公开(公告)号：US20070253055A1

公开(公告)日：2007-11-01

申请号：US11412018

申请日：2006-04-26

Applicant: Aref Chowdhury ,  Christopher Doerr ,  Gregory Raybon

Inventor： Aref Chowdhury ,  Christopher Doerr ,  Gregory Raybon

IPC: H01S3/00

CPC classification number: H01S5/5009 ,  H01S3/06712 ,  H01S3/10007 ,  H01S3/10023 ,  H01S3/1301 ,  H01S3/2308

Abstract: A polarization-diverse optical amplifier includes a polarization-sensitive optically active medium and a polarization splitter. The polarization splitter is configured to receive input light, to direct a first polarization component of the received input light to a first optical path segment, and to direct a second polarization component of the received input light to a separate second optical path segment. The active medium has first and second optical ports. The first optical port is at an end of the first optical path segment. The second port is at an end of the second optical path segment. The active medium outputs amplified light from one of the ports in response to receiving the input light at the other of the ports. In a preferred embodiment, the active medium has an internal optical axis, and the polarizations of the first and second components are oriented relative to that axis so that amplification is enhanced. The two optical path segments may include polarization-maintaining optical waveguides.

Abstract translation: 偏振分集光放大器包括偏振光敏光学介质和偏振分光器。 偏振分离器被配置为接收输入光，以将接收的输入光的第一偏振分量引导到第一光路段，并将接收的输入光的第二偏振分量引导到单独的第二光路段。 活动介质具有第一和第二光学端口。 第一光口位于第一光路段的一端。 第二端口处于第二光路段的一端。 响应于在另一个端口处接收输入光，有源介质从一个端口输出放大的光。 在优选实施例中，活性介质具有内部光轴，并且第一和第二组分的极化相对于该轴取向，从而增强了放大。 两个光路段可以包括偏振保持光波导。

公开(公告)号：US20070133632A1

公开(公告)日：2007-06-14

申请号：US11296996

申请日：2005-12-08

Applicant: Christopher Doerr

Inventor： Christopher Doerr

IPC: H01S3/098 ,  H01S3/13 ,  H01S3/08

CPC classification number: H01S5/026 ,  H01S3/083 ,  H01S3/1109 ,  H01S3/1115 ,  H01S5/0268 ,  H01S5/0657 ,  H01S5/1071 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/4087

Abstract: A mode-locked laser that has an optical cavity containing multiple optical amplifiers, each dedicated to a respective spectral portion of an optical signal generated by the laser, wherein the dispersion effects are managed by utilizing a separate intra-cavity phase tuner for each such spectral portion and/or by having appropriately configured waveguides corresponding to different spectral portions. Advantageously, a relatively wide combined gain spectrum provided by the optical amplifiers and the intra-cavity dispersion compensation provided by the phase tuners and/or waveguides enable this laser to realize a mode-locking regime that results in the emission of an optical pulse train having a relatively wide frequency spectrum. In one embodiment, the optical cavity of the mode-locked laser has a perfectly spectrally sampled arrayed waveguide grating (AWG) that is configured to divide the optical signal into the spectral portions and apply these portions to the respective waveguides, optical amplifiers, and phase tuners.

Abstract translation: 一种锁模激光器，其具有包含多个光放大器的光腔，每个光学放大器专用于由激光器产生的光学信号的相应光谱部分，其中通过对每个这样的光谱利用单独的腔内相位调谐器来管理色散效应 部分和/或通过具有对应于不同光谱部分的适当配置的波导。 有利地，由光放大器提供的相对较宽的组合增益光谱和由相位调谐器和/或波导提供的腔内色散补偿使得该激光器能够实现模锁定状态，其导致光脉冲串的发射具有 相对较宽的频谱。 在一个实施例中，锁模激光器的光腔具有完美的频谱采样阵列波导光栅（AWG），其被配置为将光信号分成光谱部分并将这些部分施加到相应的波导，光放大器和相位 调音器

公开(公告)号：US20060222295A1

公开(公告)日：2006-10-05

申请号：US11096022

申请日：2005-03-31

Applicant: Christopher Doerr

Inventor： Christopher Doerr

IPC: G02B6/26

CPC classification number: G02B6/29395 ,  G02B6/12011 ,  G02B6/12014 ,  G02B6/12021 ,  G02B6/12023 ,  G02B6/12033 ,  G02B6/29355 ,  G02B6/29394 ,  H04B10/25133

Abstract: Dispersion compensator apparatus comprising 1XM, MXN and NXN couplers, where the coupling ratios of the MXN and NXN couplers are selected such that the dispersion compensator provides a desired amount of dispersion compensation.

