Title :
A lensed-fiber coupling scheme utilizing a graded-index fiber and a hemispherically ended coreless fiber tip
Author :
Shiraishi, Kazuo ; Ohnuki, Hidenori ; Hiraguri, Nobuaki ; Matsumura, Kazuhito ; Ohishi, Isamu ; Morichi, Hisashi ; Kazami, Hajime
Author_Institution :
Fac. of Eng., Utsunomiya Univ., Japan
fDate :
2/1/1997 12:00:00 AM
Abstract :
A new configuration of lensed fibers as the coupling between laser diodes and single-mode fibers is proposed. The lensed fiber consists of a hemispherically ended coreless-fiber and a quarter-pitch length of a graded-index fiber. Fabrication is quite simple and rapid. Basic characteristics of the new configuration, including long working distances and wide tolerances, are experimentally verified. The new configuration is suitable for integration-oriented coupling between arrayed laser diodes and an array of single-mode fibers
Keywords :
gradient index optics; lenses; optical couplers; optical fibre couplers; optical fibre fabrication; semiconductor laser arrays; graded-index fiber; hemispherically ended coreless fiber tip; integration-oriented coupling; laser diode coupling; lensed-fiber coupling scheme; long working distances; quarter-pitch length; single-mode fiber arrays; single-mode fiber coupling; wide tolerances; Diode lasers; Fiber lasers; Laser beams; Lenses; Optical arrays; Optical beams; Optical coupling; Optical device fabrication; Optical fibers; Semiconductor laser arrays;
Journal_Title :
Lightwave Technology, Journal of
