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公开(公告)号：US5450229A
公开(公告)日：1995-09-12
申请号：US128958
申请日：1993-09-29
申请人： Jay M. Wiesenfeld
发明人： Jay M. Wiesenfeld
CPC分类号： H01S5/50 , H01S5/0608 , H01S5/509
摘要： A method and apparatus for wavelength shifting an intensity-modulated optical signal are provided. The present invention utilizes an intensity-modulated first optical signal at a first wavelength, a second optical signal at a second wavelength and an optical amplifier with a gain which varies with the intensity modulation of the first optical signal. The optical amplifier receives and amplifies the first and second signals such that variations in the intensity modulation of the first optical signal alter the optical amplifier gain, producing an amplified second optical signal with corresponding intensity variations. In accordance with the invention the power level of the second optical signal is adjusted to reduce the amplifier gain recovery time and thereby reduce the rise time of the intensity variations of the amplified second optical signal. Optical wavelength shifting by amplifier gain compression is thereby made possible at bit rates of 10 Gbits/sec or higher.
摘要翻译： 提供了一种用于波长移位强度调制光信号的方法和装置。 本发明利用第一波长的强度调制的第一光信号，第二波长的第二光信号和具有随着第一光信号的强度调制而变化的增益的光放大器。 光放大器接收并放大第一和第二信号，使得第一光信号的强度调制的变化改变光放大器的增益，产生具有相应强度变化的放大的第二光信号。 根据本发明，调整第二光信号的功率电平以减小放大器增益恢复时间，从而减小放大的第二光信号的强度变化的上升时间。 因此，通过放大器增益压缩的光波长偏移可以在10G比特/秒或更高的比特率下实现。
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公开(公告)号：US5657148A
公开(公告)日：1997-08-12
申请号：US646169
申请日：1996-05-07
申请人： Mark D. Feuer , Jay M. Wiesenfeld
发明人： Mark D. Feuer , Jay M. Wiesenfeld
CPC分类号： H01S5/0265 , H01S5/50
摘要： A single-port, reflective, optical modulator with internal amplification. In one advantageous embodiment of the present invention, the single-port modulator includes a semiconductor waveguide amplifier with a high reflector at one end. The single-port geometry reduces the high packaging cost associated with two-port modulators, while the internal amplification compensates for splitting and coupling losses. The single-port optical modulator generally includes an input/output port for receiving a light input signal. A modulation region for modulating the light input signal in response to an electrical drive signal is included along with an amplification region for providing amplification of the light input signal. The modulation region and the amplification region include a waveguide for directing the light input signal. A high reflector coupled at one end of the waveguide opposite the input/output port is operable to reflect the light input signal back toward the input/output port, wherein an amplified and modulated light signal is output therefrom.
摘要翻译： 具有内部放大功能的单端口，反射式光学调制器。 在本发明的一个有利实施例中，单端口调制器包括在一端具有高反射器的半导体波导放大器。 单端口几何形状降低了与双端口调制器相关的高封装成本，而内部放大补偿了分离和耦合损耗。 单端口光调制器通常包括用于接收光输入信号的输入/输出端口。 包括用于响应于电驱动信号调制光输入信号的调制区域以及用于提供光输入信号的放大的放大区域。 调制区域和放大区域包括用于引导光输入信号的波导。 耦合在与输入/输出端口相对的波导的一端处的高反射器可操作以将光输入信号反射回输入/输出端口，其中从其输出放大和调制的光信号。
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公开(公告)号：US4939474A
公开(公告)日：1990-07-03
申请号：US431693
申请日：1989-11-03
CPC分类号： H01S5/50 , H01S5/06226 , H01S5/227 , H01S5/2275
摘要： An improved semiconductor optical amplifier with shortened gain-recovery time is disclosed. In the inventive device a carrier-storage region is placed adjacent to the gain region of the amplifier. Passage of carriers from the storage region to the gain region rapidly replenishes the carrier population within the gain region, thereby permitting rapid recovery of the amplifier gain.
摘要翻译： 公开了一种具有缩短的增益恢复时间的改进的半导体光放大器。 在本发明的装置中，载流子存储区域被放置成与放大器的增益区域相邻。 载波从存储区域到增益区域的通过快速补充增益区域内的载波群体，从而允许放大器增益的快速恢复。
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4.发明授权All-optical mach-zehnder wavelength converter with monolithically integrated laser 失效全光学Mach-Zehnder波长转换器与单片集成激光器公开(公告)号：US06208454B1
公开(公告)日：2001-03-27
申请号：US08997204
申请日：1997-12-23
IPC分类号： G02F135
CPC分类号： H01S5/50 , G02F2/004 , G02F2001/212 , H01S5/026 , H01S5/12
摘要： A wavelength converter incorporating an on-chip integrated laser for use in an optical system. The converter includes a first port for receiving an optical input signal such as a WDM signal and providing it to an interferometer, and an output port for outputting a signal which is a wavelength-converted version of the input signal. An optical source or laser is fabricated on the chip substrate on which the interferometer is formed for providing operating power to the interferometer. Power levels of the input signal are maintained by adjusting an on-chip semiconductor optical amplifier that receives the optical input signal and provides the amplified signal to the interferometer. In an alternative embodiment, the on-chip optical source is replaced by an on-chip pre-amplifier for an external laser source.
