All-Optical Format Conversion From NRZ to BPSK Using a Single Saturated SOA

Yan, Cishuo; Su, Yikai; Yi, Lilin; Leng, Lufeng; Tian, Xuemin; Xu, Xinyu; Tian, Yue

doi:10.1109/lpt.2006.885633

Cited by 44 publications

(26 citation statements)

References 14 publications

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“…However, to chew up AOSP system, a return-to-zero (RZ) pulse sequence as a probe light needs to be launched into AOSP circuits in synchronization with processed signal light. For example, modulation format converter [1]- [5], optical logic gate [6]- [8], and signal regenerator [9] are some of them. These circuits are fundamentally based on all-optical wavelength converter.…”

Section: Introductionmentioning

confidence: 99%

Synchronization Detection Using XGM in SOA for All-Optical Preprocessing

Hisano

Maruta

Kitayama

2014

IEEE Photon. Technol. Lett.

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We report experimental demonstration of synchronization detection using semiconductor optical amplifier (SOA). We show the feasibility with which the timing of the signal can be actually monitored and with little impact on signal light. When return-to-zero ON-OFF-keyed signal light and a probe light are launched into SOA, error-free operation at 10.7 Gb/s is demonstrated with small power penalty as compared with the case which the probe light is not launched, then the amplified signal can be directly used for the following all-optical processing circuit.

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Section: Introductionmentioning

confidence: 99%

Synchronization Detection Using XGM in SOA for All-Optical Preprocessing

Hisano

Maruta

Kitayama

2014

IEEE Photon. Technol. Lett.

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“…So far, many conversion techniques have been reported, such as NRZ (nonreturn to zero) to RZ [10], NRZ to CS (carrier suppressed)-RZ [11], NRZ to binary-PSK (BPSK) [12]. Meanwhile, on-off keying (OOK) signals could be converted to multi-level signals using all-optical signal conversion techniques.…”

Section: Introductionmentioning

confidence: 99%

An All-Optical Modulation Format Conversion for 8QAM Based on FWM in HNLF

Zhang

Chen

et al. 2013

IEEE Photon. Technol. Lett.

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In this letter, we propose and experimentally demonstrate an all-optical modulation format conversion scheme from amplitude shift keying (ASK) and quadrature phase shift keying (QPSK) to 8-ary quadrature amplitude modulation (8QAM), using four-wave mixing (FWM) effect in highly nonlinear fiber. In the FWM process, a 20-Gbits/s return-to-zero QPSK (RZ-QPSK) signal and a 10-Gbit/s ASK signal are utilized as probe light and pump light, respectively. A 30-Gbits/s RZ-8QAM signal, which is the idler light, is successfully obtained with optical signal-to-noise ratio larger than 30 dB and bit-error rate lower than 10 −5 .Index Terms-8-ary quadrature amplitude modulation (8QAM), cross phase modulation (XPM), four-wave mixing (FWM), highly nonlinear fiber (HNLF).

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“…Meanwhile, the cost-effective non-return-to-zero on-off keying (NRZ-OOK) modulation format is still widely employed in metro networks. Considering the capacity, robustness, complexity, and service quality together, different modulation formats are supposed to be applied to different network circumstances for composing an optimized solution [4][5][6][7][8][9]. When the data streams from the metro network arrive at an intermediate node between metro and backbone networks, data from independent OOK wavelength-division-multiplexing (WDM) channels may need to be multiplexed into a single RZ-QPSK channel before further transmission across the network.…”

Section: Introductionmentioning

confidence: 99%

“…When the data streams from the metro network arrive at an intermediate node between metro and backbone networks, data from independent OOK wavelength-division-multiplexing (WDM) channels may need to be multiplexed into a single RZ-QPSK channel before further transmission across the network. Different all-optical format conversion techniques have been developed to overcome the electronic bottleneck in the processing speed [4][5][6][7][8][9]. Based on the cross phase modulation (XPM) effect, various NRZ-OOK to RZ-BPSK format conversion technologies have been reported [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Different all-optical format conversion techniques have been developed to overcome the electronic bottleneck in the processing speed [4][5][6][7][8][9]. Based on the cross phase modulation (XPM) effect, various NRZ-OOK to RZ-BPSK format conversion technologies have been reported [4][5][6][7]. However, up to date, only limited all-optical NRZ-OOK to RZ-QPSK format converters have been demonstrated [8,9].…”

Section: Introductionmentioning

confidence: 99%

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