Drive current noise induced linewidth in tunable multielectrode lasers
- 1 April 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 3 (4) , 302-304
- https://doi.org/10.1109/68.82093
Abstract
It is shown that drive current noise could lead to an important increase of linewidth and a Gaussian line shape of tunable multielectrode distributed Bragg reflector (DBR) lasers. As an example, the drive current noise induced linewidth (DCNIL) has been measured to be about 120 MHz using a standard DC source through at 50 Omega resistor to drive the Bragg section of a tested DBR laser. For tunable lasers with an electronic tuning efficiency of more than 1 GHz/mA ultralow noise current sources should be used to ensure a negligible DCNIL.Keywords
This publication has 9 references indexed in Scilit:
- Semiconductor lasers for coherent optical fiber communicationsJournal of Lightwave Technology, 1990
- Analysis of the phase-amplitude coupling factor and spectral linewidth of distributed feedback and composite-cavity semiconductor lasersIEEE Journal of Quantum Electronics, 1990
- Spectral characteristics of a three-section wavelength-tunable DBR laserIEEE Journal of Quantum Electronics, 1989
- Effect of 1/f-type FM noise on semiconductor-laser linewidth residual in high-power limitIEEE Journal of Quantum Electronics, 1989
- Linewidth of laser diodes with nonuniform phase-amplitude alpha -factorIEEE Journal of Quantum Electronics, 1989
- Simple measurement of laser diode spectral linewidth using modulation sidebandsElectronics Letters, 1988
- Semiconductor laser linewidth broadening due to 1/ f carrier noiseElectronics Letters, 1983
- Theory of the linewidth of semiconductor lasersIEEE Journal of Quantum Electronics, 1982
- Novel method for high resolution measurement of laser output spectrumElectronics Letters, 1980