Integrated photonics by 3D microprinting

The design freedom of Two-Photon Polymerization enables to additively print optical interfaces, waveguides and hybrid refractive-diffractive optics on various prepatterned substrates. Benefit from the high-precision positioning systems in Nanoscribe’s technology to precisely integrate complex microstructures where needed.

Microfabrication of complex optical structures on pre-existing patterns

The miniaturization of optical and optoelectronic components is decisive for enabling data communication and telecommunication as well as sensing and imaging applications. The realization of freeform lenses, mirrors and other novel designs by conventional micro-scale 3D printing lacks sufficient resolution and optical surface quality. Two-Photon Polymerization allows to print optically transparent microstructures with smooth surfaces along a lean process. The technology is not only used to fabricate microparts on plane substrates but also to directly print complex structures precisely on pre-existing patterns and topographies, e.g. on photonic integrated circuits, on optical fiber tips and on premanufactured wafers. This method enables miniaturization and assembly-free fabrication of optical interfaces with high-precision in-situ 3D microprinting on various materials, such as InP, SOI and Si3N4.

For example, it is used to print freeform microoptical components directly onto chips, enabling the connection of multiple fibers to a chip. The light in this case must be collected, redirected parallel to the chip plane and then transferred to a narrow waveguide. For this purpose, the inherent design freedom of Two-Photon Polymerization enables to combine elements such as a spherical lens to collect light from the fiber facet with a taper to transfer it into the waveguide. Using the high-resolution process camera and a programing interface of the printer, an automatic alignment of the coupling structures to the waveguides with alignment accuracy in the order of 100 nm can be achieved.

With Nanoscribe Photonic Professional GT2, our customers in science and industry print microoptical structures directly onto photonic components, thus enabling edge and surface coupling with great success. For its new Two-Photon Grayscale Lithography system Quantum X, Nanoscribe develops advanced processes for photonic packaging, see research projects MiLiQuantHandheldOCT and PHOENICS.

Integrated photonics
application opportunities

You want to assess the opportunities for your project in integrated photonics? Explore the application options of our 3D Microfabrication solutions. Have a look at the 10 most recent scientific publications in integrated photonics.
To view the details of the publications and to find more research topics and applications in which Nanoscribe printing systems are successfully used, just enter our premium resources - log in or register for free.

2022/07/04

Two-photon direct laser writing of micro Fabry-Perot cavity on single-mode fiber for refractive index sensing

2022/05/20

Design, laser direct writing prototyping, and characterization of fan-out diffractive optical elements for optical interconnect applications

2022/05/20

3D Polymer Based 1x4 Beam Splitter

2022/05/12

3D-printed fiber-based zeroth- and high-order Bessel beam generator

2022/05/09

High-order Photonic Cavity Modes Enabled 3D Structural Colors

2022/04/12

Two-Photon Nanomachining of a Micromechanically Enhanced Optical Cavity Sensor on an Optical Fiber Tip

2022/04/09

Ex-vivo evaluation of miniaturized probes for endoscopic optical coherence tomography in urothelial cancer diagnostics

2022/03/14

Geometric control of next-nearest-neighbor coupling in evanescently coupled dielectric waveguides

2022/01/18

Single photon emission from individual nanophotonic integrated colloidal quantum dots

2022/01/11

Photonic waveguide bundles using 3D laser writing and deep neural network image reconstruction

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You get more publication examples and deeper insights within our premium resources. Via a keyword-underpinned database you find more than 1,000 scientific publications of our customers in specific application areas. Make use of the tool to gather valuable know-how and background information about the manifold application options.

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