Analysis of the performance of tapered semiconductor optical amplifiers: role of the taper angle

The role of the taper angle in the performance of tapered semiconductor optical amplifiers emitting at 1.57  μ m is analyzed by means of simulations with a self-consistent steady state electro-optical and thermal simulator. The results indicate that the self-focusing caused by carrier lensing is del...

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Bibliographic Details
Published in:Optical and quantum electronics 2015-06, Vol.47 (6), p.1437-1442
Main Authors: Tijero, J. M. G., Borruel, L., Vilera, M., Perez-Serrano, A., Esquivias, I.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Computer Communication Networks
Electrical Engineering
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
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Summary:The role of the taper angle in the performance of tapered semiconductor optical amplifiers emitting at 1.57  μ m is analyzed by means of simulations with a self-consistent steady state electro-optical and thermal simulator. The results indicate that the self-focusing caused by carrier lensing is delayed to higher output powers for devices with taper angle slightly higher than the free diffraction angle and therefore a higher power with beam quality is attainable with these devices at the expenses of a lower efficiency.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-014-0108-8