298 citations · 418 across the 11 of their papers we have counts for
12 papers
Long-term performance of the MLR-TT sensor: two-photon polymerization validation in the telescope environment
Robert J. Harris, Philipp Hottinger, Jonathan Crass +2
We report on the long-term optical performance of a two-photon polmerized microlens ring tip-tilt sensor. The study is backed by repeated measurements over the last six years, sinc…
Sub-kHz-linewidth external-cavity laser (ECL) with SiN resonator used as a tunable pump for a Kerr frequency comb
Pascal Maier, Yung Chen, Yilin Xu +11
Combining optical gain in direct-bandgap III-V materials with tunable optical feedback offered by advanced photonic integrated circuits is key to chip-scale external-cavity lasers…
3D-printed facet-attached optical elements for connecting VCSEL and photodiodes to fiber arrays and multi-core fibers
Pascal Maier, Yilin Xu, Mareike Trappen +11
Multicore optical fibers and ribbons based on fiber arrays allow for massively parallel transmission of signals via spatially separated channels, thereby offering attractive bandwi…
3D-printed facet-attached optical elements for beam shaping in optical phased arrays
Stefan Singer, Yilin Xu, Sebastian Tobias Skacel +10
We demonstrate an optical phased-array (OPA) equipped with a 3D-printed facet-attached element for shaping and deflection of the emitted beam. The beam shaper combines freeform ref…
On-sky results for the novel integrated micro-lens ring tip-tilt sensor
Philipp Hottinger, Robert J. Harris, Jonathan Crass +16
We present the first on-sky results of the micro-lens ring tip-tilt (MLR-TT) sensor. This sensor utilizes a 3D printed micro-lens ring feeding six multi-mode fibers to sense misali…
Superconducting Nanowire Single-Photon Detector (SNSPD) with 3D-Printed Free-Form Microlenses
Yilin Xu, Artem Kuzmin, Emanuel Knehr +6
We present an approach to increase the effective light-receiving area of superconducting nanowire single-photon detectors (SNSPD) by means of free-form microlenses that are printed…
Hardwire-Configurable Photonic Integrated Circuits Enabled by 3D Nano-Printing
Tobias Hoose, Matthias Blaicher, Juned Nassir Kemal +7
Photonic integrated circuits (PIC) currently rely on application-specific designs that are geared towards a particular functionality. Development of such application-specific PIC r…
Focal Plane Tip-Tilt Sensing for Improved Single-Mode Fiber Coupling using a 3D-printed Microlens-Ring
Philipp Hottinger, Robert J. Harris, Philipp-Immanuel Dietrich +11
Modern extreme adaptive optics (AO) systems achieving diffraction-limited performance open up new possibilities for instrumentation. Especially important for the fields of spectros…
3D-Printed Optics for Wafer-Scale Probing
Mareike Trappen, Matthias Blaicher, Philipp-Immanuel Dietrich +5
Mass production of photonic integrated circuits requires high-throughput wafer-level testing. We demonstrate that optical probes equipped with 3D-printed elements allow for efficie…
Micro-lens array as tip-tilt sensor for single-mode fiber coupling
Philipp Hottinger, Robert J. Harris, Philipp-Immanuel Dietrich +8
We introduce a design for a tip-tilt sensor with integrated single-mode fiber coupling for use with the front-end prototype of the iLocater spectrograph at the Large Binocular Tele…
Hybrid integration of silicon photonics circuits and InP lasers by photonic wire bonding
Muhammad Rodlin Billah, Matthias Blaicher, Tobias Hoose +10
Efficient coupling of III-V light sources to silicon photonic circuits is one of the key challenges of integrated optics. Important requirements are low coupling losses, as well as…
In-Situ 3D Nano-Printing of Freeform Coupling Elements for Hybrid Photonic Integration
P. -I. Dietrich, M. Blaicher, I. Reuter +9
Hybrid photonic integration exploits complementary strengths of different material platforms, thereby offering superior performance and design flexibility in comparison to monolith…