Title :
Determination of the instantaneous linewidth of a monolithic Nd:YAG laser from RIN measurements
Author :
Ullrich, Andreas G.
Author_Institution :
Inst. fur Nachrichtentech. und Hochfrequenztech., Tech. Univ., Wien, Austria
fDate :
4/1/1991 12:00:00 AM
Abstract :
The author demonstrates the evaluation of the subhertz instantaneous linewidth of a nonplanar monolithic Nd:YAG ring laser emitting at 1064 nm with 3.9 mW output power from a precise heterodyne relative intensity noise (RIN) measurement. The relaxation resonant frequency, the maximum RIN density at the relaxation resonance, and the relaxation peak width are: 220 kHz, -83 dB/Hz, and 4.5 kHz, respectively, which yield an instantaneous linewidth of 80 mHz. The result is in good agreement with those obtained by other methods.<>
Keywords :
laser variables measurement; neodymium; noise measurement; ring lasers; solid lasers; spectral line breadth; 1064 nm; 3.9 mW; RIN measurements; YAG:Nd; YAl5O12:Nd; instantaneous linewidth; monolithic Nd:YAG laser; output power; precise heterodyne relative intensity noise; relaxation peak width; relaxation resonant frequency; ring laser; subhertz instantaneous linewidth; Frequency; Laser noise; Noise measurement; Noise shaping; Optical noise; Power lasers; Power measurement; Ring lasers; Semiconductor device noise; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
