21 |
相位优化装置及其方法 |
CN200410098196.9 |
2004-09-06 |
CN1614498A |
2005-05-11 |
金周晔; 汉相国 |
一种通过使用半导体光放大器从XPM从Mach-Zehnder干扰仪波长转换器输出的光信号中反馈一部分以保持两个臂间的最佳相位差、从而获得最大消光比的相位优化装置和方法。该相位优化装置包括具有放大激励信号和探测信号的第一半导体光放大器的第一臂;具有放大探测信号的第二半导体光放大器和控制放大的信号相位的π移相器的第二臂;滤波光信号以仅输出调制探测信号的光学带通滤波器;和接收反馈以将相位控制信号输出给第二臂的π移相器的相位控制单元,相位控制信号控制第一和第二臂之间的相位差。 |
22 |
光波长变换器 |
CN98811665.0 |
1998-11-05 |
CN1295742A |
2001-05-16 |
皮埃尔保罗·伯非; 鲁西亚·马拉奇; 马里奥·马尔迪内里 |
本发明提供了一种光波长变换器,其能够快速且高效地把在一个波长上调制的信息传递到第二波长的光信号而不会带来噪声和其它干扰,这些噪声和干扰已被证明是现有技术中的问题。该装置把第一波长的CW探测信号分裂成两个分量,它们通过克耳支路以相反的方向传播。在克耳支路中还传播第二波长的调制的驱动信号。这些信号在克耳支路中相互作用,并在输出耦合器中被重新组合,使得在两个探测分量之间产生干扰。输出一个强度调制的探测信号。 |
23 |
调制非稳定性波长变换器 |
CN98806427.8 |
1998-06-11 |
CN1261445A |
2000-07-26 |
M·伊斯兰 |
本发明提供一种全波导光纤变换装置,它利用调制的非稳定性在整个变换带宽上变换信号波长,同时相对于诸如采用四波混频等其它波长变换装置保持低的泵激光功率。本发明的变换装置工作在波导的反常色散区,且发生变换的波导的零色散低于泵波长,使得对于零色散波长上下的信号波长能发生变换。变换效率在约25dB-30dB范围。 |
24 |
WAVELENGTH CONVERSION DEVICE, CONTROL-LIGHT GENERATION DEVICE, WAVELENGTH CONVERSION METHOD, AND CONTROL-LIGHT GENERATION METHOD |
US16358622 |
2019-03-19 |
US20190212631A1 |
2019-07-11 |
Tomoyuki Kato; Shigeki Watanabe; Takeshi Hoshida |
A wavelength conversion device that converts input signal light having a first frequency into output signal light having a second frequency, includes: a control-light generator that outputs first continuous oscillation light and second continuous oscillation light; and a nonlinear optical medium that cross-phase modulates the input signal light with the first continuous oscillation light and the second continuous oscillation light and generates the output signal light, wherein the control-light generator outputs the first continuous oscillation light and the second continuous oscillation light to have polarized waves in directions orthogonal to each other and have a frequency interval equal to a difference between the first frequency and the second frequency and controls, based on intensity of the output signal light, timings of modulation of phases of the first continuous oscillation light and the second continuous oscillation light to be aligned with each other. |
25 |
Luminous systems |
US15726581 |
2017-10-06 |
US10101003B2 |
2018-10-16 |
M. Glenn Horner; Edward D. Kingsley; Satish Agrawal; Louis Cincotta |
A luminous system comprising one or more illumination sources, a multilayer structure, and one or more diffuse reflection layers being optically decoupled from the multilayer structure, wherein the emission and the reflection of the luminous system produce a first observed visible color when the one or more illumination sources are powered and a second observed visible color when the one or more illumination sources are non-powered is disclosed. Also disclosed are methods of creating the inventive luminous system. |
26 |
DETECTOR REMODULATOR |
US15369804 |
2016-12-05 |
US20170082876A1 |
2017-03-23 |
Haydn Frederick Jones; Andrew George Rickman; Aaron John Zilkie; Guomin Yu; Hooman Abediasl |
A detector remodulator comprising a silicon on insulator (SOI) waveguide platform including: a detector coupled to a first input waveguide; a modulator coupled to a second input waveguide and an output waveguide; and an electrical circuit connecting the detector to the modulator; wherein the detector, modulator, second input waveguide and output waveguide are arranged within the same horizontal plane as one another; and wherein the modulator includes a modulation waveguide region at which a semiconductor junction is set horizontally across the waveguide. |
27 |
Reconfigurable optical networks |
US13800403 |
2013-03-13 |
US09164300B2 |
2015-10-20 |
Pietro Bernasconi; Po Dong; David T. Neilson; Young-Kai Chen |
A system, e.g. a reconfigurable electro-optical network, includes input and output waveguides. The input waveguide is configured to receive a first input optical signal including a first modulated input wavelength channel. The output waveguide is configured to receive a carrier signal including an unmodulated output wavelength channel. An input microcavity resonator is configured to derive a modulated electrical control signal from the modulated input wavelength channel. A first output microcavity resonator is configured to modulate the output wavelength channel in response to the control signal. |