Abstract translation: 包括1XM，MXN和NXN耦合器的色散补偿器装置，其中选择MXN和NXN耦合器的耦合比，使得色散补偿器提供所需量的色散补偿。

公开(公告)号：US20050286911A1

公开(公告)日：2005-12-29

申请号：US10875016

申请日：2004-06-23

Applicant: Christopher Doerr ,  Douglas Gill

Inventor： Christopher Doerr ,  Douglas Gill

IPC: H04B10/06 ,  H04B10/158

CPC classification number: H04B10/69 ,  H04B10/677

Abstract: An optical differential phase shift key (DPSK) receiver, a method of demodulating an optical DPSK modulated signal and an optical processor capable of operating as either a DPSK receiver or DPSK transmitter. In one embodiment, the DPSK receiver includes: (1) an optical waveguide and a delay line associated therewith configured to receive simultaneously an optical DPSK modulated signal, (2) a coupler having at least two inputs and at least four outputs, the at least two inputs configured to terminate the optical waveguide and the delay line, the delay line having a path length difference that delays the optical DPSK modulated signal by at least one timeslot relative to the optical waveguide and (3) photodetectors associated with the at least four outputs and configured to provide signals indicative of digital data contained in components of the optical DPSK modulated signal.

Abstract translation: 光差分相移键（DPSK）接收机，解调光学DPSK调制信号的方法和能够作为DPSK接收机或DPSK发射机工作的光学处理器。 在一个实施例中，DPSK接收机包括：（1）光波导和与其相关联的延迟线，其被配置为同时接收光学DPSK调制信号，（2）具有至少两个输入和至少四个输出的耦合器，至少 两个输入被配置为终止光波导和延迟线，延迟线具有将光学DPSK调制信号相对于光波导延迟至少一个时隙的路径长度差，以及（3）与至少四个输出相关联的光电探测器 并且被配置为提供指示包含在光学DPSK调制信号的分量中的数字数据的信号。

公开(公告)号：US20050185878A1

公开(公告)日：2005-08-25

申请号：US10930382

申请日：2004-08-31

Applicant: Christopher Doerr ,  Dan Marom

Inventor： Christopher Doerr ,  Dan Marom

IPC: G02B6/34 ,  G02B6/35 ,  G02B6/12

CPC classification number: G02B6/356 ,  G02B6/12011 ,  G02B6/12019 ,  G02B6/3546 ,  G02B6/3548 ,  G02B6/3594

Abstract: An apparatus and method are provided for manipulating light beams propagated through PLCs in free space. Light beams propagated in through an input/output waveguide of a PLC are propagated through a waveguide array to generate a phased array output at an edge facet of the PLC. The phased array output at the edge facet is spatially Fourier transformed by a lens in free space, generating a spectrally resolved image at the back focal plane of the lens. The spectrally resolved image is reflected, at least in part, by a reflector device and coupled into a desired waveguide array of a PLC to produce a desired output.

Abstract translation: 提供了一种用于操纵在自由空间中通过PLC传播的光束的装置和方法。 通过PLC的输入/输出波导传播的光束通过波导阵列传播，以在PLC的边缘面产生相控阵列输出。 在边缘小面处的相控阵输出在自由空间中由透镜进行空间傅立叶变换，在透镜的后焦平面处产生光谱分辨图像。 至少部分地由反射器装置反射光谱分辨的图像，并将其耦合到PLC的所需波导阵列中以产生期望的输出。

公开(公告)号：US06922507B2

公开(公告)日：2005-07-26

申请号：US10378411

申请日：2003-03-03

Applicant: Christopher Doerr

Inventor： Christopher Doerr

IPC: G02B6/34 ,  G02F1/313 ,  G02B6/26

CPC classification number: G02B6/29355 ,  G02F1/3132 ,  G02F2201/16

Abstract: A low-loss integrated optical coupler includes at least three substantially similar optical couplers, adjacent ones of the optical couplers interconnected via at least one set of waveguides, each of the sets of waveguides comprising a path-length difference between the waveguides therein. In one embodiment of the present invention, the multi-section optical coupler comprises at least two arms and the path-length differences are adjustable such that signals traversing the at least two arms undergo a relative phase shift, such that a desired output power splitting ratio for the multi-section optical coupler is achieved. Alternatively, the optical coupler is implemented in an inventive optical device that functions at least, as an optical switch or an optical splitter.

Abstract translation: 低损耗集成光耦合器包括至少三个基本上相似的光耦合器，通过至少一组波导互连的相邻光耦合器中的每一个波导组中的每一个包括其中的波导之间的路径长度差。 在本发明的一个实施例中，多段光耦合器包括至少两个臂，并且路径长度差是可调节的，使得穿过至少两个臂的信号经历相对相移，使得期望的输出功率分配比 实现了多段光耦合器。 或者，光耦合器实现在本发明的光学装置中，其至少用作光开关或光分路器。

公开(公告)号：US20050053328A1

公开(公告)日：2005-03-10

申请号：US10657863

申请日：2003-09-09

Applicant: Christopher Doerr

Inventor： Christopher Doerr

IPC: G02B6/34 ,  H04B10/08 ,  H04J14/02 ,  G02B6/26

CPC classification number: H04B10/07955 ,  G02B6/12021 ,  G02B6/2793 ,  G02B6/29347 ,  G02B6/29355 ,  G02B6/29395 ,  G02B6/29397 ,  H04B10/077 ,  H04J14/0227

