss waveguides is essential for miniaturizing laser devices.
    • Previous efforts focused on planar waveguides, limiting device integration and efficiency.

    Purpose of the Study:

    • To demonstrate laser operation in Ti:sapphire rib waveguides.
    • To investigate the performance of these novel waveguide structures.
    • To compare their efficiency and beam quality against planar waveguides.

    Main Methods:

    • Ti:sapphire layers were deposited using pulsed laser deposition.
    • Photolithography and ion beam etching were employed to define rib waveguide structures.

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    Last Updated: Jun 22, 2026

    Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope
    12:54

    Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

    Published on: July 17, 2016

    Gradient Echo Quantum Memory in Warm Atomic Vapor
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  • Laser emission characteristics were measured under optical pumping.

    • Main Results:

    • Polarized laser emission was achieved at 792.5 nm.
    • An absorbed pump power threshold of 265 mW was observed, over two times lower than planar waveguides.
    • Single-transverse-mode emission was confirmed with M2 factors of 1.3 and 1.2.
    • A quasi-continuous-wave output power of 27 mW and a slope efficiency of 5.3% were obtained.

    Conclusions:

    • Ti:sapphire rib waveguides offer significantly improved laser performance compared to planar structures.
    • The fabrication method enables efficient integrated laser sources.
    • This work paves the way for compact and tunable Ti:sapphire laser devices.