Focusing properties of semiconductor lasers with broad-area and shaped unstable resonator

Focusing properties of semiconductor lasers with broad-area and shaped unstable resonator

Negative branch unstable resonators, with different magnifications, have been fabricated and analyzed. Investigating the focusing properties of our designs, we show that variations in the astigmatism of the beam are dependent on the magnification of the resonator and thermal effects. Given this, we...

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Veröffentlicht in:IEEE photonics technology letters 2003-05, Vol.15 (5), p.637-639
Hauptverfasser: Tanguy, Y., Voignier, V., O'Neill, E., McInerney, J.G., Huyet, G., Corbett, B.
Format: Artikel
Sprache:eng
Schlagworte:
Astigmatism
Beams (radiation)
Computer simulation
Devices
Erbium-doped fiber lasers
Etching
Focusing
Laser excitation
Mathematical models
Numerical simulation
Optical imaging
Optical resonators
Pump lasers
Resonators
Semiconductor lasers
Vision defects
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Beschreibung
Zusammenfassung:Negative branch unstable resonators, with different magnifications, have been fabricated and analyzed. Investigating the focusing properties of our designs, we show that variations in the astigmatism of the beam are dependent on the magnification of the resonator and thermal effects. Given this, we have produced devices with stable astigmatism and good focus points. Numerical simulations were also carried out showing good agreement with experimental results.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2003.809926