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High sensitivity active flat optics optical phased array receiver with a two-dimensional aperture

Fatemi, Reza and Abiri, Behrooz and Khachaturian, Aroutin and Hajimiri, Ali (2018) High sensitivity active flat optics optical phased array receiver with a two-dimensional aperture. Optics Express, 26 (23). pp. 29983-29999. ISSN 1094-4087. http://resolver.caltech.edu/CaltechAUTHORS:20181205-145145663

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Abstract

Optical phased arrays (OPAs) on integrated photonic platforms provide a low-cost chip-scale solution for many applications. Despite the numerous demonstrations of OPA transmitters, the realization of a functional OPA receiver presents a challenge due to the low received signal level in the presence of noise and interference that necessitates high sensitivity of the receiver. In this paper, an integrated receiver system is presented that is capable of on-chip adaptive manipulation and processing of the captured waveform. The receiver includes an optoelectronic mixer that down-converts optical signals to radio frequencies while maintaining their phase and amplitude information. The optoelectronic mixer also provides conversion gain that enhances the system sensitivity and its robustness to noise and interference. Using this system, the first OPA receiver with a two-dimensional aperture of 8-by-8 receiving elements is demonstrated which can selectively receive light from 64 different angles. The OPA receiver can form reception beams with a beamwidth of 0.75° over an 8° grating-lobe-free field of view.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1364/oe.26.029983DOIArticle
ORCID:
AuthorORCID
Fatemi, Reza0000-0001-9081-2608
Hajimiri, Ali0000-0001-6736-8019
Additional Information:© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Received 16 Jul 2018; revised 25 Sep 2018; accepted 6 Oct 2018; published 31 Oct 2018.
Record Number:CaltechAUTHORS:20181205-145145663
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20181205-145145663
Official Citation:Reza Fatemi, Behrooz Abiri, Aroutin Khachaturian, and Ali Hajimiri, "High sensitivity active flat optics optical phased array receiver with a two-dimensional aperture," Opt. Express 26, 29983-29999 (2018)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91516
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:05 Dec 2018 23:40
Last Modified:05 Dec 2018 23:40

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