Phase Transparent Demultiplexer for QPSK Signal Based on Nonlinear Response in a Double-Pass Architecture.

Wen, Yu-Hsiang; Ho, Jia-Wei; Feng, Kai-Ming

doi:10.1109/jphot.2016.2583781

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…3, suppose the source QPSK signal at z = 0 is described as S (0, t) = S (t) = A s exp [j (2πf c t + φ QP SKs )], where A s is the amplitude, f c is the center frequency, φ QP SKs is the QPSK phase and φ QP SKs ∈ {π/4, 3π/4, −3π/4, −π/4}. A degenerate FWM (DFWM) process [32] is stimulated by amplifying S (0, t) through an Erbium-Doped Fiber Amplifier (EDFA) over an HNLF fed with an input pump…”

Section: B Format Conversionmentioning

confidence: 99%

All-Optical QPSK Pattern Recognition in High-Speed Optoelectronic Firewalls

Zhang

Gong

2023

IEEE Photonics J.

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Section: B Format Conversionmentioning

confidence: 99%

All-Optical QPSK Pattern Recognition in High-Speed Optoelectronic Firewalls

Zhang

Gong

2023

IEEE Photonics J.

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“…According to (6), the second harmonic is generated from the 8QAM by a cascaded FWM process and the term k 3 (w 3 − w 4 ) in (7) describes its conversion efficiency. Similarly, ϕ represents the additional phase difference between two levels of second harmonic caused by XPM effect from the input 8QAM.…”

Section: Optical Channel De-aggregatormentioning

confidence: 99%

“…Meanwhile, optical de-aggregation has also been studied. A QPSK signal can deaggregate to two BPSK signals using four-wave mixing (FWM) [7] or phase sensitive amplification (PSA) [8]- [11]. A 16QAM signal can de-aggregate to two 4-pulse amplitude modulation (PAM) signals [12], [13] or two QPSK signals [14].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous All-Optical Channel Aggregation and De-Aggregation for 8QAM Signal in Elastic Optical Networking

Liu

Wang

2019

IEEE Photonics J.

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A simultaneous all-optical channel aggregation and de-aggregation scheme is proposed for two 8QAM modulation formats by employing four-wave mixing (FWM) in highly nonlinear fiber. The scheme consisting of two FWM processes is simple without photoelectric conversion, which is promising to improve efficient use of the fiber resources in elastic optical networking. The feasibility of the scheme has been confirmed by the inputoutput constellations and waveforms. System performance is also studied as a function of the optical signal-to-noise ratio of the two 8QAM signals. Finally, some potential application scenarios have also been discussed based on the same setup.

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Experimental demonstration of all-optical aggregation and de-aggregation for a QPSK signal in an elastic optical network

Ding

Wang

2022

Opt. Express

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The aggregation and de-aggregation between one QPSK and two BPSK signals are experimentally demonstrated based on cross-phase modulation (XPM) effects and phase-sensitive amplification (PSA), aiming to improve flexible spectral efficiency in the elastic optical network. Benefiting from the nonlinear-optical loop mirror (NOLM), the two BPSK signals can be extracted without any information redundancy for the de-aggregation scheme. The wavelength of the extracted signals stay the same as the input signal in the NOLM. Moreover, the aggregation from two BPSK signals to one QPSK signal is also successfully achieved. The feasibility of the two schemes can be confirmed by the transfer functions and the input-output constellation. The bit-error-rate (BER) and error vector magnitude(EVM) performance of the two schemes are also investigated and the corresponding OSNRs for error-free signal recovery are obtained respectively. The proposed schemes contribute to the realization of flexible optical networks and can be applied in the future gateway node between optical sub-networks.

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Phase Transparent Demultiplexer for QPSK Signal Based on Nonlinear Response in a Double-Pass Architecture.

Cited by 3 publications

References 12 publications

All-Optical QPSK Pattern Recognition in High-Speed Optoelectronic Firewalls

All-Optical QPSK Pattern Recognition in High-Speed Optoelectronic Firewalls

Simultaneous All-Optical Channel Aggregation and De-Aggregation for 8QAM Signal in Elastic Optical Networking

Experimental demonstration of all-optical aggregation and de-aggregation for a QPSK signal in an elastic optical network

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