Quasicontinuous wavelength tuning in super-structure-grating (SSG) DBR lasers

The paper describes the design of a super-structure-grating distributed Bragg reflector (SSG-DBR) laser for broad quasicontinuous wavelength tuning with stable single-mode operation. The phase distributions and the effective coupling coefficients of SSG's are optimized to obtain both broad tuni...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 1996-03, Vol.32 (3), p.433-441
Main Authors: Ishii, H., Tanobe, H., Kano, F., Tohmori, Y., Kondo, Y., Yoshikuni, Y.
Format: Article
Language:English
Subjects:
Computational modeling
Distributed Bragg reflectors
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Gratings
Laser modes
Laser stability
Laser tuning
Lasers
Optical design
Optical tuning
Optics
Physics
Semiconductor lasers
laser diodes
Waveguide lasers
Wavelength division multiplexing
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Summary:The paper describes the design of a super-structure-grating distributed Bragg reflector (SSG-DBR) laser for broad quasicontinuous wavelength tuning with stable single-mode operation. The phase distributions and the effective coupling coefficients of SSG's are optimized to obtain both broad tuning range and high mode selectivity. A computer-aided simulation of wavelength tuning, where the effects of the waveguide loss increase and inhomogeneous gain spectrum are included, provides an optimum cavity structure and indicates the possibility of more than 70 mm quasicontinuous tuning in a 1.55 /spl mu/m InGaAsP-InP SSG-DBR laser. Experimental results for 34 nm quasicontinuous tuning with a properly designed device are also presented.
ISSN:0018-9197
1558-1713
DOI:10.1109/3.485394