Frequency measurements of optically pumped far-infrared laser lines

Author

Telles, E.M. ; Scalabrin, A. ; Pereira, D.

Author_Institution

Inst. de Fisica Gleb Wataghin, Univ. Estadual de Campinas, Sao Paulo, Brazil

Volume

31

Issue

4

fYear

1995

fDate

4/1/1995 12:00:00 AM

Firstpage

754

Lastpage

757

Abstract

In this work, we report the frequency measurements of optically pumped far-infrared (FIR) laser lines. We use the heterodyne technique of mixing FIR laser radiation and microwave radiation on a metal-insulator-metal (MIM) point contact tunnel diode, to determine the FIR laser frequencies. The two FIR laser systems, consisting of CO₂ waveguide pump lasers and Fabry-Perot FIR laser cavities, and MIM diode were developed by us. To check the system, we have measured some FIR laser line frequencies previously reported in the literature. An average fractional frequency reproducibility of ±7×10^-7, between our measurements and the previous ones, permit us to use our system to measure five new FIR laser frequencies

Keywords

frequency measurement; gas lasers; infrared sources; laser beams; laser cavity resonators; laser variables measurement; multiwave mixing; optical modulation; optical pumping; organic compounds; CO₂; CO₂ waveguide pump lasers; FIR laser frequencies; FIR laser line frequencies; FIR laser radiation mixing; FIR laser systems; Fabry-Perot FIR laser cavities; MIM diode; average fractional frequency reproducibility; frequency measurements; heterodyne technique; metal-insulator-metal point contact tunnel diode; methanol; microwave radiation; optically pumped far-infrared laser lines; Diodes; Finite impulse response filter; Frequency measurement; Laser excitation; Masers; Optical mixing; Optical pumping; Optical waveguides; Pump lasers; Waveguide lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.371953

Filename

371953