Cryogenic Photonic Probe Station
combined probe station and confocal microscopy
Photonic Integrated Circuits (PIC) are hot candidates for becoming the
key components of the next generation of optical and quantum commu-
nication systems because of the promise of very high information
transfer speed, robustness and the compatibility with standard
microelectronics devices technology. Furthermore, the extremely high
sensitivity of resonant nanophotonics structures to light-matter inter-
actions makes them candidates for a new classes of sensors with broad
range of possible applications in physics, biology and chemistry. The
Photonic Probe Station, which combines two optical fiber probes and
a free optical beam Confocal Microscope (CFMI) provides an ideal,
ultra stable, extremely compact and easy-to-use table top setup for
nano photonic device characterization. The lensed fibers couple light
into and out of the the sample planar wave guides. The confocal mi-
croscope allows not only for sample surface probing, but also for out-
of-plane coupling into photonic structures. The combination with the
attoDRY800 cryo-optical table offers a powerful easy-to-use setup
for characterization of photonic nanostructures in a temperature
range from 4 K up to 320 K.
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01 attoDRY800 cryostat
02 optical access to sample
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03 multi-beam optical head
04 LT high NA objective with z focus
05 lensed fiber for light coupling into
waveguide with xyz degrees of freedom
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06 removable sample holder
07 xy degrees of freedom for complete
setup of sample and fiber probes
08 optical head schematics
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09 detection channel
10 excitation channel
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11 second excitation channel (optional)
12 inspection optics