YANG Ye, LIU Yun, ZHANG Jin-long, LI Zai-jin, SHAN Xiao-nan, WANG Li-jun. Near Diffraction Limit High-brightness 850 nm Tapered Laser Diodes[J]. Chinese Journal of Luminescence, 2011,32(10): 1064-1068
YANG Ye, LIU Yun, ZHANG Jin-long, LI Zai-jin, SHAN Xiao-nan, WANG Li-jun. Near Diffraction Limit High-brightness 850 nm Tapered Laser Diodes[J]. Chinese Journal of Luminescence, 2011,32(10): 1064-1068DOI:
Near Diffraction Limit High-brightness 850 nm Tapered Laser Diodes
High-power high-brightness tapered laser diodes emitting at 850 nm have been manufactured
and the beam quality of near diffraction limit has been achieved. The beam propagation factor
M
2
is only 1.7 and the high brightness is up to 16.3 MWcm
-2
sr
-1
when the output power is 200 mW
and the values change to 2.8 and 9.9 MWcm
-2
sr
-1
under 1 W output. The electro-optical properties of tapered lasers are discussed. We have also studied the influence of tapered section length on output power. The results reported in this paper may become a step forward to new applications of tapered laser diodes.
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references
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