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Proceedings Paper

Optimization of grating depth and layer thicknesses for DFB lasers
Author(s): Ching Long Jiang; Rajiv Agarwal; Hide Kuwamoto; Rong-Ting Huang; Ami Appelbaum; Daniel S. Renner; Chin B. Su
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Paper Abstract

The novel concept of K-stabilizing layer is reported for the first time. The coupling coefficient (K) which determines the characteristics of distributed feedback laser diodes (DFB LDs) has been controlled by optimizing the grating depth and layer thicknesses. The coupling coefficient is less dependent on the variations of grating depth and layer thicknesses if an optimized K- stabilizing layer (lower index material like InP) is inserted between the active layer and the guide layer. The controllability of the coupling coefficient has been demonstrated by the standard deviation of the lasing wavelength and the threshold current across a wafer, 0.74 nm and 2.67 mA, respectively.

Paper Details

Date Published: 1 July 1991
PDF: 11 pages
Proc. SPIE 1418, Laser Diode Technology and Applications III, (1 July 1991); doi: 10.1117/12.43817
Show Author Affiliations
Ching Long Jiang, Rockwell International Corp. (United States)
Rajiv Agarwal, Rockwell International Corp. (United States)
Hide Kuwamoto, Rockwell International Corp. (United States)
Rong-Ting Huang, Rockwell International Corp. (Taiwan)
Ami Appelbaum, Rockwell International Corp. (Israel)
Daniel S. Renner, Rockwell International Corp. (United States)
Chin B. Su, Texas A&M Univ. (United States)


Published in SPIE Proceedings Vol. 1418:
Laser Diode Technology and Applications III
Daniel S. Renner, Editor(s)

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