DFB Lasers with Tilted Waveguide for Multi-Wavelength Generation

Lip Fah Chong; Jing Hua Teng; Ee Leong Lim; Norman Soo Seng Ang; J.R. Dong; Soo Jin Chua

doi:10.4028/www.scientific.net/AMR.31.36

Paper Titles

Raman Scattering from GaAs Nanowires Grown by Molecular Beam Epitaxy
p.23

Design and Analysis of 2D Photonic Crystal Waveguides for High Coupling Efficiency
p.27

Novel Passivation Method in the Fabrication of Submicron InGaAsP/InP Ridge Waveguide Lasers
p.30

Sputtered SiO₂ Induced Atomic Interdiffusion in Semiconductor Nano Heterostructures
p.33

DFB Lasers with Tilted Waveguide for Multi-Wavelength Generation
p.36

Enhanced UV Photodetector Responsivity in Porous GaN/Si(111) by Metal-Assisted Electroless Etching
p.39

Growth, Surface Morphology and Optical Properties of Gallium Nitride Nanowires
p.42

Optical Reﬂection from a Monolayer of Embedded Nano-Objects Covered by a Thick Capping Layer
p.52

Visible Light Emission from Ordered Nanopatterned InP Surface
p.56

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 31DFB Lasers with Tilted Waveguide for...

DFB Lasers with Tilted Waveguide for Multi-Wavelength Generation

Abstract:

In this paper, we present the theoretical investigation of index-coupled distributed feedback (DFB) laser with tilted single mode ridge waveguides. By tilting part of the ridge waveguide in various degrees, DFB laser with manifold effective grating periods can be realized. The structure is analyzed using couple mode theory in matrix form based on threshold analysis. Important parameters of DFB laser like resonant frequency and threshold gains are obtained by solving the eigen-equation. The results indicate not only that the lasing frequency is modulated by the waveguide titling angle, but also large Gain Margin (GM) can be achieved at the threshold condition which enhance the stable single mode operation in index-coupled DFB laser.