28 |
DETECTOR REMODULATOR |
US14629922 |
2015-02-24 |
US20150277157A1 |
2015-10-01 |
Haydn Frederick Jones; Andrew Rickman; Aaron John Zilkie |
A detector remodulator comprising a silicon on insulator (SOI) waveguide platform including: a detector coupled to a first input waveguide; a modulator coupled to a second input waveguide and an output waveguide; and an electrical circuit connecting the detector to the modulator; wherein the detector, modulator, second input waveguide and output waveguide are arranged within the same horizontal plane as one another; and wherein the modulator includes a modulation waveguide region at which a semiconductor junction is set horizontally across the waveguide. |
29 |
SURFACE PLASMON POLARITON CIRCUIT ELEMENT WITH DISCONTINUOUS WAVEGUIDE WITH GAP AND APPARATUS AND METHOD FOR GENERATING SURFACE PLASMON POLARITON MODE |
US14501741 |
2014-09-30 |
US20150093071A1 |
2015-04-02 |
Myung Hyun LEE; Dong Hun LEE |
A plasmonic device and an apparatus and method for generating a surface plasmon polariton (SPP) mode using the plasmonic device are disclosed herein. The plasmonic device includes a first plasmonic waveguide and a second plasmonic waveguide. The first plasmonic waveguide is made of a strip-shaped metal material forming at least one pair of first metal-dielectric interfaces along with a dielectric layer, and extends from an input location to a gap start location. The second plasmonic waveguide is made of a strip-shaped metal material forming at least one pair of second metal-dielectric interfaces in planes identical to those of the at least one pair of first metal-dielectric interfaces of the first plasmonic waveguide, and extends from a gap end location, spaced apart from the gap start location by the length of a gap along the propagation direction of the SPP, to an SPP output location. |
30 |
Luminous Systems |
US13963032 |
2013-08-09 |
US20150041683A1 |
2015-02-12 |
M. Glenn Horner; Edward D. Kingsley; Satish Agrawal; Louis Cincotta |
A luminous system comprising one or more illumination sources, a multilayer structure, and one or more diffuse reflection layers being optically decoupled from the multilayer structure, wherein the emission and the reflection of the luminous system produce a first observed visible color when the one or more illumination sources are powered and a second observed visible color when the one or more illumination sources are non-powered is disclosed. Also disclosed are methods of creating the inventive luminous system. |
31 |
Device for controlling optical frequency, method of manufacturing such a device |
US13387607 |
2010-07-26 |
US08885247B2 |
2014-11-11 |
Xavier Letartre; Pierre Viktorovitch; Jean-Louis Leclercq; Christian Seassal |
The present invention relates to a device for controlling optical frequency (F1, F2) about a central working frequency (F0). This device comprises a vertical cavity (2) formed of two parallel and partially reflecting walls (3a, 3b), and a membrane (6) comprising at least one layer (7a, 7b) structured in the form of a photonic crystal. In this device, the two walls (3a, 3b) are separated by an optical distance substantially proportional to half the wavelength (λ0) corresponding to the central working frequency (F0). The membrane (6) is integrated between the walls (3a, 3b) of the cavity (2) and devised in such a way as to exhibit a mode of optical resonance at this central working wavelength (λ0). At least one layer of the device is made up of at least one portion of a material exhibiting nonlinear optical properties. The present invention also relates to various systems implementing means of optical pumping and such a device for controlling optical frequency, as well as to a method of manufacturing such a device for controlling optical frequency. |
32 |
Nonlinear and gain optical devices formed in metal gratings |
US12044038 |
2008-03-07 |
US08587856B2 |
2013-11-19 |
Gang Chen; Ronen Rapaport |
