Tunable single- and double-frequency diode-pumped Nd:YAG lasers

An Nd:YAG 1-cm-long crystal has been used as the active medium for tunable single- and double-frequency lasers with a metallic absorbing thin-film selector. Cobalt and chromium thin films (210-nm thickness) were used for mode number and frequency control. The laser with a short cavity (25 mm) provid...

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Veröffentlicht in:	IEEE journal of quantum electronics 1997-08, Vol.33 (8), p.1417-1423
Hauptverfasser:	Peshko, I., Jabczynski, J.K., Firak, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chromium Cobalt Diode-pumped lasers Diodes Doped-insulator lasers and other solid state lasers Exact sciences and technology Frequency control Fundamental areas of phenomenology (including applications) Laser modes Laser tuning Lasers Optics Physics Power lasers Pump lasers Transistors Tunable circuits and devices
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Beschreibung
Zusammenfassung:	An Nd:YAG 1-cm-long crystal has been used as the active medium for tunable single- and double-frequency lasers with a metallic absorbing thin-film selector. Cobalt and chromium thin films (210-nm thickness) were used for mode number and frequency control. The laser with a short cavity (25 mm) provided slow smooth tuning up to 6 GHz, the frequency chirp up to 4 GHz with repetition rate about 0.5 kHz and hop tuning over 150 GHz at a maximum pump power of 1.8 W. 520 mW of single-frequency output power was achieved. Double-frequency operation with a space of 1.5-2.5 GHz was realized in a laser with cavity length up to 100 mm.
ISSN:	0018-9197 1558-1713
DOI:	10.1109/3.605565