Design considerations of all-optical A/D conversion: nonlinear fiber-optic Sagnac-loop interferometer-based optical quantizing and coding

Ikeda, Katsuhiko; Abdul, J.M.; Tobioka, H.; Inoue, Takashi; Namiki, Shu; Kitayama, Ken‐ichi

doi:10.1109/jlt.2006.875244

Cited by 48 publications

(18 citation statements)

References 17 publications

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“…Optical quantising and coding allows higher processing speed as well as in principle low-cost implementations, avoiding parallel electronic ADC. In (Ikeda et al, 2006;Miyoshi et al, 2007) the periodical characteristic of the nonlinear optical loop mirror is employed for a 3-bit ADC at 10 Gsamples/s. Slicing of the spectrum broadened by SPM is exploited in ( Nishitani et al, 2008;Oda & Maruta, 2005).…”

Section: Analog-to-digital Convertermentioning

confidence: 99%

All-optical Digital Processing Through Semiconductor Optical Amplifiers

Berrettini¹,

Bogoni²,

Lazzeri³

et al. 2010

Semiconductor Technologies

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Section: Analog-to-digital Convertermentioning

confidence: 99%

All-optical Digital Processing Through Semiconductor Optical Amplifiers

Berrettini¹,

Bogoni²,

Lazzeri³

et al. 2010

Semiconductor Technologies

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“…Photonic thresholding devices were implemented by using Symmetric Self-Electro-Optic Effect Devices (S-SEED) [2], optical nonlinearties [3] [4] and SOAs [5] [6]. However, many of the above processes do not exhibit sharp transitions or operate slowly compared to electronic signals of interest.…”

Section: Introductionmentioning

confidence: 99%

Photonic comparator by square-wave synthesis

Ehrlichman

Amrani

Ruschin

2010

2010 IEEE 26-Th Convention of Electrical and Electronics Engineers in Israel

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A device with square-like E/O response is proposed. It employs a set of superimposed sine-wave responses differing in amplitude and phase. The device is based on Fourier series implementation; it consists of Multimode Interference (MMI) couplers and phase shifters. A 5-arm full photonic comparator design based on Si-SiO2 technology is presented. The comparator's output has sharp response and good distinction between digital low and high levels.

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“…Most of the techniques exploit the Kerr-effect. In [44][45] the periodical characteristic of the nonlinear optical loop mirror is employed for a 3-bit A/D conversion at 10 Gsamples/s. Slicing of the spectrum broadened by self-phase modulation (SPM) is exploited in [46][47][48].…”

Section: Introductionmentioning

confidence: 99%

Photonic digital processing for enabling next generation optical networks

Scaffardi

Ghelfi

Porzi

et al. 2009

2009 International Conference on Photonics in Switching

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Elementary blocks, performing basic operations, are the building elements for complex subsystems implementing all-optical digital processing. They can enable next generation optical networks and optical computing overcoming electronic issues as bandwidth and power consumption. IntroductionThe increasing demand of fast and efficient computing systems is pushing the research towards the investigation of photonic digital processing. The main advantage of photonic processing with respect to electronic processing is the high speed [1], [2]. Nevertheless photonics is in its early stage and the realisation of complete all-optical computing system is still far, mainly due to the lack of efficient all-optical memories. Despite the present limitations, photonic digital processing shows promise in the applications where fast computation speed is required. One of these scenarios is represented by the all-optical short-range photonic interconnection networks. The improvement of the present high performance computing systems is hampered by the bottleneck of the chip-to-chip and chip-to-memory communication.The limits are the high wiring density, the high power consumption and the limited throughput [3]. Photonic interconnection networks can overcome the limitations of the electronic interconnection networks by guaranteeing high bit rate communications, data format transparency and electromagnetic field immunity. Moreover they can reduce the wiring density and the power consumption. In such networks photonic digital processing can be the most suitable paradigm for simple and ultra-fast control and switching operations, since it reduces the packet latency to the optical time-of-flight. In order to apply photonic digital processing for the controlling of the network data plane, complex functions must be available. Elementary logic gates as AND, NOR, NAND, NOT has been demonstrated with fibre, waveguide and semiconductor-based solutions. A fibre-based scheme exploits Cross Phase Modulation (XPM) in nonlinear optical loop mirrors structures [4]. A combination of pump depletion and Sum Frequency and Difference Frequency Generation (SFG-DFG) has bee exploited in a single Periodically Poled Lithium Niobate (PPLN) waveguide in [5] to obtain multiple basic logic operations. Semiconductor-based solutions exploit Semiconductor Optical Amplifiers (SOAs) followed by optical filtering [6], integrated SOAs in Mach Zehnder

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Design considerations of all-optical A/D conversion: nonlinear fiber-optic Sagnac-loop interferometer-based optical quantizing and coding

Cited by 48 publications

References 17 publications

All-optical Digital Processing Through Semiconductor Optical Amplifiers

All-optical Digital Processing Through Semiconductor Optical Amplifiers

Photonic comparator by square-wave synthesis

Photonic digital processing for enabling next generation optical networks

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