Anamorphic microlens for laser diode to single-mode fiber coupling

Modavis, R. A.; Webb, Thomas William

doi:10.1109/68.393210

Cited by 83 publications

(20 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Ball lenses and plano-convex micro-lenses have been developed and applied in coupling light into single-mode optical fiber to enhance the coupling efficiency [8,21,37,43]. Different shapes of lens can be employed to achieve better coupling efficiency [28,31,41]. The focused beam characteristics has to match the fiber parameters for excellent coupling efficiency (Figure 4).…”

Section: Coupling Light Into An Optical Fibermentioning

confidence: 99%

Choosing a Better Delay Line Medium between Single-Mode and Multi-Mode Optical Fibers: the Effect of Bending

Imam

Isiyaku

Isah

et al. 2017

PoS

View full text Add to dashboard Cite

Abstract. Optical fiber cables are materials whose core is made of silica and other materials such as chalcogenide glasses; they transmit a digital signal via light pulses through an extremely thin strand of glass. The light propagates and is being guided by the core which is surrounded by the cladding. Light travels in the optical fiber in the form of total internal reflection in the core of the fibers. The flexibility, low tensile strength, low signal loss, high bandwidth and other characteristics of optical fibers favors it for use as a delay medium in many applications. Another favorable characteristic of optical fiber delay lines is are their relative insensitivities to environmental effects and electromagnetic interferences. The immunity of optical fibers to interferences and their less weight added advantages to it for use as delay medium. Single-mode and multi-mode are the two most popular types of optical fibers. Single-mode fibers have good propagation and delay properties with a minimal loss that allows the signal to propagate in a large distance with insignificant distortion or attenuation. The percentage of power transmission of single-mode fibers is found to be higher than that of the multi-mode fibers. It is, therefore, a preferred type for use as a delay line. In this paper, relative studies of the two optical fibers modes, and the results of power input/output measurement of the two modes are presented with a view to coming up with a better type for use as a delay medium.

show abstract

Section: Coupling Light Into An Optical Fibermentioning

confidence: 99%

Choosing a Better Delay Line Medium between Single-Mode and Multi-Mode Optical Fibers: the Effect of Bending

Imam

Isiyaku

Isah

et al. 2017

PoS

View full text Add to dashboard Cite

show abstract

“…The large emission width prevents thermal problems and makes the 980 nm laser diodes output elliptical mode fields with aspect ratios from 3 to 5 at the LD end face [1]. Various techniques for coupling elliptical fields with single-mode fibers (SMFs) have been applied, including the combination of cylindrical lenses [2,3], an uptapered wedge-shaped fiber endface [4], an anamorphic lens [5], and a wedge-shaped graded-index fiber [6,7]. Fig.…”

Section: Introductionmentioning

confidence: 99%

Optical fiber polishing automation with on-line force sensing

Tseng¹,

Hung²,

Liu³

et al. 2007

International Journal of Machine Tools and Manufacture

View full text Add to dashboard Cite

“…To improve the mode match between the 980-nm lasers and single-mode fibers (SMFs) in laser module packaging, a common approach is to fabricate the tip of SMF as an asymmetric microlens with wavefront match for them to couple directly. Several structures of asymmetric microlenses for coupling to 980-nm laser diodes had been demonstrated, such as a up-tapered wedge-shaped fiber [1], an asymmetric hyperbolic fiber microlens [2], [3], an anamorphic lens [4], a wedge-shaped fiber [5]- [7], a quadrangular-pyramid-shaped microlens (QPSM) [8], and a conical-wedge-shaped microlens (CWSM) [9].…”

Section: Introductionmentioning

confidence: 99%

New Scheme of Hyperboloid Microlens for High-Average and High-Yield Coupling High-Power Lasers to Single-Mode Fibers

Huang

Hsieh

Hsu

et al. 2013

J. Lightwave Technol.

View full text Add to dashboard Cite

A new scheme of hyperboloid microlens (HM) employing automatic grinding and precise fusing techniques to achieve high-average and high-yield coupling efficiency from high-power 980-nm lasers into single mode fibers is proposed and demonstrated. The fiber endface of the HM exhibited a double-variable curvature in the major and minor axes that was characterized as a hyperboloid. By selecting half transverse length of the hyperbola and using fusing process to precise and quantitative controlling the required minor radius of curvature within 2.4-2.8 m and offset within 0.8 m, the HMs exhibited a high-average coupling efficiency of 83%. For fabricated high-coupling HMs, the result was also found that the tolerance of minor radius of curvature decreased as the offset increased. This study demonstrates that the proposed HMs through both automatic grinding and precise fusing techniques can achieve high-average and high-yield coupling efficiency better than any other grinding techniques to form asymmetric microlenses for utilizing in many low-cost lightwave interconnection applications.

show abstract

Anamorphic microlens for laser diode to single-mode fiber coupling

Cited by 83 publications

References 8 publications

Choosing a Better Delay Line Medium between Single-Mode and Multi-Mode Optical Fibers: the Effect of Bending

Choosing a Better Delay Line Medium between Single-Mode and Multi-Mode Optical Fibers: the Effect of Bending

Optical fiber polishing automation with on-line force sensing

New Scheme of Hyperboloid Microlens for High-Average and High-Yield Coupling High-Power Lasers to Single-Mode Fibers

Contact Info

Product

Resources

About