Nd:YAG laser rod manufactured by femtosecond laser-induced chemical etching

Nicholas A. Smith, Mark D. MacKenzie, James M. Morris, Ajoy K. Kar, Henry T. Bookey

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Abstract

We present a cylindrical rod of single-crystal Nd:YAG fabricated from a bulk crystal using femtosecond laser-induced preferential etching. The rod is pumped at 808 nm, and the laser characteristics at 1064 nm emission and the thermal stability are investigated. The slope efficiency was determined with a maximum optical-to-optical efficiency of 7.9%±0.29% and a FWHM linewidth of 299 ± 63 pm. The etched rod shows parameters consistent with existing Nd:YAG gain crystals. This fabrication technology will find use in composite micro-optical devices where microfluidics, active and passive optics, and structures can be etched out of many different materials and combined into a single device.

Original languageEnglish
Pages (from-to)3946-3953
Number of pages8
JournalOptical Materials Express
Volume11
Issue number12
Early online date2 Nov 2021
DOIs
Publication statusPublished - 1 Dec 2021

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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