Promising results of various coupling experiments between laser diodes and single-mode
fibers to determine the optimum coupling method are reported. The cylindrical lens method …

A design method for a miniature optical lens tipped on a single-mode fiber end to improve
power coupling from a semiconductor laser is described. The lens shapes studied are …

This paper studied the effect of lens aberration on coupling efficiency and loss penalty due
to misalignment for a laser diode to single-mode fiber couplers. The theoretical results were …

An efficient coupling from semiconductor lasers in the 1.3-μm range into single-mode fibers
with tapered hemispherical ends (TH fiber) is described. Coupling efficiency of more than …

A new scheme is proposed for lensed fibers with a long working distance, as used in the
coupling between laser diodes and single-mode fibers. The scheme consists of the …

A new coupling method of a laser diode to a single-mode fiber is described. It consists of a
spherical ruby lens and a graded index (GRIN) rod lens positioned under a confocal …

The characteristics of lens systems for coupling InGaAsP laser diodes to single-mode (SM)
fibers are studied. Two groups of lens systems are investigated. One group employs a …

Simple conical microlenses are fabricated on the end of a vapor-axial-deposition single-
mode fiber to increase the coupling efficiency between the laser diode and the single-mode …

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 …

A theoretical and experimental study of an efficient technique for coupling a broad-area
laser to a single-mode fiber without the use of bulk optical components was carried out. The …