Mr. Ivo Bruvers Profile

Ivo Bruvers

at LightGuideOptics International Ltd

SPIE Involvement:

Author

Publications (2)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 12 March 2024 Paper

Cutting-edge fused end fiber bundle technology for multi kW range applications

K. Alps, I. Brūvers, J. Grūbe, M. Narels

Proceedings Volume 12866, 1286603 (2024) https://doi.org/10.1117/12.3000484

KEYWORDS: Silica, Optical fibers, Laser irradiation, Temperature metrology, Structured optical fibers, Reflection, Laser damage threshold, Continuous wave operation, Interfaces, Thermography

Read Abstract +

The latest technology silica/silica, step-index multimode fiber bundle end treatment technology shows outstanding transmission all over the spectral range of silica material transparency. Fibers are fused in a honeycomb-like structure with a fill factor close to one while the fused end of the bundle is surrounded by a low refractive index medium. This allows us to consider the utility of new fiber bundles for low-loss, high-power applications where all until now-known fiber bundle end treatment technologies would fail. Large active area bundles remain flexible as they are loose along the longitudinal axis and only the tip of bundled fibers at the length are fused a few centimeters. Active areas can be shaped mixing curvatures, positive and negative angles with high repeatability and negligible deformations of individual fibers to fit the output of the source giving an advantage of expensive silica material economy. Furthermore, mirroring the shape of the light source output to bundle input benefits coupling efficiency especially for high NA (Numerical Aperture) coupling. This can increase output power density while the construction of the fused fiber bundle end allows designs with good heat management options. There are continued studies of Clad Fused Bundle (CFB) end treatment technology in this paper focusing on destructive tests and laser power threshold values at NIR (Near Infrared) with CW (Continuous Wave) sources. During the tests laser power is gradually increased to several kW and fiber bundle temperature changes are observed.

Proceedings Article | 14 March 2023 Presentation + Paper

Innovative fused end fiber bundle technology for high-brightness, irregular beam profiles

K. Alps

Proceedings Volume 12403, 124030N (2023) https://doi.org/10.1117/12.2648342

KEYWORDS: Silica, Cladding, Incident light, Polymers, Reflection, Structured optical fibers, Refractive index, Capillaries, Glasses, Light absorption

Read Abstract +

Innovative technology dispels the myth, that silica/silica, step index, multimode fiber bundles are lossy. This technology provides a number of gains, allowing to push the boundaries in fiber bundling technology: freedom of fiber bundle end shapes and dimensions, wide angle of light acceptance cone, what is described by high numerical aperture (NA) values, packing of fibers in honeycomb-like structures with fill factors close to 1, utility of low refractive index surrounding medium and good heat management of mis-coupled light. The latest technology allows the design of larger NA light coupling systems gaining output power density. Both are studied in this paper – high-OH and low-OH content core - fiber bundles, evaluating performance at high power, large angle of incidence (AOI) light sources. For comparison purposes various fiber bundles were produced differing by utilized bundle end treatment technology. There are compared four different fiber bundle end treatment technologies - glued, fused in silica capillary tube and two latest technology options. There is a proposed transmission measurement setup, that allows a change NA of incident light coupled in the fiber bundle from 0.10 to 0.60. Measurement data at ultraviolet (UV), visible (VIS) and near-infrared (NIR) wavelengths are compiled in graphs for comparison purposes. Results show that the new generation fiber bundles are suitable for low loss applications as the source to fiber bundle coupling is improved when compared with any known fiber bundle end treatment technology. Finally, the new technology allows the implementation of cladding mode stripping – this technology was not possible to utilize with previous generation fiber bundles.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years