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Proceedings Paper

Mode beating in tapered high-power lasers
Author(s): B. M. Azizur Rahman; Riyadh A Abdallah; Muttukrishnan Rajarajan; Anu Parameswaran; Kenneth T. V. Grattan
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Paper Abstract

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. Key words: Semiconductor Optical Amplifiers, Numerical Analysis, Finite element method, Beam propagation method.

Paper Details

Date Published: 18 August 2004
PDF: 10 pages
Proc. SPIE 5451, Integrated Optics and Photonic Integrated Circuits, (18 August 2004); doi: 10.1117/12.546511
Show Author Affiliations
B. M. Azizur Rahman, City Univ. London (United Kingdom)
Riyadh A Abdallah, City Univ. London (United Kingdom)
Muttukrishnan Rajarajan, City Univ. London (United Kingdom)
Anu Parameswaran, City Univ. London (United Kingdom)
Kenneth T. V. Grattan, City Univ. London (United Kingdom)

Published in SPIE Proceedings Vol. 5451:
Integrated Optics and Photonic Integrated Circuits
Giancarlo C. Righini; Seppo Honkanen, Editor(s)

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