Multidirectional Illuminating Optical Fiber Tip on Beam Expanding Coreless Silica Fiber

Author

Jun Ki Kim ; Jin Woo Choi ; Schwuchow, Anka ; Bartelt, Hartmut ; Tae-Hun Kim ; Woo June Choi ; Jae Young Kim ; Dong Uk Kim ; Seon Young Ryu ; Geon Hee Kim ; Ick-Hee Kim ; Ki Soo Chang

Author_Institution

Korea Basic Sci. Inst., Daejeon, South Korea

Volume

25

Issue

24

fYear

2013

fDate

Dec.15, 2013

Firstpage

2431

Lastpage

2434

Abstract

We report a compact all-optical side-firing probe directly ablated on a mode-expanded hybrid fiber end using a high-precision femtosecond laser processing technique. A segment of coreless silica fiber was adopted to achieve a large beam size and manipulation of the far field divergence angle. The radiating beam properties of the side-firing tip have been experimentally investigated and compared with numerical simulations.

Keywords

laser materials processing; optical fibres; silicon compounds; all-optical side-firing probe; beam expanding coreless silica fiber; far field divergence angle; high-precision femtosecond laser processing technique; mode-expanded hybrid fiber end; multidirectional illuminating optical fiber tip; radiating beam properties; side-firing tip; Fiber lasers; Laser beams; Optical fiber devices; Optical fibers; Probes; Surface emitting lasers; Ultrafast optics; Side-firing probe; coreless silica fiber (CSF); laser ablation; side emitting fiber;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2013.2287877

Filename

6654280