Enhancement of emitting power density with a beam-shaping technique for a high-power laser-diode array stack

Hiroyuki Ohashi; Xin Gao; Hiroshi Okamoto; Masaomi Takasaka; Masayuki Saito; Kazunori Shinoda

doi:10.1117/1.1789151

1 October 2004 Enhancement of emitting power density with a beam-shaping technique for a high-power laser-diode array stack

Hiroyuki Ohashi, Xin Gao, Hiroshi Okamoto, Masaomi Takasaka, Masayuki Saito, Kazunori Shinoda

Author Affiliations +

Optical Engineering, Vol. 43, Issue 10, (October 2004). https://doi.org/10.1117/1.1789151

Abstract

We present a beam-shaping technique to enhance emitting power density for a high-power laser-diode array stack. By use of a stripe mirror and a high-reflection mirror, the laser source height of 42 mm is folded to 21 mm and the emitting power density is increased to 365 W/cm² from a raw emitting power density of 194 W/cm². Moreover, the beam parameter product (BPP) that is used to evaluate the beam quality is effectively improved to 168-mm mrad from a raw BPP of 336-mm mrad in the fast axis for the collimated high-power laser-diode array stack.

©(2004) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Hiroyuki Ohashi, Xin Gao, Hiroshi Okamoto, Masaomi Takasaka, Masayuki Saito, and Kazunori Shinoda "Enhancement of emitting power density with a beam-shaping technique for a high-power laser-diode array stack," Optical Engineering 43(10), (1 October 2004). https://doi.org/10.1117/1.1789151

Published: 1 October 2004

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