Coupling of a laser diode to single mode circular core trapezoidal index fiber via hyperbolic microlens on the fiber tip and construction of empirical relations to determine the optimum back focal length

Mallick, Aswini Kumar; Mukhopadhyay, Sumanta; Sarkar, Sourav

doi:10.1016/j.ijleo.2016.08.075

Cited by 3 publications

(2 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…28,29 Another specific example includes the use of a fiber-tip lens to increase the light coupling from a laser diode to an optical fiber. 30,31 Recently, highly efficient achromatic metalenses on photonic crystal fibers have been achieved by other researchers. 32,33 While these metalenses perform well, they require a relatively more complex fabrication process.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Fiber-tip lenses have been widely used in applications such as optical endoscopes, optical transmitters, and optical receivers. , Another specific example includes the use of a fiber-tip lens to increase the light coupling from a laser diode to an optical fiber. , Recently, highly efficient achromatic metalenses on photonic crystal fibers have been achieved by other researchers. , While these metalenses perform well, they require a relatively more complex fabrication process. A fiber-tip metalens based on Fresnel lenses fabricated by a more straightforward 3D printing technique has also been explored to achieve optical trapping for a nanoparticle …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Inverse Design and 3D Printing of a Metalens on an Optical Fiber Tip for Direct Laser Lithography

et al. 2021

View full text Add to dashboard Cite

An inverse-designed metalens is proposed, designed, and fabricated on an optical fiber tip via a 3D direct laser-writing technique through two-photon polymerization. A computational inverse-design method based on an objective-first algorithm was used to design a thin circular grating-like structure to transform the parallel wavefront into a spherical wavefront at the near-infrared range. With a focal length about 8 μm at an operating wavelength of 980 nm and an optimized focal spot at the scale of 100 nm, our proposed metalens platform is suitable for two-photon direct laser lithography. We demonstrate the use of the fabricated metalens in a direct laser lithography system. The proposed platform, which combines the 3D printing technique and the computational inverse-design method, shows great promise for the fabrication and integration of multiscale and multiple photonic devices with complex functionalities.

show abstract