Programmable photonic signal processor chip for radiofrequency applications
By L. Zhuang, Chris G. H. Roeloffzen, M. Hoekman, K. Boller, Arthur James Lowery. 2015
348 citations recorded by the source corpus.
Integrated microwave photonics, an emerging technology combining radio frequency (RF) engineering and integrated photonics, has great potential to be adopted for wideband analog processing applications. However, it has been a challenge to provide photonic integrated circuits with equal levels of function flexibility as compared with their electronic counterparts. Here, we introduce a disruptive approach to tackle this need, which is analogous to an electronic field-programmable gate array. We use a grid of tunable Mach–Zehnder couplers interconnected in a two-dimensional mesh network, each working as a photonic processing unit. Such a device is able to be programmed into many different circuit topologies and thereby provide a diversity of functions. This paper provides, to the best of our knowledge, the first ever demonstration of this concept and shows that a programmable chip with a free spectral range of 14 GHz enables RF filters featuring continuous, over-two-octave frequency coverage, i.e., 1.6–6 GHz, and variable passband shaping ranging from a 55 dB extinction notch filter to a 1.6 GHz bandwidth flat-top filter.
Subfields: Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/c3dd15dd57ebe3a82bf66bab66ea4bdb38f81dce
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In Electrical and Electronic Engineering
Citations in the corpus
- Silicon Nitride in Silicon Photonics (2018, background): “Reprinted with permission from [94], c ©OSA 2015.”
- Low-Loss Si3N4 TriPleX Optical Waveguides: Technology and Applications Overview (2018, neutral): “[41] and experimentally demonstrated.”
- Microwave Photonic Radars (2020, background): “In addition, some multifunctional building blocks such as reflective-type microring resonator [404] and programmable 2D mesh network [405] have been demonstrated,”
- A monolithic integrated photonic microwave filter (2016, neutral): “) integration, as shown in Table 1. A dierent approach is based on generic processors [29,30], where a common architecture implements dierent functionalities by suitable programming. A recent paper [31] reported the design of a programmable optical core inspired by the concept of electronic eld prog”
- Photonics for microwave measurements (2016, background): “Very recently, for general-purpose applications, software-defined processor architecture [172] and programmable processor chips [173, 174] are reported for signal processing and measurements.”