Title :
Analysis of Slot Characteristics in Slotted Single-Mode Semiconductor Lasers Using the 2-D Scattering Matrix Method
Author :
Lu, Q.Y. ; Guo, W.H. ; Phelan, R. ; Byrne, D. ; Donegan, J.F. ; Lambkin, P. ; Corbett, B.
Author_Institution :
Sch. of Phys., Trinity Coll., Dublin
Abstract :
We use the two-dimensional (2-D) scattering matrix method (SMM) to analyze the slot characteristics in slotted single-mode semiconductor lasers and compare the results with those calculated by the one-dimensional transfer matrix method (TMM). The analysis shows that the 2-D SMM is required to accurately account for the measured results. Using the 2-D SMM simulation, we find that there is almost no reflection at the interface from slot to waveguide while a large reflection exists at the interface from waveguide to slot, and the power loss is much larger than the power reflected. For a single slot, the slot width has little influence on the slot reflectivity, which coincides with the measured results. The reflection and transmission of the slot are found to be exponentially dependent on the slot depth
Keywords :
laser modes; light reflection; light scattering; matrix algebra; optical losses; reflectivity; semiconductor lasers; waveguide lasers; light reflection; power loss; semiconductor lasers; single-mode lasers; slot characteristics; slot reflectivity; slotted lasers; two-dimensional scattering matrix method; waveguide-slot interface; Distributed feedback devices; Electromagnetic scattering; Laser feedback; Laser modes; Optical reflection; Particle scattering; Semiconductor lasers; Transmission line matrix methods; Two dimensional displays; Waveguide lasers; Perfectly matched absorption layers (PMLs); scattering matrix method; semiconductor lasers; single-mode laser; transfer matrix method;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.887328
