Multi-state optical flip-flop memory based on ring lasers coupled through the same gain medium

Zhang, S Shaoxian; Lenstra, D.; Liu, Y Yong; Ju, Heongkyu; Li, Z Zhonggui; Khoe, GD Giok-Djan; Dorren, Hjs Harm

doi:10.1016/j.optcom.2006.08.031

Cited by 27 publications

(13 citation statements)

References 30 publications

(29 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Owing to these researches, nonreciprocal function was added to photonic integrated circuits. Furthermore, magnetically controllable semiconductor bistable laser diodes (Zaets and Ando 2001) and unidirectional lasing of semiconductor ring lasers (Zhang et al 2007) have been theoretically proposed by introducing nonreciprocal function to optoelectronic devices. These are novel applications of semiconductor optical isolators toward all-optical signal processing.…”

Section: Introductionmentioning

confidence: 99%

InGaAsP/InP evanescent mode waveguide optical isolators and their application to InGaAsP/InP/Si hybrid evanescent optical isolators

Shimizu

Goto

2009

Opt Quant Electron

View full text Add to dashboard Cite

We theoretically investigated InGaAsP/InP evanescent mode waveguide optical isolators and proposed their application to InGaAsP/InP/Si hybrid evanescent optical isolators. InGaAsP/InP evanescent optical isolators are composed of semiconductor optical amplifier (SOA) waveguides having InGaAsP multiple quantum well (MQW) active layer and upper InGaAsP waveguide layer with ferromagnetic layer. Optical isolation is obtained for evanescent optical mode in the InGaAsP waveguide layer. InGaAsP/InP/Si hybrid evanescent optical isolators are theoretically proposed based on the idea of InGaAsP/InP evanescent optical isolators. InGaAsP/InP/Si hybrid evanescent optical isolators are composed of ferromagnetic metal loaded silicon evanescent waveguides with wafer-bonded InGaAsP/InP optical gain material. The optical isolation and propagation loss are discussed with the structure of silicon evanescent waveguides, and optical isolation of 8.0 dB/mm was estimated. The concept of semiconductor evanescent mode optical isolators is feasible with InP based photonic integrated circuits and advanced silicon photonics.

show abstract

Section: Introductionmentioning

confidence: 99%

InGaAsP/InP evanescent mode waveguide optical isolators and their application to InGaAsP/InP/Si hybrid evanescent optical isolators

Shimizu

Goto

2009

Opt Quant Electron

View full text Add to dashboard Cite

show abstract

“…In the third regime of Figure 2a, it is possible to switch between asymmetric states where one of the outputs is high and the other two outputs are low. This results in multi-stable flip-flop operation [7,8]. When a short pulse is applied to two of the three ports, the system will evolve to a state where the third output port has the high output power.…”

Section: C Dynamic Behaviourmentioning

confidence: 99%

“…We show that these symmetric setups result in different nonlinear regimes than in the case of systems with two cavities, with various kinds of asymmetric states. Furthermore, using time-domain studies in the case of three and four coupled cavities, we demonstrate multi-state flip-flop operation [7,8]. In these cases a cyclical switching action is obtained.…”

Section: Introductionmentioning

confidence: 99%

Symmetry breaking in networks of nonlinear cavities

2010

View full text Add to dashboard Cite

We demonstrate symmetry breaking in ring-like networks composed of three and four coupled nonlinear cavities, such as photonic crystal resonators. With coupled mode theory we derive analytical conditions for the appearance of asymmetric states. The rich dynamical behaviour is further demonstrated by time-domain calculations, which show cyclical switching action that is useful for multi-stable all-optical flip-flops.

show abstract

“…These are the building blocks of all-optical packet switching and header processing based networks frequently used to temporarily store header information and route the payload to the output port [3][4][5]. Multistate optical flip-flops in this field will be very indispensable as it increases the number of possible output states of an optical packet switch [6]. In this communication, I propose a novel method of developing frequency encoded trinary JK, D-type, and T-type flip-flops exploiting the nonlinear polarization rotational (NPR) character of the probe beam in semiconductor optical amplifiers (SOAs) as well as the frequency conversion and frequency routing property of optical add/drop multiplexers (ADMs).…”

Section: Introductionmentioning

confidence: 99%

Method of developing all-optical trinary JK, D-type, and T-type flip-flops using semiconductor optical amplifiers

Garai¹

2012

Appl. Opt.

View full text Add to dashboard Cite

To meet the demand of very fast and agile optical networks, the optical processors in a network system should have a very fast execution rate, large information handling, and large information storage capacities. Multivalued logic operations and multistate optical flip-flops are the basic building blocks for such fast running optical computing and data processing systems. In the past two decades, many methods of implementing all-optical flip-flops have been proposed. Most of these suffer from speed limitations because of the low switching response of active devices. The frequency encoding technique has been used because of its many advantages. It can preserve its identity throughout data communication irrespective of loss of light energy due to reflection, refraction, attenuation, etc. The action of polarization-rotation-based very fast switching of semiconductor optical amplifiers increases processing speed. At the same time, tristate optical flip-flops increase information handling capacity.

show abstract

Multi-state optical flip-flop memory based on ring lasers coupled through the same gain medium

Cited by 27 publications

References 30 publications

InGaAsP/InP evanescent mode waveguide optical isolators and their application to InGaAsP/InP/Si hybrid evanescent optical isolators

InGaAsP/InP evanescent mode waveguide optical isolators and their application to InGaAsP/InP/Si hybrid evanescent optical isolators

Symmetry breaking in networks of nonlinear cavities

Method of developing all-optical trinary JK, D-type, and T-type flip-flops using semiconductor optical amplifiers

Contact Info

Product

Resources

About