Evaluation of Coupling Coefficients for Laterally-Coupled Distributed Feedback Lasers

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概要

• 論文の詳細を見る

• Dependence of coupling coefficient, κ, on laterally-coupled distributed feedback (LC-DFB) laser structure is investigated. In LC-DFB lasers, gratings are fabricated on and around the ridge after ridge-waveguide formation and, thus, neither epitaxial regrowth nor growth on corrugated substrates is required. For κ calculation, coupled-mode theory is used with the two-dimensional field intensity calculated using the imaginary-distance beam propagation method. Comparisons are made for LC-DFB lasers with different layer, ridge and grating structures and parameters that affect κ are identified. In addition, it is shown that LC-DFB structure is less sensitive to processing variations and, thus, more manufacturable than a conventional buried heterostructure DFB structure.

• INSTITUTE OF PURE AND APPLIED PHYSICSの論文
• 1996-09-15

著者

• Choi Woo-young

  Department Of Electrical And Computer Engineering Yonsei University

• Fonstad Clifton

  Department Of Electrical Engineering And Computer Science And Research Laboratory Of Electronics Mas

• Chen Jerry

  Department Of Electrical Engineering And Computer Science Massachusetts Institute Of Technology

• Choi Woo-Young

  Department of Electronic Engineering, College of Engineering, Yonsei University

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