Fused Silica Preforms for Specialty Fibers

Specialty Fiber Preforms

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.
 More information about our POD Service

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

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 Applications

Attenuation of Specialty Fiber Preforms for Medical Applicatons

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

 More information about Specialty Fibers for Medical Laser Systems

 Brochure: Specialty Fiber Preforms for Medical Applications

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

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.

 More information about Material Processing

 Brochure: Specialty Fiber Preforms for Industrial Applications

Preform Types:

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

Attenuation of Specialty Fiber Preforms for Spectroscopic Applicatons

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

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.

 More information about UV Bundle Applications

Optical Fiber


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