Title :
Integrated linewidth reduction of a tunable SG-DBR laser
Author :
Sivananthan, A. ; Hyun-Chul Park ; Mingzhi Lu ; Parker, John S. ; Bloch, Eli ; Johansson, Leif A. ; Rodwell, Mark J. ; Coldren, Larry A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of California, Santa Barbara, Santa Barbara, CA, USA
Abstract :
We demonstrate frequency noise suppression of a widely tunable sampled-grating DBR laser using negative feedback from a Mach-Zehnder frequency discriminator integrated on the same InGaAsP/InP chip. The 3-dB laser linewidth is narrowed from 19 MHz to 570 kHz.
Keywords :
III-V semiconductors; diffraction gratings; distributed Bragg reflector lasers; indium compounds; integrated optics; laser beams; laser feedback; laser noise; laser tuning; semiconductor lasers; InGaAsP-InP; InGaAsP/InP chip; Mach-Zehnder frequency discriminator; frequency 19 MHz to 570 kHz; frequency noise suppression; integrated linewidth reduction; laser linewidth; negative feedback; noise figure 3 dB; widely tunable sampled-grating DBR laser; Laser feedback; Laser tuning; Measurement by laser beam; Optical filters;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
