NOVEL METHOD OF ESTIMATING FLICKER FREQUENCY NOISE IN LASERS

被引：7

作者：

ISHIDA, O

机构：

[1] NTT Transmission Systems Laboratories

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1990年 / 2卷 / 11期

关键词：

D O I：

10.1109/68.63220

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter proposes a simple method for the precise measurement of flicker (1/f) frequency noise in lasers. The method is based on the Allan-variance measurement of beat signals produced by the delayed self heterodyne technique. The simple relation between measured variance and frequency-noise spectrum is derived analytically. Measurement of a 1.5-mu-m semiconductor laser diode is demonstrated. Since the method possesses the great advantage of insensitivity to optical power fluctuations, it can be widely used for precisely testing laser frequency quality.

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页码：784 / 786

页数：3

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