Mode beating in tapered high-power lasers

被引：0
|
作者：
Rahman, BMA [1 ]
Abdallah, R [1 ]
Rajarajan, M [1 ]
Parameswaran, A [1 ]
Grattan, KTV [1 ]
机构：
[1] City Univ London, Sch Engn & Math Sci, London EC1V 0HB, England
来源：
APPLICATIONS OF PHOTONIC TECHNOLOGY, CLOSING THE GAP BETWEEN THEORY, DEVELOPMENT, AND APPLICATION, PT 1 AND 2 | 2004年 / 5577卷
关键词：
semiconductor optical amplifiers; numerical analysis; finite element method; beam propagation method;
D O I：
10.1117/12.567444
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The evolution of the optical beam profile along a high-power tapered semiconductor amplifier has been demonstrated by using a rigorous finite element-based and full-vectorial modal solution, coupled with the beam propagation approach. Numerically simulated results indicate that many higher order modes are generated and propagate along the tapered structure and their interference with the fundamental mode causes variations of the optical beam, both along the transverse and the axial directions, which significantly modify the output beam quality.
引用
收藏
页码：36 / 47
页数：12
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