Influence of mode distortion on the transverse mode competition in large-mode-area amplifiers

被引：14

作者：

Liao, Suying ^{[1
]}

Gong, Mali ^{[1
]}

Zhang, Haitao ^{[1
]}

机构：

[1] Tsinghua Univ, Ctr Photon & Elect, State Key Lab Tribol, Dept Precis Instruments & Mechanol, Beijing 100084, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2009年 / 282卷 / 03期

关键词：

Fiber amplifier; Large-mode-are; Mode distortion; Transverse mode competition; BEND-DISTORTION; FIBERS; DESIGN;

D O I：

10.1016/j.optcom.2008.10.029

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In large mode area fiber amplifier, it is difficult to avoid the bend induced mode distortion. With the existence of mode distortion taken into account, a previous transverse mode competition model has been improved. Based on this model and the finite element difference-beam propagation method, the behaviors of bent mode competition are demonstrated and compared with the straight mode competition where the mode distortion is neglected, the comparison and quantitative results show that serious mode distortion can change the appearance of transverse mode competition in bent fiber amplifiers and even drastically degrade the amplifier performance. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：406 / 412

页数：7

共 13 条

[1]

ALVAREZCHAVEZ JA, 1999, P C LAS EL CLEO, P247

[2] Bend-compensated design of large-mode-area fibers [J].