Polymer Microlens on Pillar Grown from Single-Mode Fiber Core for Silicon Photonics

Polymer Microlens on Pillar Grown from Single-Mode Fiber Core for Silicon Photonics

A novel coupling device composed of a combination of microlens and pillar having an approximately 8lm diameter and 20lm height and grown from single-mode fiber (SMF) core end is proposed. This device was successfully fabricated by using a self-written waveguide and dipping method with UV-curable res...

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Veröffentlicht in:IEEE photonics technology letters 2020-04, Vol.32 (7), p.1-1
Hauptverfasser: Mikami, Osamu, Sato, Ryo, Suzuki, Shuhei, Fujikawa, Chiemi
Format: Artikel
Sprache:eng
Schlagworte:
Converters
Coupling
Coupling Efficiency
Couplings
Lensed Fiber
Lenses
Microlens
Microoptics
Numerical aperture
Optical coupling
Optical fibers
Optical Interconnection
Optical interconnections
Photonics
Resins
Self-Written Waveguide
Silicon
Silicon Photonics
Spot-Size Converter
Ultraviolet radiation
UV-Curable Resin
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Beschreibung
Zusammenfassung:A novel coupling device composed of a combination of microlens and pillar having an approximately 8lm diameter and 20lm height and grown from single-mode fiber (SMF) core end is proposed. This device was successfully fabricated by using a self-written waveguide and dipping method with UV-curable resin. Theoretical and experimental studies were done. A high coupling efficiency of more than -0.97dB was obtained for coupling to an ultrahigh numerical aperture (0.41) SMF with a spot diameter of 3.7μm at a 1.55μm wavelength in place of a silicon chip with an integrated spot-size converter. In contrast, it is only -4.0dB by a conventional SMF.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2020.2977394