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Compact beam collimator for laser diode bar

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Abstract

A compact beam collimator for a laser diode (LD) bar fabricated by a simple method is presented. It consists of a single set of microlenses and a cylindrical lens, which are fabricated from SiO2 rods using a fiber-drawing tower. The principle and parameter optimization of this device are investigated numerically using ZEMAX software and illustrated experimentally for a specific LD bar. It is shown that the output beam is well collimated in both the fast-axis and slow-axis directions; the beam quality is greatly enhanced via the redistribution of intensity in the two directions and by eliminating the fill factor for the LD bar.

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Authors and Affiliations

  1. Key Lab of All Optical Network & Advanced Telecommunication Network of EMC, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing, 100044, China

    Rui Geng, Yuchun Lu, Fan Zhang, Chu Liu, Chuncan Wang & Shuisheng Jian

Authors
  1. Rui Geng
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  2. Yuchun Lu
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  3. Fan Zhang
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  4. Chu Liu
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  5. Chuncan Wang
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  6. Shuisheng Jian
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Correspondence to Rui Geng.

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Geng, R., Lu, Y., Zhang, F. et al. Compact beam collimator for laser diode bar. OPT REV 17, 103–107 (2010). https://doi.org/10.1007/s10043-010-0019-2

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  • DOI: https://doi.org/10.1007/s10043-010-0019-2

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