Fused side-coupler for double-clad fiber lasers
-
1.
Center for Photonics and Electronics, Department of Precision Instruments, Tsinghua University, Beijing 100084, China;
-
2.
School of Instrument Science and Opto-electronic Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
-
Received Date:
2006-11-20
Accepted Date:
2006-12-21
-
Abstract
In order to overcome the decline of side-coupler under high-power pumping conditions,in which the index-matching materials cannot endure high-power light and will decompose,a novel method using CO2 laser to make fused side-coupler was introduced.The experimental equipments and making processes for such fused side-coupler was included.This kind of fused side-coupler can endure high-power light without index-matching materials.It acquired coupling power 7.23W and coupling efficiency better than 70.5%,when the fused side-coupler was pumped by a high-power laser diode arrays in experiments.These results showed that this kind of fused side-coupler was able to used in high-power side-pumped double-clad fiber lasers practically.
-
-
References
|
[1]
|
GOLDBERG L,COLE B,SNITZER E.V-groove side-pumped 1.5μm fibre amplifier[J].Electron Lett,1997,33(25):2127-2129. |
|
[2]
|
KOPLOW J P,MOORE S W,KLINER D A V.A new method for side pumping of double-clad fiber sources[J].IEEE J Q E,2003,39(4):529-540. |
|
[3]
|
OU P,YAN P,GONG M L,et al.Multi-coupler side-pumped Yb-doped double-clad fiber laser[J].Chinese Optics Letters,2004,2(5):285-287. |
|
[4]
|
YAN P,GONG M L,LI Ch,et al.Distributed pumping multifiberseries fiber laser[J].Optics Express,2005,13(7):2699-2706. |
|
[5]
|
OU P,YAN P,GONG M L,et al.Optimum design on three-position-pumped high-power double-clad fiber laser[J].Laser Technology,2007,31(1):57-60(in Chinese). |
|
[6]
|
WEI W L,OU P,YAN P,et al.Side-pumping coupler technology for double-clad fiber[J].Laser Technology,2004,28(4):116-121(in Chinese). |
|
[7]
|
XU J Q,LU J H,KUMAR G,et al.A non-fused fiber coupler for side-pumping of double-clad fiber lasers[J].Opt Commun,2003,220:389-395. |
|
[8]
|
OU P,YAN P,GONG M L,et al.Studies of pump light leakage out of couplers for multi-coupler side-pumped Yb-doped double-clad fiber lasers[J].Opt Commun,2004,239:421-428. |
|
[9]
|
OU P,YAN P,GONG M L,et al.Coupling efficiency of angle-polished method for side-pumping technology[J].Opt Engng,2004,43(4):816-821. |
|
[10]
|
FUJITA H,SUZAKI Y,TACHIBANA A.Optical fiber splicing technique with a CO2 laser[J].Appl Opt,1976,15(2):320-321. |
|
[11]
|
EGASHIRA K,KOBAYASHI M.Optical fiber splicing with a low-power CO2 laser[J].Appl Opt,1977,16(6):1636-1638. |
-
-
Proportional views
-
Map
DownLoad: