Fused Silica Preforms for Specialty Fibers

There are a wide variety of applications for specialty fibers. For each of these applications a tailored fiber design is required for geometry, refractive index steps and transmission window. With our Fluosil® preforms, Heraeus Conamic is able to offer different solutions depending on your requirements.

We can offer different core materials depending on the wavelength you want to use and can apply from single to multiple layers with different refractive index steps. Finally, we can adjust the shape of core and cladding to your requirements.

In addition, we offer our Plasma Outside Deposition (POD) process as service to coat your own core rod with a highly fluorine doped layer.

If you need assistance or guidance, please give us a call.

A photo of a preform before being drawn into fibers

Product Benefits

  • High purity fused silica has a broad spectral transmission window, which makes it the material of choice for applications from the deep UV up to the infrared.
  • Due to its high purity Fluosil® synthetic fused silica preforms have a superior laser damage threshold for material processing with high power lasers.
  • Synthetic fused silica with highest purity is biocompatible and well suited for medical laser and minimal invasive surgeries.

Fields of Application

  • Minimally Invasive Surgeries

    For medical treatments the most common wavelengths are given below with suitable preform types. For tight bend radii also high NA versions are available.

    Preform Types

    Therapy

    Laser

    Laser Color

    Wavelength

    Preform Type

    Laser Coagulation

    KrF

    Dark Purple Laser

    248 nm

    SSU/SBU

    Treatment of UV light sensitive skin diseases

    XeCl

    Purple Laser

    308 nm

    SXU

    Dentistry

    Ar+

    Turquoise Laser

    488 nm

    SSU

    Benigne Prostata Hyperplasie

    NdYAG2F

    Green Laser

    532 nm

    SSU

    Photo Dynamic Therapy

    HeNe

    Red Laser

    633 nm

    SSU

    Ophthalmology

    NdYAG

    IR Laser

    1064 nm

    SWU

    Lithotripsy

    HoYAG

    IR Laser

    2100 nm

    SWU

  • Material Processing

    Laser systems are used more and more commonly for material processing. Independent from the laser source in most cases an optical fiber is used to transmit the laser light from the system to the point of use. Depending on beam quality, spot size and additional required features of the final fiber we can realize your design. Even custom tailored in small quantities.

    Wavelength Range

    Preform Type*

    UV (185-580 nm)

    SSU/SSS

    IR (700-2200 nm)

    SWU/SWS

    *SSU/SWU = single layer preform type / SSS/SWS = multi-layer preform type

  • Spectroscopic Applications

    Optical fibers for spectroscopic applications need to transmit the light from the source and signals back without introducing additional absorption lines.

    Preform Types

    Transmission Range

    Wavelength Associated

    Preform Type

    Broad spectral range

    350 - 2200 nm

    STU-D

    Deep UV / UV-Radiation hard

    185 - 580 nm

    SBU

    Infrared range

    700 - 2200 nm

    SWU

    Resistance against y-radiation

    185 - 580 nm

    STU-D / SSU

  • UV Bundle Applications

    For transmitting light in the deep UV range fused silica is the material of choice as it has a high resistance to UV radiation. It can be used for UV curing of adhesives or bundles for large homogenous spot sizes.

Webinar

Topic: Optical Fused Silica Large-Core Fibers - Influence of Design and Material on Fiber Performance

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