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SOA全光波长转换技术及其研究进展 总被引:1,自引:0,他引:1
对基于半导体光放大器(SOA)全光波长转换技术的性能和特点进行了分析与比较.在此基础上,介绍了基于半导体光放大器(SOA)全光波长转换技术的最新改进方案和研究进展,并对其应用前景和发展方向进行了展望. 相似文献
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波长转换是实现WDM全光网络的关键技术之一。通过波长转换,可以减小由于波长竞争带来的阻塞概率,使网络所需滤长数变为最小,网络管理和控制更加灵活,并具有高的可靠性和可扩充性。基于半导体光放大器的全光波长转换技术具有大的优势。本文首先介绍了WDM全光网络的概念,分层模型及其优势,然后指出滤长转换的重要性和技术要求,最后分别介绍了基于半导体光放大器的三种滤长转换器的原理、结构和各自的优缺点。 相似文献
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基于级联半导体光放大器(SOA)实现全光逻辑与门的方案中,第一级输出信号质量直接影响逻辑与运算结果.采用载流子恢复较慢的体材料半导体光放大器用于第一级转换,在10 Gbit/s以上得不到理想的转换结果,限制了该方案实现逻辑与门的速率.利用光纤延时干涉仪(DI)和第一级半导体光放大器级联可以改善第一级输出信号质量,从而有效提高第二级全光逻辑与门的实现速率.阐述了改进方案中延时干涉仪的作用,并进行了数值模拟.根据实验结果,采用载流子恢复较慢的半导体光放大器级联延时干涉仪能够实现高速归零(RZ)信号和非归零(NRZ)信号的反码,从而得到较高速率的全光逻辑与门.实验实现了20 Gbit/s的伪随机归零和非归零信号的全光逻辑与门,对40 Gbit/s的结果进行了分析和讨论. 相似文献
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A new all-optical semiconductor-band-filling-based wavelength converter, named delayed-interference signal-wavelength converter (DISC), is proposed. Its speed is not restricted by the carrier lifetime and its structure is very simple: it consists of only two essential components, namely, a semiconductor optical amplifier and a passive split-delay. Using this converter, 3.8-THz-shifted (from 1530 to 1560-nm) 14-ps-long pulses are generated from 1530-nm 140-fJ 0.7-ps pulses with high-conversion efficiency 相似文献
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Optical packet switching and buffering by using all-optical signal processing methods 总被引:3,自引:0,他引:3
Dorren H.J.S. Hill M.T. Liu Y. Calabretta N. Srivatsa A. Huijskens F.M. de Waardt H. Khoe G.D. 《Lightwave Technology, Journal of》2003,21(1):2-12
We present a 1 /spl times/ 2 all-optical packet switch. All the processing of the header information is carried out in the optical domain. The optical headers are recognized by employing the two-pulse correlation principle in a semiconductor laser amplifier in loop optical mirror (SLALOM) configuration. The processed header information is stored in an optical flip-flop memory that is based on a symmetric configuration of two coupled lasers. The optical flip-flop memory drives a wavelength routing switch that is based on cross-gain modulation in a semiconductor optical amplifier. We also present an alternative optical packet routing concept that can be used for all-optical buffering of data packets. In this case, an optical threshold function that is based on a asymmetric configuration of two coupled lasers is used to drive a wavelength routing switch. Experimental results are presented for both the 1 /spl times/ 2 optical packet switch and the optical buffer switch. 相似文献
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All-optical 1300-nm to 1550-nm wavelength conversion using cross-phase modulation in a semiconductor optical amplifier 总被引:1,自引:0,他引:1
All-optical 1300-nm to 1550-nm wavelength converters may be important components in lightwave networks which use both the 1300-nm and the 1550-nm low-loss transmission windows of silica optical fiber. We describe a new all-optical 1300-nm to 1550-nm wavelength converter, based on cross-phase modulation in a 1300-nm semiconductor optical amplifier. We demonstrate operation of the wavelength converter at 1.25 Gb/s, and present bit-error rate measurements. The wavelength converter demonstrated here potentially operates at high speed, with low input power and low polarization-sensitivity. 相似文献
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Leuthold J. Marom D.M. Cabot S. Jaques J.J. Ryf R. Giles C.R. 《Lightwave Technology, Journal of》2004,22(1):186-192
We introduce a general concept for the design of all-optical wavelength converters with pulse reformatting functionality. The novel wavelength converters are based on a single semiconductor optical amplifier followed by an optical filter. A microelectromechanical system-based realization is shown and simultaneous 40 Gb/s wavelength conversion, switching and signal format conversion is demonstrated. The new pulse reformatting optical filter device outperforms current schemes with respect to input-power requirements, input-power dynamic range and signal quality. 相似文献
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Gomez-Agis F. Raz O. Zhang S.J. Tangdiongga E. Zimmermann L. Voigt K. Vyrsokinos C. Stampoulidis L. Dorren H.J.S. 《Electronics letters》2009,45(22):1132-1133
Error-free operation of an all-optical wavelength converter at 160 Gbit/s based on a semiconductor optical amplifier and a silicon-on-insulator photonic circuit, consisting of two cascaded Mach-Zehnder delay interferometers, is demonstrated. 相似文献
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W. Shieh E. Park A.E. Wilner 《Photonics Technology Letters, IEEE》1996,8(4):524-526
We demonstrate all-optical wavelength shifting over 9 nm for two microwave subcarriers by using four-wave mixing in a semiconductor optical amplifier. In our experiment, the RF spectrum is relatively unaffected by wavelength shifting and the resultant system power penalty is /spl sim/0.5 dB. Such a transparent wavelength shifter may be a critical component in WDM networks supporting both subcarrier multiplexed (SCM) and high speed digital transmission. 相似文献
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A novel all-optical phase modulation and wavelength conversion has been demonstrated in a traveling wave semiconductor laser amplifier. Even though the optical gain modulation caused by the saturation effect in a traveling wave semiconductor laser amplifier is sensitive to the signal wavelength, the optically controlled phase modulation is relatively independent of the signal wavelength 相似文献
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Armstrong I. Andonovic I. Kelly A.E. Bonthron S. Bebbington J. Michie C. Tombling C. Fasham S. Johnstone W. 《Lightwave Technology, Journal of》2005,23(5):1852-1859
The development of a high-performance hybrid integration platform is demonstrated using an all-optical wavelength converter based on an integrated semiconductor optical amplifier (SOA) Mach-Zehnder interferometer (MZI). The device structure, transfer functions, power penalties and regenerative properties are presented for data rates up to 10 Gb/s. 相似文献
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Leuthold J. Moller L. Jaques J. Cabot S. Zhang L. Bernasconi P. Cappuzzo M. Gomez L. Laskowski E. Chen E. Wong-Foy A. Griffin A. 《Electronics letters》2004,40(9):554-555
The retiming and reshaping properties of a 160 Gbit/s all-optical wavelength converter based on a semiconductor optical amplifier gating delay interferometer configuration is investigated. 160 Gbit/s operation is performed with as little as -3.5 dBm input signal. 相似文献