摘要翻译： 一种掺入了用于光学系统的片上集成激光器的波长转换器。 转换器包括用于接收诸如WDM信号的光输入信号并将其提供给干涉仪的第一端口以及用于输出作为输入信号的波长转换版本的信号的输出端口。 在其上形成干涉仪的芯片基板上制造光源或激光器，以向干涉仪提供工作电力。 通过调整接收光输入信号的片上半导体光放大器并将放大的信号提供给干涉仪来维持输入信号的功率电平。 在替代实施例中，片上光源由用于外部激光源的片上前置放大器代替。
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公开(公告)号：US6078417A
公开(公告)日：2000-06-20
申请号：US863348
申请日：1997-05-29
CPC分类号： H04B10/2939 , H04B10/2914 , H04B10/299
摘要： An optical network comprising a broad band optical source having a temporal characteristic and an optical wavelength conversion apparatus. The optical wavelength conversion apparatus comprising a laser means for producing a narrow band optical spectrum signal, a means for receiving a broad band optical signal having a temporal characteristic, and a spectral compactor means. The spectral compactor means is responsive to the narrow band optical spectrum signal and the broad band optical signal, for modulating the narrow band optical signal with the temporal characteristic of the broad band optical signal. A polarization reset apparatus comprises a laser means for producing a narrow band optical spectrum signal having a first polarization, a means for generating a second optical signal having a temporal characteristic and a second polarization, and a spectral compactor means responsive to the first and second optical signals for modulating the first optical signal with the temporal characteristics of the second optical signal to produce an output signal having the temporal characteristic of the second optical signal and the spectral and polarization characteristics of the first optical signal.
摘要翻译： 一种包括具有时间特性的宽带光源和光波长转换装置的光网络。 光波长转换装置包括用于产生窄带光谱信号的激光装置，用于接收具有时间特性的宽带光信号的装置和光谱压缩装置。 光谱压缩器装置响应于窄带光谱信号和宽带光信号，用于利用宽带光信号的时间特性来调制窄带光信号。 偏振复位装置包括用于产生具有第一偏振的窄带光谱信号的激光装置，用于产生具有时间特性和第二偏振的第二光信号的装置，以及响应于第一和第二光学的频谱压缩装置 用于利用第二光信号的时间特性来调制第一光信号的信号，以产生具有第二光信号的时间特性和第一光信号的频谱和极化特性的输出信号。
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6.发明授权Dynamic add/drop of channels in a linear-optical-amplifier-based wavelength-division-multiplexed system 有权基于线性光学放大器的波分复用系统中的信道的动态加/减公开(公告)号：US06856768B2
公开(公告)日：2005-02-15
申请号：US09796729
申请日：2001-03-02
IPC分类号： H04B10/155 , H04B10/17 , H04J14/02 , H04B10/00
CPC分类号： H04B10/50 , H04B10/2916 , H04B10/296 , H04J14/0201 , H04J14/0221
摘要： A system and method is provided for minimizing power fluctuations and crosstalk in a wavelength division multiplexed optical (WDM) network employing dynamic add/drop techniques by utilizing amplifiers operating in a nearly linear region. Conventionally, erbium-doped fiber amplifiers (EDFAs) are operated in saturation for providing signal amplification in a WDM network. Instead of using saturated EDFAs, the present invention includes optical amplifiers operated in a linear or nearly linear regime for providing signal amplification in a dynamic add/drop or bursty data WDM network. By operating optical amplifiers in a linear or nearly linear regime, power fluctuations, transients and crosstalk caused by adding/dropping or switching channels in the WDM network are minimized. Raman amplifiers, EDFAs, or semiconductor optical amplifiers (SOAs) can all be operated in a linear or nearly linear range to provide linear amplification in such a dynamic add/drop or bursty data WDM network.
摘要翻译： 提供了一种系统和方法，用于通过利用在近似线性区域中操作的放大器来最小化使用动态分插技术的波分复用光（WDM）网络中的功率波动和串扰。 通常，掺铒光纤放大器（EDFA）在饱和状态下工作，以在WDM网络中提供信号放大。 代替使用饱和EDFA，本发明包括以线性或近似线性方式操作的光放大器，用于在动态分插或突发数据WDM网络中提供信号放大。 通过以线性或近似线性的方式操作光放大器，可以最大限度地减少在WDM网络中增加/丢弃或切换通道引起的功率波动，瞬变和串扰。 拉曼放大器，EDFA或半导体光放大器（SOAs）都可以在线性或近似线性范围内运行，以在这样的动态分插或突发数据WDM网络中提供线性放大。
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公开(公告)号：US5400164A
公开(公告)日：1995-03-21
申请号：US120013
申请日：1993-09-10
IPC分类号： G02F1/35 , H01S5/026 , H01S5/50 , H04B10/02 , H04B10/04 , H04B10/06 , H04B10/14 , H04B10/18 , H04B10/26 , H04B10/28 , H04B10/00 , H01S3/00
CPC分类号： H04B10/2531 , G02F1/3538 , H04B10/2563 , H01S5/026 , H01S5/50 , H01S5/509
摘要： The present invention provides an apparatus and method for performing polarization-insensitive four-photon mixing of optical signals. The polarization-insensitive optical mixer includes a polarization splitter for splitting an optical signal into parallel and perpendicular polarization components, different mixing paths for mixing a pump signal of like polarization with each of the parallel and perpendicular components in a nonlinear mixing device, and a polarization combiner for combining the resulting mixing products. Certain of the mixing products represent phase conjugates of the input optical signal, and are therefore useful in compensating for chromatic distortion in optical fiber.
摘要翻译： 本发明提供一种用于执行光信号的偏振不敏感四光子混合的装置和方法。 偏振不敏感的光学混合器包括用于将光学信号分离为平行和垂直偏振分量的偏振分离器，用于将类似偏振的泵浦信号与非线性混合装置中的每个平行和垂直分量混合的不同混合路径以及极化 组合器，用于组合所得到的混合产物。 某些混合产物表示输入光信号的相位共轭，因此可用于补偿光纤中的色失真。
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