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1. 发明授权

US06676305B2 Apparatus and method of aligning optical fibers to optical devices 失效
标题翻译：将光纤对准光学器件的设备和方法
公开(公告)号：US06676305B2
公开(公告)日：2004-01-13
申请号：US10058342
申请日：2002-01-28
申请人： Joseph L. Dallas , Angelique X. Irvin , Robert W. Irvin , Ralph S. Jameson , William A. Mamakos
发明人： Joseph L. Dallas , Angelique X. Irvin , Robert W. Irvin , Ralph S. Jameson , William A. Mamakos
IPC分类号： G02B636
CPC分类号： G02B6/4227 , G02B6/30 , G02B6/3801 , G02B6/4238
摘要： A multi-fiber alignment system is provided for actively aligning optical fibers to an optical waveguide base on alignment status between each optical fiber and a corresponding optical device. Each of the optical fibers is held by bonding agent on a thermal pad from which radiation melts the bonding agent during adjustment of the optical fiber, and the optical fiber is fixed in its position by solidifying the bonding agent when being accurately aligned to a corresponding optical device.
摘要翻译：提供了一种多光纤对准系统，用于基于每个光纤与对应的光学装置之间的对准状态将光纤主动对准光波导基座。每个光纤通过粘合剂保持在热垫上，在热调节期间辐射熔化粘合剂，并且当光纤被精确对准到相应的光学器件时，通过固化粘合剂将光纤固定在其位置上设备。

2. 发明授权

US5033830A Polarization independent optical isolator 失效
标题翻译：偏振独立光隔离器
公开(公告)号：US5033830A
公开(公告)日：1991-07-23
申请号：US417228
申请日：1989-10-04
申请人： Ralph S. Jameson
发明人： Ralph S. Jameson
IPC分类号： G02B27/28 , G02B6/26 , G02B6/42 , G02F1/09
CPC分类号： G02B6/2746 , G02B6/4209 , G02F1/093 , G02F2203/06
摘要： A polarization independent optical isolator is disclosed which uses a single birefringent plate. A pair of stacked reciprocal rotators, a Faraday rotator, and reflector are positioned in tandem adjacent to the birefringent plate. In the forward (transmitting) direction, a lightwave signal exiting an optical fiber is split into a pair of orthogonal rays by the birefringent plate. The orthogonal rays then pass through a first reciprocal rotator and the Faraday rotator. The rotated rays are then redirected by the reflector back through the Faraday rotator. After passing through the second reciprocal rotator, the orthogonal rays re-enter the same birefringent plate where they are recombined and launched in an output fiber. Since a Faraday rotator is a non-reciprocal device, any signal traveling through the isolator in the reverse (isolation) direction will be split on both passes through the birefringent plate such that neither will intercept the input fiber.

3. 发明授权

US06246511B1 Apparatus and method to compensate for optical fiber amplifier gain variation 有权
标题翻译：补偿光纤放大器增益变化的装置和方法
公开(公告)号：US06246511B1
公开(公告)日：2001-06-12
申请号：US09372973
申请日：1999-08-12
申请人： Ralph S. Jameson
发明人： Ralph S. Jameson
IPC分类号： H01S330
CPC分类号： H01S3/06754 , G02B6/29317 , G02B6/29356 , H01S3/10015 , H01S3/10023 , H01S3/1055
摘要： A system is provided for partially or completely offsetting optical fiber amplifier gain spectrum variations due to temperature by setting the optical pump signal leading into the amplifier to a desired wavelength value. Optical fiber amplifiers have gain spectrum variations associated with temperature and gain spectrum variations associated with the optical pump signal wavelength. By controlling the optical pump signal wavelength supplying the amplifier, the optical fiber amplifier gain variations due to temperature can be partially or completely offset, which helps minimize total amplifier spectral gain variations. The invention is applicable to dense wavelength division multiplexing (DWDM) systems.
摘要翻译：提供一种系统，用于通过将通向放大器的光泵浦信号设置为期望的波长值来部分或完全抵消由于温度导致的光纤放大器增益谱变化。光纤放大器具有与光泵浦信号波长相关的温度和增益谱变化相关的增益谱变化。通过控制提供放大器的光泵浦信号波长，由于温度导致的光纤放大器增益变化可以部分或完全抵消，这有助于最小化总放大器频谱增益变化。本发明适用于密集波分复用（DWDM）系统。

4. 依法登记的发明

USH1155H Optical isolator with improved stabiity 失效
公开(公告)号：USH1155H
公开(公告)日：1993-03-02
申请号：US895211
申请日：1992-06-08
申请人： Vincent J. Fratello , Ralph S. Jameson , Steven J. Licht
发明人： Vincent J. Fratello , Ralph S. Jameson , Steven J. Licht
IPC分类号： G02F1/09
CPC分类号： G02F1/093 , G02F2203/04
摘要： An optical isolator is disclosed which comprises a Faraday rotator disposed between a pair of polarization selective elements (e.g., linear polarizers, birefringent wedges, birefringent plates, etc.). Improvement in isolation stability as a function of variations in temperature and/or signal wavelength are achieved in accordance with the teachings of the present invention by utilizing a Faraday device with a rotation .theta. less than the conventional 45.degree.. A linear reduction in .theta., while resulting in a some signal loss, provides a linear increase in both temperature and wavelength stability.

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