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Proceedings Paper

Coupling of DBR tapered diode laser radiation into a single-mode-fiber at high powers
Author(s): D. Jedrzejczyk; P. Asbahr; M. Pulka; B. Eppich; K. Paschke
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Paper Abstract

In this work, we investigate experimentally coupling of diode laser radiation into a single-mode-fiber (SMF) at high optical power. In particular, nearly diffraction-limited, single-frequency continuous wave (CW) radiation around 1064 nm generated by a distributed Bragg reflector (DBR) tapered diode laser is coupled in a bench-top experiment into an SMF with a core diameter of approx. 6 μm. Misalignment tolerances for efficient SMF coupling are determined through two-dimensional coupling efficiency scans, conducted for an attenuated diode laser beam. The coupling efficiency and the laser beam properties behind the SMF are investigated in dependence on the optical power in front of the SMF. A maximum power ex fiber of 3.5 W at a coupling efficiency of 65 % is reached.

Paper Details

Date Published: 12 March 2014
PDF: 6 pages
Proc. SPIE 8965, High-Power Diode Laser Technology and Applications XII, 89651A (12 March 2014); doi: 10.1117/12.2036697
Show Author Affiliations
D. Jedrzejczyk, Ferdinand-Braun-Institut (Germany)
P. Asbahr, Ferdinand-Braun-Institut (Germany)
FCC FiberCableConnect GmbH (Germany)
M. Pulka, FCC FibreCableConnect GmbH (Germany)
B. Eppich, Ferdinand-Braun-Institut (Germany)
K. Paschke, Ferdinand-Braun-Institut (Germany)

Published in SPIE Proceedings Vol. 8965:
High-Power Diode Laser Technology and Applications XII
Mark S. Zediker, Editor(s)

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