Continuously tunable laser diodes: longitudinal versus transverse tuning scheme

Author

Amann, Markus-Christian ; Thulke, Wolfgang

Author_Institution

Siemens AG Res. Lab., Munich, West Germany

Volume

8

Issue

6

fYear

1990

fDate

8/1/1990 12:00:00 AM

Firstpage

1169

Lastpage

1177

Abstract

The operating principles and performances of the two most powerful approaches to monolithic tunable laser diodes-the longitudinally integrated three-section (3S) distributed Bragg reflector (DBR) laser and the transversely integrated tunable twin-guide (TTG) distributed feedback (DFB) laser-are described and compared. Both laser configurations are capable of being continuously tuned over several nanometers. The practically useful tuning range strongly depends on structure geometry parameters and is limited by either the required amplification or the tuning densities. It is shown that, with comparable parameters, the useful continuous tuning range of the TTG-DFB laser is 30% larger than that of the 3S-DBR laser. Wide-range continuous tuning of the TTG-DFB laser requires only a single control current, which is particularly advantageous for the manufacture and design of the wavelength control circuitry

Keywords

distributed Bragg reflector lasers; distributed feedback lasers; laser tuning; amplification; continuously tunable laser; control current; design; distributed Bragg reflector laser; distributed feedback laser; longitudinal tuning; longitudinally integrated three-section; manufacture; monolithic tunable laser diodes; transverse tuning; transversely integrated tunable twin-guide; tuning densities; wavelength control circuitry; Circuit optimization; Diode lasers; Distributed Bragg reflectors; Distributed feedback devices; Geometrical optics; Laser feedback; Laser tuning; Optical control; Power lasers; Tunable circuits and devices;

fLanguage

English

Journal_Title

Selected Areas in Communications, IEEE Journal on

Publisher

ieee

ISSN

0733-8716

Type

jour

DOI

10.1109/49.57823

Filename

57823