Title :
Laser-to-fiber coupling scheme by utilizing a lensed fiber integrated with a long-period fiber grating
Author :
Chen, W.T. ; Wang, L.A.
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
5/1/2000 12:00:00 AM
Abstract :
An optical coupling scheme between a laser diode and a single-mode fiber utilizing a lensed fiber integrated with a long-period fiber grating is experimentally demonstrated and qualitatively analyzed. A long working distance of 110 μm and a coupling of 35% are obtained for a laser diode with an ellipticity of 2.5. The longitudinal and transverse tolerances at 1-dB excess loss are 26 and 2.5 μm, respectively.
Keywords :
diffraction gratings; integrated optics; lenses; optical fibre couplers; semiconductor lasers; 35 percent; integrated optics; laser diode; laser-to-fiber coupling; lensed fiber; long-period fiber grating; single-mode fiber; Diffraction; Diode lasers; Fiber gratings; Fiber lasers; Laser stability; Lenses; Optical coupling; Optical fibers; Optical losses;
Journal_Title :
Photonics Technology Letters, IEEE