A nonlinear optical system comprises a metallic film having a first side and a second side. The nonlinear optical system further comprises a regular array of slits in the metallic film. The slits connect the first and second sides of the metallic film. The array is configured to selectively transmit through the metallic film light having frequencies of a selected frequency band. The nonlinear optical system still further comprises a nonlinear optical material situated within the slit. |
33 |
Terahertz radiation device and method of generating terahertz radiation |
US13042775 |
2011-03-08 |
US08269200B2 |
2012-09-18 |
Michael Wraback; Paul H Shen |
A method and device for generating terahertz radiation comprising a substrate; a plurality of segments of polar crystal material formed on the substrate, the segments having an internal electric polarization; each segment comprising at least two edges oriented substantially perpendicular to the polar axis such that the electric polarization terminates at the edges and the segment comprises a majority of positive charges on one edge and a majority of negative charges on the opposite edge thereby leading to creation of an internal electric field; whereby when irradiated by a pulsed source of duration less than one picosecond, electron-hole pairs are generated within the segments and the internal electric field separates and accelerates the electron-hole pairs to thereby produce terahertz radiation. |
34 |
OPTICAL SIGNAL PROCESSING DEVICE AND METHOD OF PROCESSING OPTICAL SIGNAL |
US12639964 |
2009-12-16 |
US20100220997A1 |
2010-09-02 |
Fumio FUTAMI |
An optical signal processing device for shaping a waveform of an optical signal, including: an intensity inversion wavelength converter configured to generate an intensity-modulated optical signal of a second wavelength obtained by inverting a signal intensity of an input intensity-modulated optical signal of a first wavelength; an optical coupler configured to multiplex the intensity-modulated optical signal of the first wavelength and the intensity-modulated optical signal of the second wavelength at a timing at which signal intensities of those signals become opposite; and an optical limiter configured to input coupled light output from the optical coupler, and suppress gain as power of the coupled light becomes higher. |
35 |
Three-terminal optical signal amplifying device |
US12458357 |
2009-07-09 |
US20090279165A1 |
2009-11-12 |
Yoshinobu Maeda |
In the three-terminal optical signal amplifying device 10, a portion of the neighboring light LS at other wavelength than that of the first wavelength λ1 that is selected from the output light from the element 14 by the optical add drop filter 16, and the control light LC at the second wavelength λ2 input from the external are together input to the second semiconductor optical amplifying element 18. The output light including the output signal light LOUT at the second wavelength λ2 and the neighboring light at the neighboring wavelength to the second wavelength λ2 that is modulated and controlled by the control light LC in the cross gain modulation is output from the second semiconductor optical amplifying element 18. And the output signal light LOUT at the second wavelength λ2 passes through the wavelength selecting filter 20. |
36 |
Optical modulator and optical signal generation apparatus |
US12289871 |
2008-11-06 |
US20090195860A1 |
2009-08-06 |
Shin Arahira; Hitoshi Murai |
An optical modulator includes, a first polarization separation and combination portion, a second polarization separation and combination portion, a first polarization plane-maintaining optical fiber, a second polarization plane-maintaining optical fiber, a third polarization plane-maintaining optical fiber of which a first end is coupled with the second input and output terminal of the second polarization separation and combination portion, the third polarization plane-maintaining optical fiber including a first optical coupler, to which control light that is linearly polarized light is input, a fourth polarization plane-maintaining optical fiber of which a first end is coupled with the third input and output terminal of the second polarization separation and combination portion; and a first polarization plane conversion portion that optically communicates with a second end of the third polarization plane-maintaining optical fiber and a second end of the fourth polarization plane-maintaining optical fiber. |
