Deterministic Timing Jitter Analysis of SOA-Amplified Intensity-Modulated Optical Pulses

Alexoudi, Theoni; Kanellos, George T.; Dris, Stefanos; Kalavrouziotis, D.; Bakopoulos, P.; Miliou, Amalia; Pleros, Nikos

doi:10.1109/jphot.2012.2220341

Cited by 5 publications

(11 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, according to Figure 1, the steepness of the slope of the T MEAN curve indicated two distinct areas for the T MEAN based on the peak power: area A, corresponding to the nonsaturated SOA gain regime, where the SOA still responds radically to input peak power resulting in enhanced timing jitter values for the amplified pulses, and area B, where the SOA operates in its strongly saturated gain region. In the last case, the curve of T MEAN decreases smoothly, mitigating in this way the differences of mean arrival time T MEAN compared to SOA operation in area A and leading to lower timing jitter values [15].…”

Section: Deterministic Timing Jitter Analysismentioning

confidence: 96%

“…As the center of the pulse is assumed to be at t = 0, the time shift induced by SOA amplification process will always be leftward. As a consequence, T MEAN will always be a negative quantity that will continuously decrease until reaching a saturation plateau [15].…”

Section: Deterministic Timing Jitter Analysismentioning

confidence: 99%

“…The monotonic slope of mean arrival time T MEAN implies that the lowest and highest values are obtained for the corresponding lowest and highest peak power input pulses [15]. In case the P p values are within a finite set between minimum and maximum values, the peak-to-peak deterministic timing jitter is determined as the difference between the respective minimum and maximum mean arrival time values T MEAN [15], as shown in Eq. 8:…”

Section: Deterministic Timing Jitter Analysismentioning

confidence: 99%

“…Pulse-shaped asymmetry owing to SOA saturation effects, for example, has been one of the key findings and has been extensively studied for the past years [13]. However, it was only recently that a novel theoretical analysis correlated this behavior to SOA-induced deterministic timing jitter that optical pulses experience during the amplification process, also suggesting an analytic mathematical formula for its accurate estimation [14,15]. On the other hand, amplitude modulation phenomena for SOA in-line amplification have been theoretically studied [16,17] but the pulse peak power equalization properties of SOAs, although experimentally utilized in many cases [18][19][20], have never been expressed in an analytical form that would allow a straightforward estimation for any case of input signal.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Semiconductor Optical Amplifier (SOA)–Based Amplification of Intensity-Modulated Optical Pulses — Deterministic Timing Jitter and Pulse Peak Power Equalization Analysis

Alexoudi¹,

Kanellos²,

Dris³

et al. 2015

Some Advanced Functionalities of Optical Amplifiers

Self Cite

View full text Add to dashboard Cite

During the last few years, large-scale efforts towards realizing high-photonic integration densities have put SO"s in the spotlight once again. Hence, the need to develop a complete framework for SO"-induced signal distortion to accurately evaluate a system's performance has now become evident. To cope with this demand, we present a detailed theoretical and experimental investigation of the deterministic timing jitter and the pulse peak power equalization of SO"-amplified intensity-modulated optical pulses. The deterministic timing jitter model relies on the pulse mean arrival time estimation and its analytic formula reveals an approximate linear relationship between the deterministic timing jitter and the logarithmic values of intensity modulation when the SO" gain recovery time is faster than the pulse period. The theoretical analysis also arrives at an analytic expression for the intensity modulation reduction IMR , which clearly elucidates the pulse peak power equalization mechanism of SO". The IMR analysis shows that the output intensity modulation depth is linearly related to the respective input modulation depth of the optical pulses when the gain recovery time is faster than the pulse period. This novel theoretical platform provides a qualitative and quantitative insight into the SO" performance in case of intensity-modulated optical pulses.

show abstract

Section: Deterministic Timing Jitter Analysismentioning

confidence: 96%

Section: Deterministic Timing Jitter Analysismentioning

confidence: 99%

Section: Deterministic Timing Jitter Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Semiconductor Optical Amplifier (SOA)–Based Amplification of Intensity-Modulated Optical Pulses — Deterministic Timing Jitter and Pulse Peak Power Equalization Analysis

