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

Volume

3

Issue

4

fYear

1991

fDate

4/1/1991 12:00:00 AM

Firstpage

318

Lastpage

319

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.82098

Filename

82098