A Compact Frequency-Stabilized Pulse-Periodic Waveguide CO_2 Laser for Calibration of Wavelength Meters

摘要

A compact pulse-periodic waveguide CO_2 laser with high-frequency excitation with automatic assignment of the 10P (14) line and stabilization of the emission frequency in the middle of this line using a sealed-off optoacoustic cell, which is filled with a mixture of C_2H_4 (0.1%) and nitrogen, was developed. It is shown that the laser-frequency instability is within 3 MHz, thus meeting the requirements that are imposed on the calibration tools for high-resolution wavelength meters that are similar to WS-6IR.