Self-sustained intensity oscillation of a laser diode introduced by a delayed electrical feedback using an optical fiber and an electrical amplifier

Masataka Nakazawa, Masamitsu Tokuda, Naoya Uchida

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

A self-sustained oscillation of laser light intensity emitted by a laser diode was newly observed by a delayed network using an optical fiber and an electrical feedback system. The time delay (transit time) of the light beam through the optical fiber plus the time delay of the electrical signal in the electrical feedback system determines the oscillation frequency of the light intensity. The oscillation for the fiber length of 7 km was obtained by using an electrical amplifier with large gain. With a wide-band amplifier, harmonic (multimode) oscillations took place where the waveform was almost square.

Original languageEnglish
Pages (from-to)379-381
Number of pages3
JournalApplied Physics Letters
Volume39
Issue number5
DOIs
Publication statusPublished - 1981
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Self-sustained intensity oscillation of a laser diode introduced by a delayed electrical feedback using an optical fiber and an electrical amplifier'. Together they form a unique fingerprint.

Cite this