Chaotic signal generation and coding using a nonlinear micro ring resonator

Mitatha, S.; Dejhan, Kobchai; Yupapin, P.P.; Pornsuwancharoen, N.

doi:10.1016/j.ijleo.2008.05.028

Cited by 11 publications

(5 citation statements)

References 16 publications

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“…The lateral small ring resonators in the PANDA Vernier system are responsible for the nonlinearity in an optical feedback process, instead of using long-path fiber or thousands of iterations of the input pulse in the ring resonator [10,[23][24][25][26][27]; hence lateral small rings compensate the long path traveling of the optical pulse to get nonlinearity; consequently the optical bistability can occur in a shorter time.…”

Section: Resultsmentioning

confidence: 99%

“…There are two practical approaches to introduce the nonlinear effects: increase the length of the fiber or increase the optical power within the fiber [12]. One of the approaches to achieve nonlinearity in ring resonators with fixed radius is the iterative method, in which the input optical pulse is rotated iteratively though a ring resonator to compensate the required length for emergence of nonlinear phenomena [10,[23][24][25][26][27]. To attain bistability in the ring resonator, the idea of using the Vernier effect by inserting two small ring resonators to a common add/drop filter is proposed.…”

Section: Introductionmentioning

confidence: 99%

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Ultrafast all-optical switching using signal flow graph for PANDA resonator

Bahadoran¹,

Ali²,

Yupapin³

2013

Appl. Opt.

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In this paper, the bifurcation behavior of light in the PANDA ring resonator is investigated using the signal flow graph (SFG) method, where the optical transfer function for the through and drop ports of the PANDA Vernier system are derived. The optical nonlinear phenomena, such as bistability, Ikeda instability, and dynamics of light in the silicon-on-insulator (SOI) PANDA ring resonator with four couplers are studied. The transmission curves for bistability and instability as a function of the resonant mode numbers and coupling coefficients for the coupler are derived by the SFG method and simulated. The proposed system has an advantage as no optical pumping component is required. Simulated results show that closed-loop bistable switching can be generated and achieved by varying mode resonant numbers in the SOI-PANDA Vernier resonator, where a smooth and closed-loop bistable switching with low relative output/input power can be obtained and realized. The minimum through-port switching time of 1.1 ps for resonant mode numbers of 5;4;4 and minimum drop port switching time of 1.96 ps for resonant mode numbers of 9;7;7 of the PANDA Vernier resonator are achieved, which makes the PANDA Vernier resonator an operative component for optical applications, such as optical signal processing and a fast switching key in photonics integrated circuits.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultrafast all-optical switching using signal flow graph for PANDA resonator

Bahadoran¹,

Ali²,

Yupapin³

2013

Appl. Opt.

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“…1, which can be used to secure the information via either analog or digital methods. They also have shown that increase in transmission capacity can be realized by using the techniques called chaotic encoding and packet switching [2], while the required information can be secured with high-capacity information [3,4]. Recently, Chaiyasoonthorn et al [5] have reported interesting results where the ultrafast pulse with pulse width of as can be easily generated using a soliton pulse travelling within the nonlinear microring resonators (NMRRs).…”

Section: Introductionmentioning

confidence: 99%

Generalized fast and slow lights using multi-state microring resonators for optical wireless links

Pornsuwancharoen

Sangwara

Yupapin

2010

Optik

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“…doi:10.1016/j.ijleo.2008.11.013 on chaotic signal generation within the nonlinear microring resonator have been reported. For instance, the use of chaotic signals in various applications such as signal security [2,3], high-capacity data encoding [4], fast and slow light and ultra-fast switching [5] has been reported. Some works are under way in our research group using the chaotic behaviors in nonlinear micro-ring resonators, and the goal is to search for novel devices and technologies [6].…”

Section: Introductionmentioning

confidence: 99%