Taper Device for Tolerant Coupling of Free-Space Optical Beams Into Single-Mode Fiber

Author

Weinert, Carl M. ; Hiegemann, Stephan ; Perlot, Nicolas ; Rohde, M. ; Hoh, Denny ; Unger, Sebastian

Author_Institution

Heinrich Hertz Inst., Fraunhofer Inst. for Telecommun., Berlin, Germany

Volume

26

Issue

18

fYear

2014

fDate

Sept.15, 15 2014

Firstpage

1843

Lastpage

1846

Abstract

A new device for improving the free-space optical monitoring and coupling into a single mode fiber is proposed. It consists of a fiber taper, which can easily be drawn from a suitable fiber with large core radius. The taper acts as a mode filter discarding higher order modes. A first device is fabricated. Measurements show that lateral tolerances increase linearly with the taper input core radius and longitudinal tolerances increase with the square of the input core radius.

Keywords

optical fibre couplers; optical fibre fabrication; optical fibre filters; fiber taper device; free-space optical beams; free-space optical monitoring; longitudinal tolerance; mode filter; single-mode fiber; taper input core radius; tolerant coupling; Couplings; Laser beams; Measurement by laser beam; Optical beams; Optical fiber sensors; Optical fibers; Fiber coupling; optical fiber sensors; satellite communication; single-mode fibers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2337651

Filename

6861968