Abstract: The inventor proposes herein a novel optical monitor requiring only a single fiber-coupled photodetector. In one embodiment of the present invention, the optical monitor further includes an optical coupler for tapping a portion of an optical signal, a tunable filter for filtering the tapped optical signal at a predetermined frequency, and a Faraday rotator mirror for removing any polarization dependence of the tapped optical signal and for reflecting the filtered optical signal back through the tunable filter and the coupler. Subsequently, the photodetector of the optical monitor measures the power of the filtered optical signal. The optical spectrum of the optical signal is thus measured by scanning the tunable filter across the band of the optical signal and measuring the power of the optical signal as a function of the optical frequency of the tunable filter.

Abstract translation: 发明人在此提出了仅需要单个光纤耦合光电探测器的新型光学监视器。 在本发明的一个实施例中，光学监视器还包括一个光耦合器，用于抽出一部分光信号，一个可调谐滤波器，用于以预定频率对抽头的光信号进行滤波;以及法拉第旋转镜， 经过抽头的光学信号，并将经滤波的光信号反射回可调滤波器和耦合器。 随后，光学监视器的光电检测器测量滤波后的光信号的功率。 因此，通过扫描光信号的频带上的可调谐滤波器来测量光信号的光谱，并根据可调滤波器的光频测量光信号的功率。

公开(公告)号：US20050046843A1

公开(公告)日：2005-03-03

申请号：US10647662

申请日：2003-08-25

Applicant: Christopher Doerr ,  Hoon Kim

Inventor： Christopher Doerr ,  Hoon Kim

IPC: H04B10/155 ,  G01J4/00

CPC classification number: H04B10/505 ,  H04B10/5051

Abstract: Timing alignment between a pulse carver (i.e., intensity modulator) and a phase modulator, e.g., in a return-to-zero (RZ) differential phase-shift keying (DPSK) optical transmitter, is monitored by filtering a signal from the transmitter and measuring the power of the filtered signal. In certain embodiments, the filter has a birefringent device (such as a polarization-maintaining fiber) and a polarizer. The polarizer may be a rotating polarizer with a rotating quarter-wave plate in front of it. In other embodiments, the filter is a periodic filter such as a Mach-Zehnder interferometer or an etalon filter. Regardless, the measured power may be used to generate control signals used to variably delay the signals that drive the phase modulator and/or the pulse carver to compensate for detected misalignment. The measured power may also be used to monitor the bit-error-rate degradation caused by timing misalignment between the pulse carver and the phase modulator.

公开(公告)号：US20120155806A1

公开(公告)日：2012-06-21

申请号：US13012693

申请日：2011-01-24

Applicant: Christopher Doerr ,  Peter Winzer

Inventor： Christopher Doerr ,  Peter Winzer

IPC: G02B6/34 ,  B05D5/06

CPC classification number: G02B6/4249 ,  G02B6/29323 ,  G02B6/30 ,  G02B6/34 ,  G02B6/43 ,  G02B2006/12107

Abstract: An optical device includes an array of optical grating couplers and a plurality of single-core fiber couplers located over a planar substrate. The optical grating couplers of the array are located to optically couple in a one-to-one manner to optical cores of a multi-core fiber or optical cable having an end located adjacent to the surface. Each single-core fiber coupler includes a planar optical waveguide connecting a corresponding one of the optical couplers of the array to an edge of the substrate.

Abstract translation: 光学器件包括光栅耦合器阵列和位于平面衬底上的多个单芯光纤耦合器。 阵列的光栅耦合器被定位成以一对一的方式光耦合到具有位于表面附近的端部的多芯光纤或光缆的光芯。 每个单芯光纤耦合器包括将该阵列的相应一个光耦合器连接到该基板的边缘的平面光波导。

公开(公告)号：US20070098325A1

公开(公告)日：2007-05-03

申请号：US11565338

申请日：2006-11-30

Applicant: Christopher Doerr ,  David Levy

Inventor： Christopher Doerr ,  David Levy

IPC: G02F1/035 ,  G02B6/26

CPC classification number: G02B6/12021 ,  H04J14/0204 ,  H04J14/0206 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0219 ,  H04J14/0221

Abstract: A proposed integrateable optical interleaver includes an input Y-branch coupler and at least two multi-section optical couplers. The multi-section optical couplers of the interleaver include at least three substantially similar optical couplers, adjacent ones of the optical couplers interconnected via at least one set of waveguides. The interleaver of the present invention comprises a highly compact and fabrication-robust form that is capable of being integrated onto a single planar lightwave circuit.

Abstract translation: 所提出的可组合光交错器包括输入Y分支耦合器和至少两个多段光耦合器。 交织器的多段光耦合器包括至少三个基本相似的光耦合器，通过至少一组波导互连的相邻光耦合器中的相邻光耦合器。 本发明的交织器包括能够集成到单个平面光波电路上的高度紧凑且制造稳健的形式。