A method for generation of optical FM signal through injection locking

Author

Bhattacharya, Madhumita ; Chatlopadhyay, T.

Author_Institution

Dept. of Phys., Visva-Bharati Univ., Santiniketan, India

Volume

16

Issue

4

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

656

Lastpage

660

Abstract

This paper proposes a scheme for the generation of optical frequency modulation (FM) signals through direct modulation and injection locking of semiconductor lasers. The method is simple and effective. The amplitude modulation of the AM-FM optical carrier generated through direct modulation can be drastically reduced by an injection-locked semiconductor laser. For this purpose, the AM limiting property of the injection-locked semiconductor laser has been investigated theoretically in detail. The FM index and the second harmonic distortion of the resulting FM signal at the output of the AM limiter has also been calculated

Keywords

amplitude modulation; electro-optical modulation; frequency modulation; laser mode locking; optical transmitters; semiconductor lasers; AM limiter; AM limiting property; AM-FM optical carrier generation; FM index; amplitude modulation; direct modulation; injection locking; injection-locked semiconductor laser; optical FM signal generation; optical frequency modulation signal generation; optical transmitters; second harmonic distortion; semiconductor laser mode locking; Amplitude modulation; Frequency modulation; Harmonic distortion; Injection-locked oscillators; Laser noise; Laser theory; Optical distortion; Optical modulation; Semiconductor lasers; Signal generators;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.664079

Filename

664079