37 |
Wavelength converter |
US10937575 |
2004-09-10 |
US07437083B2 |
2008-10-14 |
Bruno Lavigne; Olivier Leclerc; Jean-Luc Moncelet; Alex Bombrun; Jean-Baptiste Pomet; Fabien Seyfert |
A wavelength converter for binary optical signals includes an interferometer structure (110) for generating an output signal by modulating a received local signal (LS) according to the modulation of a fUrther received first input signal (IS 1). When such interferometer structures (110) are operated in a standard mode it is known in the art to control the power of the input signal such that the extinction ratio of the output signal is kept minimal. The invention also controls the power of the input signals to achieve the minimal extinction ratio when the wavelength converter and in particular the interferometer structure (110) is operated in a differential mode receiving two input signals. |
38 |
All-optical phase, wavelength, and polarization-insensitive wavelength converters |
US11537638 |
2006-09-30 |
US07433561B2 |
2008-10-07 |
Arie Shahar |
An all-optical device for wavelength conversion, reshaping, modulating, and regenerating. The device includes a splitting device having first, second, third, and fourth terminals and a nonlinear element. The third and fourth terminals are associated with an optical loop including the nonlinear element when the nonlinear element is displaced from the mid-point of the optical loop. The splitting device is arranged to receive a modulated signal from one of the first and second terminals and a continuous beam from one of the first and second terminals to generate a patterned signal based on the continuous beam at one of the first and second terminals when the pattern of the patterned signal is inverted with respect to the pattern of the modulated signal. |
39 |
Multi-frequency light source |
US11407141 |
2006-04-20 |
US07408701B2 |
2008-08-05 |
Osamu Aso; Shunichi Matushita; Misao Sakano; Masateru Tadakuma |
A multi-frequency light producing method and apparatus multiplies the number of optical channels present in an incident wavelength division multiplexed (WDM) signal light source by four-wave mixing (FWM) the WDM signal with at least one pump lightwave at least one time. By FWM the WDM light and a pump lightwave multiple times, wherein each FWM process is executed with a pump lightwave having a different frequency, either in series or parallel, the number of optical channels produced as a result of FWM effectively increases the number of optical channels present in addition to those from the WDM signal. The light producing method and apparatus can be employed in a telecommunications system as a an inexpensive light source producing a plurality of optical frequencies. |
40 |
Optical signal amplifying triode and optical signal transfer method, optical signal relay device, and optical signal storage device using the same |
US11783243 |
2007-04-06 |
US07343065B2 |
2008-03-11 |
Yoshinobu Maeda |
When in an optical signal amplifying triode 10, light of a second wavelength λ2, selected from among light from a first optical amplifier 26, into which a first input light L1 of a first wavelength λ1 and a second input light L2 of second wavelength λ2 have been input, and a third input light (control light) L3 of a third wavelength λ3 are input into a second optical amplifier 34, an output light L4 of the third wavelength λ3, selected from among the light output from the second optical amplifier 34, is light that is modulated in response to the intensity variation of one or both of the first input light L1 of the first wavelength λ1 and the third input light L3 of the third wavelength λ3 and is an amplified signal, with which the signal gain with respect to the third input light (control light) L3 of the third wavelength λ3 is of a magnitude of 2 or more. An optical signal amplifying triode 10, which can directly perform an optical signal amplification process using control input light, can thus be provided. |