Lensed single-mode fiber arrays
Efficiently coupling light from photonic integrated chips (PICs) e.g. based on SiN, Si or InP technology requires a single-mode fiber (SMF) with a mode-field diameter (MFD) matched to the PIC. Our lensed fiber arrays can be either purchased on a 127 µm pitch SMF-array or a 250 µm SMF-array. We can supply lensed fiber arrays with MFD from 1.5 µm to 25 µm for a wavelength of 1310 nm or 1550 nm.
What are lensed fiber arrays?
Efficiently coupling light from photonic integrated chips (PICs) e.g. based on SiN, Si or InP technology requires a single-mode fiber (SMF) with a mode-field diameter (MFD) matched to the PIC. However typical SMFs have MFDs of around 10 µm while most PICs require MFDs in the range of few micrometers or below. To achieve mode matching, lensed-fibers or tapered fibers are used. These are SMF with either a lens or a taper melted or etched to the SMF. By this method neither length nor pitch of several SMF can be precisely matched to form an array of lensed SMFs.
To overcome this challenge we use V-Groove arrays, that have a well defined facet and pitch. We fabricate lenses onto this facet with 3D-microprinting based on two-photon polymerization. We are able to fabricate aspheric freeform lenses with highest reproducibility, also available as lensed SMF-arrays.
What performance can lensed fiber arrays deliver?
What specification can I order?
Can I order custom optics on SMF-arrays?
What power can the lenses withstand?
Further information P.-I. Dietrich et al. “Lenses for Low-Loss Chip-to-Fiber and Fiber-to-Fiber Coupling Fabricated by 3D Direct-Write Lithography,” in CLEO’16, OSA, 2016, SM1G.4. S. Schneider et al. “Optical coherence tomography system mass-producible on a silicon photonic chip,” Opt. Express 24, 1573–1586 (2016).
How can I order the lensed SMF-arrays?
Please mail at firstname.lastname@example.org and specify the product number, see table below. Please ask for customized optics.