Frequency response of a Fabry-Perot interferometer used as a frequency discriminator (semiconductor laser application)

Author

Tremblay, P. ; Ouellet, R.

Author_Institution

Dept. de Genie Electr., Laval Univ., Que., Canada

fYear

1990

fDate

11-14 June 1990

Firstpage

252

Lastpage

253

Abstract

The theoretically and experimentally obtained Fourier frequency responses of a Fabry-Perot interferometer used as an optical frequency discriminator are given. The frequency response depends greatly on the laser detuning from the fringe peak of the interferometer. Conditions optimizing the discriminator gain were obtained for a Fabry-Perot interferometer operated in reflection as well as in transmission. It is shown that the conversion gain is theoretically larger in reflection. For both modes, the bandwidth of the conversion increases as the laser is detuned from a fringe peak, and a resonance appears. The high-frequency slope is -20 dB/decade in reflection and -40 dB/decade in transmission.<>

Keywords

discriminators; laser accessories; laser variables measurement; light interferometers; semiconductor junction lasers; Fabry-Perot interferometer; bandwidth; conversion gain; frequency discriminator; frequency intensity conversion; frequency noise measurement; frequency response; fringe peak; high-frequency slope; laser detuning; reflection; semiconductor laser; transmission; Fabry-Perot interferometers; Frequency measurement; Frequency response; Laser modes; Laser noise; Laser theory; Optical feedback; Optical interferometry; Optical reflection; Semiconductor lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements, 1990. CPEM '90 Digest., Conference on

Conference_Location

Ottawa, Ontario, Canada

Type

conf

DOI

10.1109/CPEM.1990.110011

Filename

110011