Photonics Characterization
In the photonics characterization team, we characterize the optical properties of integrated photonic circuits and components relevant for quantum technologies.
Our automatic prober system MPI TS2000-D is the workhorse for testing of photonic integrated circuits. It can measure samples sized as dies (eg, 5x5mm) up to 8-inch wafers. The tool’s high precision chuck can move the sample in XYZ with minimum step size of ~500nm. We developed python-based controlled scripts for automated testing of samples, allowing for long duration testing. Manual alignment of the optical input-output is only required for the very first device on chip.
The optical sources and optical detection systems include:
- Tunable continuous-wave (cw) O and CL-band lasers (Santec TSL570, Type C), covering 1240 to 1380nm, and 1500 to 1630nm
- 8-channel InGaAs optical power meter (Santec MPM-220) covering the 1240 to 1680nm range
- NIR spectrometer (OceanOptics NIRQUEST+1.7-25) covering the 900 – 1650 nm range
- Supercontinuum white light laser (NKT SuperK COMPACT) covering the 450 – 2400 range
The laser light input-output is done via v-groove fiber arrays with 127um core-to-core pitch. We work with configurations suited for:
- grating couplers: 10deg fiber angle, 4x780HP + 4xSMF-28.
- edge couplers: 0deg facets, i) 20xSMF-28 terminated in UHNA-4 fibers and ii) 10x780HP + 10xSMF-28.
Contact us for more details on the setup and ready-available measurement and analysis protocols.
Webpage for booking: https://cleanroom.brickhost.com/
Wiki Link: Characterization team - Overview
Rodrigo Thomas, Research Consultant