✦ LIBER ✦

Fiber laser based on 4-core Yb-doped fiber and multimode Bragg grating

✍ Scribed by A. S. Kurkov; V. M. Paramonov; E. M. Dianov; V. A. Isaev; G. A. Ivanov

Publisher: John Wiley and Sons
Year: 2006
Tongue: English
Weight: 205 KB
Volume: 3
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.200610027

No coin nor oath required. For personal study only.

✦ Synopsis

We have realized and studied the fiber laser based on
4-core Yb-doped fiber and multimode Bragg grating as the input
reflector. The lasing efficiency slope of 55% was measured. An
investigation of the output emission has shown that the far-field
pattern constitutes an interference picture. That allows us to
conclude that the multimode Bragg grating provides phase locking
of 4 lasers utilizing the different active cores. A coherent
length of laser is longer than possible difference between optical
ways of different active cores.

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