Abstract
Integrated photonics provides a path for miniaturization of
an optical system to a compact chip scale and offers reconfigurability
by the integration of active components. Here
we report a chip-scale reconfigurable scan lens based on
an optical phased array, consisting of 30 actively controlled
elements on the InP integrated photonic platform. By configuring
the phase shifters, we show scanning of a nearly
diffraction-limited focused spot with a full width at half
maximum spot size down to 2.7 μm at the wavelength of
1550 nm. We demonstrate the key functions needed for a
laser-scanning microscope, including light focusing, collection,
and steering. We also perform confocal measurements
to detect reflection at selective depths.
an optical system to a compact chip scale and offers reconfigurability
by the integration of active components. Here
we report a chip-scale reconfigurable scan lens based on
an optical phased array, consisting of 30 actively controlled
elements on the InP integrated photonic platform. By configuring
the phase shifters, we show scanning of a nearly
diffraction-limited focused spot with a full width at half
maximum spot size down to 2.7 μm at the wavelength of
1550 nm. We demonstrate the key functions needed for a
laser-scanning microscope, including light focusing, collection,
and steering. We also perform confocal measurements
to detect reflection at selective depths.
| Original language | English |
|---|---|
| Pages (from-to) | 3676-3679 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 47 |
| Issue number | 15 |
| State | Published - Jul 2022 |