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Proceedings Paper

Coupled mode analysis of second order loss-coupled DFB lasers
Author(s): Abdolnasser Zakery; R. Zare; Aref Bakhtazad
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Paper Abstract

The superiority of gain or loss-coupled DFB lasers over the index coupled ones are evident in many respects. However the fabrication of first order gain or loss coupled gratings involves many difficulties. Therefore we are practically restricted to employing higher order gain or loss-coupled gratings. One of the main disadvantages of higher order gratings is radiation losses. To take into account both the effects of higher order modes on coupling and losses in linear regime, we apply a well-known coupled wave analysis due to Striefer et al. In 1977 to loss coupled DFB lasers. This theory using the first order perturbation analysis is suitable for analyzing shallow gratings. It leads to a pair of coupled wave equations, where coefficients indicate all the possible coupling losses.

Paper Details

Date Published: 24 September 1996
PDF: 12 pages
Proc. SPIE 2886, Semiconductor Lasers II, (24 September 1996); doi: 10.1117/12.251884
Show Author Affiliations
Abdolnasser Zakery, Shiraz Univ. (Iran)
R. Zare, Shiraz Univ. (Iran)
Aref Bakhtazad, Shiraz Univ. (Iran)

Published in SPIE Proceedings Vol. 2886:
Semiconductor Lasers II
Siamak Forouhar; Qiming Wang, Editor(s)

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