Title :
FM response of narrow-linewidth, multielectrode lambda /4 shift DFB laser
Author :
Ogita, S. ; Kotaki, Y. ; Matsuda, M. ; Kuwahara, Y. ; Onaka, H. ; Miyata, M. ; Ishikawa, H.
Author_Institution :
Fujitsu Lab. Ltd., Atsugi, Japan
fDate :
3/1/1990 12:00:00 AM
Abstract :
Flat FM response from 100 kHz to 15 GHz was achieved in a multielectrode distributed-feedback (DFB) laser. A lambda /4-shifted corrugation and a 1200- mu m-long cavity were very effective not only in reducing the linewidth to less than 1 MHz, but also in making FM response flat by selective current injection.<>
Keywords :
distributed feedback lasers; electrodes; frequency modulation; laser cavity resonators; optical modulation; semiconductor junction lasers; spectral line breadth; 100 kHz to 15 GHz; 1200 micron; FM response; flat FM response; lambda /4-shifted corrugation; laser spectral linewidth; multielectrode lambda /4 shift DFB laser; narrow-linewidth; selective current injection; semiconductor lasers; Diode lasers; Electrodes; Frequency modulation; Frequency shift keying; Laboratories; Laser tuning; Optical interferometry; Optical transmitters; Pulse modulation; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
