Fangyuan Sun, Yufei Zhao, Shili Shu, Guanyu Hou, Huanyu Lu, Xin Zhang, Lijie Wang, Sicong Tian, Cunzhu Tong, Lijun Wang, "High beam quality broad-area diode lasers by spectral beam combining with double filters," Chin. Opt. Lett. 17, 011401 (2019)
- Chinese Optics Letters
- Vol. 17, Issue 1, 011401 (2019)
Fig. 1. (a) Schematic of the SBC with double filters and (b) the filtering schematic by nonparallel double SFs before combining.
Fig. 2. Far-field spots of (a) the conventional SBC and (b) the modified SBC.
Fig. 3. M 2
Fig. 4. L–I–V characteristics of the diode laser array combined with off-axis SBC with selective feedback. The inset graph shows the efficiency characteristics of the off-axis SBC.
Fig. 5. Electrical-to-optical efficiency η EOE
Fig. 6. Lasing spectrum of BAL array by modified SBC with double SFs measured at 50 A.
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