EFFECT OF THE VIBRATION-TRANSLATION TRANSFER RATE ON LASER-INDUCED FREQUENCY CHIRP IN A LONG-PULSE CO2-LASER

被引：2

作者：

CHOU, HP

WILLMAN, B

LEUNG, K

THEOPHANIS, G

HASSON, V

机构：

[1] Avco Research Laboratory, TEXTRON, Everett, MA 02149

来源：

APPLIED PHYSICS LETTERS | 1990年 / 56卷 / 21期

关键词：

D O I：

10.1063/1.102980

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A frequency sweeping (chirping) mechanism governed by the lasing gas pressure and composition has been observed in a long-pulse TE CO2 laser for the first time. The mechanism was detected in heterodyned data obtained from photomixing the pulsed laser output with a cw local oscillator. A theory has been developed which links this chirp-governing mechanism to the vibration-translation (V-T) transfer rate from the lower laser level to the ground state. This new theory extends the existing theories on chirp in pulsed CO2 lasers into the long-pulse regime.

引用

页码：2086 / 2088

页数：3

共 5 条

[1] FREQUENCY CHIRP IN A 10-ATM RF-EXCITED CO2 WAVE-GUIDE LASER [J].