Title :
Reduction of spectral-linewidth in high power SOA integrated wavelength selectable laser
Author :
Kimoto, Tatsuya ; Kurobe, Tatsuro ; Muranushi, Kengo ; Mukaihara, Toshikazu ; Kasukawa, Akihiko
Author_Institution :
Yokohama R&D Labs., Furukawa Electr. Co. Ltd., Yokohama, Japan
Abstract :
The effect of optical feedback from various reflected points on the spectral-linewidth was analyzed for a wavelength selectable laser consisting of a 12 distributed feedback (DFB) laser array, multimode interference coupler, and semiconductor optical amplifiers (SOA). For all 12 DFB lasers, a narrow linewidth of less than 2 MHz was achieved with over 50 mW by reducing facet reflectivity.
Keywords :
distributed feedback lasers; laser feedback; optical couplers; reflectivity; semiconductor laser arrays; semiconductor optical amplifiers; spectral line breadth; wavelength division multiplexing; distributed feedback laser array; facet reflectivity; high power SOA; integrated laser; multimode interference coupler; narrow linewidth; optical feedback; semiconductor optical amplifiers; spectral-linewidth reduction; wavelength selectable laser; wavelength-division multiplexing; Distributed feedback devices; Interference; Laser feedback; Optical arrays; Optical coupling; Optical feedback; Power lasers; Reflectivity; Semiconductor laser arrays; Semiconductor optical amplifiers; Distributed feedback lasers (DFB); linewidth; semiconductor lasers; semiconductor optical amplifier (SOA); wavelength-division multiplexing;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2005.853781
