Affiliation:
1. National Yang Ming Chiao Tung University
2. National Central University
3. National Taiwan University
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.
Funder
Ministry of Science and Technology, Taiwan
Subject
Atomic and Molecular Physics, and Optics
Cited by
1 articles.
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