Title

Scaling Diode-Pumped Nd3+ And Yb3+-Doped Yca4O(Bo3)3 (Ycob) Self-Frequency Doubling Lasers

Abstract

The development of diode-pumped self-frequency doubling (SFD) YCa4O(BO3)3 (YCOB) crystals doped with Nd3+ or Yb3+ ions offers an attractive alternative to traditional intra-cavity doubling techniques using a separate non-linear crystal. Here, we summarize the progress of scaling SFD lasers to higher powers. Moreover, we examine the potential and limitations of these devices. While SFD lasers are potentially more compact and less costly, scaling to higher powers in the visible region requires careful assessment of mode matching and cavity mode brightness. Combining optical gain and frequency conversion in the same material requires a compromise between the ideal cavity mode for mode matching and generating the largest available power density of the laser mode for optimum frequency doubling. The lack of adjustment of the cavity mode inherently limits scaling of SFD laser operation when using low brightness high power laser diodes. We have employed a new source developed by polaroid corp. Using multiple high-brightness laser diodes to investigate the potential of increasing SFD laser output. We have then compared the efficiency of this novel pump technique to a single diode pumped system to determine the importance of brightness of the pump source to SFD operation.

Publication Date

1-1-2000

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

3945

Number of Pages

50-62

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.380555

Socpus ID

0033878530 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0033878530

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