Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2337651
