NOISE CHARACTERISTICS OF A NDYVO4 LASER-PUMPED BY LASER-DIODE MODULATED AT HIGH-FREQUENCY

被引：4
|
作者：
NAGAI, H
KUME, M
YOSHIKAWA, A
ITOH, K
机构：
[1] Electronics Research Laboratory, Matsushita Electronics Corporation, Takatsuki Osaka
来源：
APPLIED OPTICS | 1994年 / 33卷 / 24期
关键词：
SOLID-STATE LASERS; LASER DIODES; NOISE; HIGH-FREQUENCY MODULATION;
D O I：
10.1364/AO.33.005542
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report, for the first time to our knowledge, on the noise characteristics of a Nd:YVO4 laser pumped by a laser diode modulated at high frequency. We have investigated noise characteristics of a Nd:YVO4 laser pumped by a laser diode that is oscillating in a stable multilongitudinal mode because of modulation by a high-frequency (several hundred megahertz) current. As a result, low-noise operations of -130 dB/Hz above frequencies of 1 MHz have been achieved. This noise level is comparable to the level obtained when pumping a Nd:YVO4 laser with a laser diode that is oscillating in a single longitudinal mode. However, a noise peak corresponding to relaxation oscillations of the Nd:YVO4 laser has appeared around a frequency of several hundred kilohertz.
引用
收藏
页码：5542 / 5545
页数：4
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