Title :
Tunable single- and double-frequency diode-pumped Nd:YAG lasers
Author :
Peshko, Igor ; Jabczynski, J.K. ; Firak, Jóozef
Author_Institution :
Inst. of Phys., Acad. of Sci., Kiev, Ukraine
fDate :
8/1/1997 12:00:00 AM
Abstract :
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
Keywords :
chirp modulation; laser cavity resonators; laser frequency stability; laser modes; laser tuning; neodymium; optical pumping; solid lasers; 1 cm; 1.8 W; 100 mm; 2 to 10 nm; 25 mm; 520 mW; Co; Co thin films; Cr; Cr thin films; Nd:YAG; YAG:Nd; YAl5O12:Nd; cavity length; diode-pumped lasers; frequency chirp; frequency control; hop tuning; maximum pump power; metallic absorbing thin-film selector; mode number control; repetition rate; short cavity laser; single-frequency output power; slow smooth tuning; tunable double-frequency lasers; tunable single-frequency lasers; Chromium; Cobalt; Diodes; Frequency control; Laser modes; Laser tuning; Power lasers; Pump lasers; Transistors; Tunable circuits and devices;
Journal_Title :
Quantum Electronics, IEEE Journal of