Alexoudi¹,

Kanellos²,

Dris³

et al. 2015

Some Advanced Functionalities of Optical Amplifiers

Self Cite

View full text Add to dashboard Cite

show abstract

“…Thus far, optical RAM cell architectures have deployed simple SOA cross-gain modulation (XGM) or SOA-MZI cross-phase modulation (XPM) switches, operating as unoptimized WCs with one control signal only [60]. As a result, their switching operation is limited by the lifetime of the carriers in the active region of the SOA, with the gain recovery from the saturated to the small signal gain being in the order of >80 ps [28,61], inducing gain amplitude fluctuations that impose jitter and transient phenomena [62,63]. In the proposed RAM cell architecture, two assist lights have been introduced in the architecture to act as holding beams to the SOA-MZI AG that deeply saturate the gain close to the transparency region and differentially biasing it, so as to circumvent the slow response of the carrier lifetime of the small signal gain and support thresholding and clipping functionalities for high-speed burst traffic [61,64].…”

Section: Optical Ram Architecturesmentioning

confidence: 99%

Optical memory architectures for fast routing address look-up (AL) table operation

et al. 2019

View full text Add to dashboard Cite

Today, the increasing demand for fast routing processes has turned the address look-up (AL) operation into one of the main critical performance operations in modern optical networks, since it conventionally relies on slow-performing AL tables. Specifically, AL memory tables are comprised of content addressable memories (CAMs) for storing a known route of the forwarding information base of the router, and random access memories (RAMs) for storing the respective output port for this route. They thus allow for a one-cycle search operation of a packet's destination address, yet they typically operate at speeds well below 1 GHz, in contrast with the vastly increasing optical line rates. In this paper, we present our overall vision towards light-based optical AL memory functionalities that may facilitate faster router AL operations, as the means to replace slow-performing electronic counterparts. In order to achieve this, we report on the development of a novel optical RAM cell architecture that performs for the first time with a speed of up to 10 Gb s −1 , as well as our latest works on multi-bit 10 Gb s −1 optical CAM cell architectures. Specifically, the proposed optical RAM cell exploits a semiconductor optical amplifier-Mach-Zehnder interferometer in a push-pull configuration and deep saturation regime, doubling the speed of prior optical RAM cell configurations. Errorfree write/read operation is demonstrated with a peak power penalty of 6.2 dB and 0.4 dB, respectively. Next, we present the recent progress on optical CAM cell architectures, starting with an experimental demonstration of a 2-bit optical CAM match-line architecture that achieves an exact bitwise search operation of an incoming 2-bit destination address at 10 Gb s −1 , while the analysis is also extended to a numerical evaluation of a multi-cell 4-bit CAM-based row architecture with wavelength division multiplexed outputs for fast parallel memory operations at speeds of up to 4×20 Gb s −1 . Finally, we present a comparative study between electronic and optical RAMs and CAMs in terms of energy and speed and discuss the further challenges towards our vision. entries, even causing the depletion of the remaining IPv4 address space and leading to the advent of an IPv6 protocol with a quadrupled need for address look-up (AL) requirements [5]. This increasing need for faster routing functionalities, including AL, which also requires fast hardware memories to perform fast look-up of the packet's destination address immediately upon its arrival and across the forwarding information base (FIB) of the router.On the path to speeding up hardware memory and lower latency times when fetching data, state-of-the-art highly performing electronic static random access memory (RAM) cell technology has managed to achieve operation up to 5 GHz [6][7][8]. However, RAMs are inherently limited in fast AL as, owing to the address-based fetching of data, they would require multiple sequential random access to the memory and consecutive searches of the desired content. As a re...

show abstract

Investigation of amplification characteristic for DPSK signal in SOA

Sheng

et al. 2017

2017 16th International Conference on Optical Communications and Networks (ICOCN)

View full text Add to dashboard Cite

Deterministic Timing Jitter Analysis of SOA-Amplified Intensity-Modulated Optical Pulses

Cited by 5 publications

References 19 publications

Semiconductor Optical Amplifier (SOA)–Based Amplification of Intensity-Modulated Optical Pulses — Deterministic Timing Jitter and Pulse Peak Power Equalization Analysis

Semiconductor Optical Amplifier (SOA)–Based Amplification of Intensity-Modulated Optical Pulses — Deterministic Timing Jitter and Pulse Peak Power Equalization Analysis

Optical memory architectures for fast routing address look-up (AL) table operation

Investigation of amplification characteristic for DPSK signal in SOA

Contact Info

Product

Resources

About