Enhanced self-heterodyne performance using a Nd-doped ceramic YAG laser

A. McKay*, P. Dekker, D. W. Coutts, J. M. Dawes

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


Two-frequency operation in ceramic neodymium-doped yttrium aluminium garnet is demonstrated for 1.064 μm operation with a self-heterodyne beat-frequency tuning range in excess of 1.5 GHz. A 6 dB improvement of the peak-beat strength is seen in the ceramic material over that of similar crystalline Nd:YAG lasers. Experimentally, the ceramic host material is shown to have substantially higher polarization mode coupling constant, C = 0.72 ± 0.05, compared to crystalline Nd:YAG, C = 0.16 ± 0.05. The peak-beat strength is related to mode coupling. In general the Nd:ceramic YAG dual-frequency laser offers superior performance as a photonic-based radio-frequency source over Nd:YAG.

Original languageEnglish
Pages (from-to)425-430
Number of pages6
JournalOptics Communications
Issue number2
Publication statusPublished - 15 Apr 2007


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