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Project: COMPRESS - All optical data compression

Acronym: Compress
Main Objective: COMPRESS is focused on a main objective: to develop optical tools that implement layers of ( pre)
optical compression, applicable
to any type of signal (image, data, etc.). The solutions discussed in COMPRESS, inspired by the excellent results of the pioneers
CITO project, already completed with excellent, where the team explored the concepts and demonstrated that the principle of
optical transforms could be applied to the compression and decompression of data and even greater advantages could still arise if
the process was implemented in integrated photonics. Given the transparency and passive nature of the proposed process, this
methodology may allow a large energy saving and processing capacity relief in the current compression and decompression
systems, since this is a key function of traditional related operations, eg Haar transforms, fully in the optical domain.
COMPRESS will depart from an implementation of a key element, the magicT
coupler that allows additions and subtractions in
the optical domain. This element allows you to implement the Haar transform in the optical domain. This component has been
implemented based on couplers, in CITO project and the European project context PARADIGM, where he was awarded a slot for
implementation in a multi process wafer run, due to its degree of conceptual innovation. This design and implementation basis,
allow the establishment of comparison baselines for the technical proposal right from Day 1 of COMPRESS project, if approved for
This chip, together with the team of knowledge in the area, and with existing capabilities in IT av
will be possible to develop
models, concepts and implementations that are sure to overcome the barriers that the first generation features: size and
complexity. In COMPRESS we objectively reduce the size of these components to 1/10 the size just based m change in approach, a
linear coupler for an MMI coupler (multimode interferometer), process does not necessarily simple but not with obvious fundamental
limitations. This will allow the development of more complex transforms and, hence, more useful for real systems, or the increased
level of compression, or the signal input number or points simultaneous processed by one optical chip.
the COMPRESS, when successfully completed will open a lot of doors for new applications and will certainly have a high impact in
the fields of image processing and telecommunications.
Reference: PTDC/EEITEL/ 7163/2014
Funding: FCT/PTDC
Start Date: 01-05-2016
End Date: 01-12-2018
Team: Antonio Luis Jesus Teixeira, Ali Shahpari, Mário José Neves de Lima
Groups: Optical Communications Systems – Av
Partners: Instituto de Telecomunicações
Local Coordinator: Antonio Luis Jesus Teixeira
Associated Publications