Title :
Monolithically integrated laser/rear-facet monitor arrays with V-groove for passive optical fiber alignment
Author :
Rothman, Mark A. ; Shieh, Chan L. ; Negri, Alfred J. ; Thompson, John A. ; Armiento, Craig A. ; Holmstrom, Roger P. ; Kaur, Jatinder
Author_Institution :
GTE Lab., Waltham, MA, USA
Abstract :
An InGaAsP/InP laser monolithically integrated with a rear facet monitor and a fiber V-groove has been demonstrated for the first time. The integrated device incorporates an etched-facet laser fabricated using an in situ, multistep, reactive ion etch process. The integrated V-groove, which is etched directly into the InP substrate, is designed to enable passive alignment of an optical fiber to the active region of the laser. Passive coupling efficiencies of 18% and 8% have been obtained using cleaved multimode and single mode fibers, respectively. Responsivities of the rear facet monitor were as high as 0.49 A/W.<>
Keywords :
III-V semiconductors; gallium arsenide; indium compounds; integrated optics; integrated optoelectronics; optical couplers; optical fibres; semiconductor lasers; 18 percent; 8 percent; InGaAsP-InP; InGaAsP/InP laser; InP substrate; V-groove; active region; cleaved multimode fibres; in situ multistep reactive ion etch process; monolithically integrated laser rear-facet monitor array; passive alignment; passive optical fiber alignment; responsivity; single mode fibers; Costs; Etching; Fiber lasers; Indium phosphide; Monitoring; Optical arrays; Optical fiber devices; Optical fibers; Optical transmitters; Power lasers;
Journal_Title :
Photonics Technology Letters, IEEE
