Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Feature Issues

Phase locking of an array of three fiber lasers by an all-fiber coupling loop

Bing Lei and Ying Feng

Open Access Open Access

Abstract

Constructing a phase-locking array of fiber lasers by an all-fiber coupling loop is presented, and the loop is composed of multiple 2×2 fiber couplers which are connected with the output ends of component fiber lasers of the array. Due to the mutual injection locking among the fiber lasers by the coupling loop, they can achieve the phase-locking states and then are coherently combined in the far field. Phase locking of an array of three fiber lasers with this configuration has been demonstrated experimentally, and obvious interference patterns and stable coherent output have been observed.

©2007 Optical Society of America

Full Article  |  PDF Article
More Like This
Phase locking a fiber laser array via diffractive coupling

Eitan Ronen and Amiel A. Ishaaya
Opt. Express 19(2) 1510-1515 (2011)

Coherence properties of two fiber lasers coupled by mutual injection

Sandrine Auroux, Vincent Kermène, Agnès Desfarges-Berthelemot, and Alain Barthélémy
Opt. Express 17(20) 17694-17699 (2009)

Coherent power combination of two Master-oscillator-power-amplifier (MOPA) semiconductor lasers using optical phase lock loops

Wei Liang, Naresh Satyan, Amnon Yariv, Anthony Kewitsch, George Rakuljic, Firooz Aflatouni, Hossein Hashemi, and Jeffrey Ungar
Opt. Express 15(6) 3201-3205 (2007)

View More...

Cited By

Optica participates in Crossref's Cited-By Linking service. Citing articles from Optica Publishing Group journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)
Fig. 1.
Fig. 1. Experimental setup of phase locking array of three fiber lasers with an all-fiber coupling loop (marked in blue line). LD, 980nm laser diode; WDM, wavelength division multiplexer.

Download Full Size | PDF

Fig. 2.
Fig. 2. The interference patterns of output lasers recorded by LBA. The truncation appeared in Fig. 2(a) and 2(b) is owing to the saturation of the infrared CCD. In fact, to avoid obvious saturation of the CCD, for its dynamic response range is limited, Fig. 2(a) is recorded when the attenuating system is much stronger than Fig. 2(b)–2(d) are recorded. The unit of coordinates in Fig. 2(f) is the waist radius of Gaussian beam, and its size in our fiber laser is nearly 0.25mm after the collimator.

Download Full Size | PDF

Fig. 3.
Fig. 3. (a) The typical spectrums of laser1, laser2, laser3 and phase locking array, which are shown in color red, blue, green and black. This Fig. is obtained by superposing four original Figs. together in one coordinates for the purpose of comparison and saving space of the paper. (b) The equivalent sketch of the experimental setup shown in Fig. 1.

Download Full Size | PDF

Fig. 4.
Fig. 4. The scaling scheme of multiple fiber lasers.

Download Full Size | PDF

Select as filters
Select Topics Cancel
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use