Off-axis spectral beam combining of Bragg reflection waveguide photonic crystal diode lasers

Off-axis spectral beam combining of Bragg reflection waveguide photonic crystal diode lasers

The spectral beam combining (SBC) of Bragg reflection waveguide photonic crystal (BRW-PC) diode lasers was studied for the first time. An off-axis feedback system was constructed using a stripe mirror and a spatial filter to control beam quality in the external cavity. It was found that the BRW-PC d...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Japanese Journal of Applied Physics 2018-06, Vol.57 (6), p.60312
Hauptverfasser: Sun, Fangyuan, Wang, Lijie, Zhao, Yufei, Hou, Guanyu, Shu, Shili, Zhang, Jun, Peng, Hangyu, Tian, Sicong, Tong, Cunzhu, Wang, Lijun
Format: Artikel
Sprache:eng
Schlagworte:
Curved beams
Diodes
Divergence
Emitters
Feedback
Laser beams
Lasers
Photonic crystals
Semiconductor lasers
Spatial filtering
Wave reflection
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The spectral beam combining (SBC) of Bragg reflection waveguide photonic crystal (BRW-PC) diode lasers was studied for the first time. An off-axis feedback system was constructed using a stripe mirror and a spatial filter to control beam quality in the external cavity. It was found that the BRW-PC diode lasers with a low divergence and a circular beam provided a simplified and cost-effective SBC. The off-axis feedback broke the beam quality limit of a single element, and an M2 factor of 3.8 times lower than that of a single emitter in the slow axis was demonstrated.
ISSN:0021-4922
1347-4065
DOI:10.7567/JJAP.57.060312