Title :
Slotted Single Mode Lasers Integrated With a Semiconductor Optical Amplifier
Author :
Qiaoyin Lu ; Abdullaev, A. ; Nawrocka, M. ; Wei-Hua Guo ; O´Callaghan, James ; Donegan, J.F.
Author_Institution :
Semicond. Photonics Group, Trinity Coll. Dublin, Dublin, Ireland
Abstract :
Performance of single mode lasers based on slots integrated with a semiconductor optical amplifier (SOA) is presented. To improve the laser performance, the anti-reflection and high-reflection coating films are applied to the front and back facets of the integrated device. The fabricated device demonstrates a threshold current of ~19 mA with the SOA left floating. Stable single mode performance is observed with a side mode suppression ratio > 50 dB at twice the threshold current. The output power of higher than 45 mW is achieved for the integrated device.
Keywords :
antireflection coatings; integrated optics; laser modes; optical fabrication; semiconductor optical amplifiers; SOA; antireflection coating films; high-reflection coating films; integrated device; optical fabrication; semiconductor optical amplifier; side mode suppression ratio; slotted single mode lasers; threshold current; Current measurement; Gratings; Laser modes; Measurement by laser beam; Semiconductor optical amplifiers; Waveguide lasers; Semiconductor optical amplifier (SOA); side mode suppression ratio (SMSR); single mode laser; surface grating;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2245645
