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1. 发明授权

US5930435A Optical filter device 失效
标题翻译：光滤波器
公开(公告)号：US5930435A
公开(公告)日：1999-07-27
申请号：US737985
申请日：1997-05-01
申请人： Richard I. Laming , Wei-Hung Loh , David N. Payne , Michael N. Zervas
发明人： Richard I. Laming , Wei-Hung Loh , David N. Payne , Michael N. Zervas
IPC分类号： G02B6/28 , G02F1/35 , H01S3/067 , H01S3/098 , H01S5/14 , G02B6/02
CPC分类号： H01S3/06708 , G02F1/3523 , H01S5/146 , G02B2006/2839 , G02F2201/02 , G02F2202/06 , G02F2203/055 , H01S3/06737 , H01S3/0675 , H01S3/06754 , H01S3/08022 , H01S3/08027 , H01S5/141
摘要： Passive, self-adjusting and tracking optical wavelength filters are described. The filters are absorptive and can be of either transmissive or reflective type. The filters comprise an unpumped doped optical waveguide configured so that signals of different wavelength are spatially decoupled to some extent. The self-adjustment of the filter centre wavelength is achieved by the combined effects of the power-dependent saturable absorption, provided by an appropriate dopant, and partial longitudinal hole burning provided by the spatial decoupling of the different wavelengths. External cavity lasers using this type of filter in the external cavity are also described. This external cavity configuration can provide stable single frequency operation of, for example, a semiconductor laser. By using a saturable absorber for the external cavity (e.g. an erbium doped fibre), longitudinal mode-hopping can be suppressed, ensuring single frequency operation.
摘要翻译： PCT No.PCT / GB95 / 01141 Sec。 371日期1997年5月1日 102（e）日期1997年5月1日PCT提交1995年5月19日PCT公布。公开号WO95 / 32451 1995年11月30日，描述了无源自调整和跟踪光波长滤波器。过滤器是吸收性的，并且可以是透射型或反射型。滤波器包括一个未使用的掺杂光波导，其被配置成使得不同波长的信号在一定程度上在空间上解耦。通过由适当的掺杂剂提供的功率依赖的可饱和吸收和通过不同波长的空间去耦提供的部分纵向孔燃烧的组合效应来实现滤波器中心波长的自调节。还描述了在外腔中使用这种类型的滤波器的外腔激光器。该外部空腔配置可以提供例如半导体激光器的稳定的单频操作。通过使用用于外部空腔的可饱和吸收体（例如掺铒光纤），可以抑制纵向跳跃，确保单频操作。

2. 发明授权

US5375010A Optical amplifier 失效
标题翻译：光放大器
公开(公告)号：US5375010A
公开(公告)日：1994-12-20
申请号：US012043
申请日：1993-02-01
申请人： Michael N. Zervas , Richard I. Laming , David N. Payne
发明人： Michael N. Zervas , Richard I. Laming , David N. Payne
IPC分类号： H01S3/00 , H01S3/067 , H01S3/16 , G02B6/00 , H01S3/06 , H01S3/094
CPC分类号： H01S3/06758 , H01S2301/02 , H01S3/0064 , H01S3/1608 , Y10S372/703
摘要： An optical amplifier comprises first (22) and second (24) lengths of erbium-doped fibre connected in series via an isolator 20 which reduces the transmission of backward-travelling ASE from the second length to the first length when pump power in inputted in to the first length.
摘要翻译：光放大器包括通过隔离器20串联连接的第一（22）和第二（24）长度的掺铒光纤，当隔离器20输入的泵浦功率减小了反向运行的ASE从第二长度到第一长度的传输第一个长度。

3. 发明授权

US5260823A Erbium-doped fibre amplifier with shaped spectral gain 失效
标题翻译：具有形状光谱增益的掺铒光纤放大器
公开(公告)号：US5260823A
公开(公告)日：1993-11-09
申请号：US10478
申请日：1993-01-28
申请人： David N. Payne , Richard I. Laming , Paul R. Morkel , Masao Tachibana
发明人： David N. Payne , Richard I. Laming , Paul R. Morkel , Masao Tachibana
IPC分类号： H01S3/063 , H01S3/067 , H01S3/10 , H04B10/17 , H01S3/06 , G02B6/26
CPC分类号： H04B10/2941 , H01S3/10023 , H01S2301/04 , H01S3/0632 , H01S3/0635 , H01S3/0675
摘要： The spectral-gain characteristics of an erbium-doped fibre amplifier have been tailored by incorporating a gain-shaping-filter within the amplifier. The filter is chosen to modify the natural gain spectrum of the amplifier so as to suppress the gain peak and thus flatten the overall spectral-gain profile. Because the amplifier is distributed, it is possible to insert one or more filters along the length of the fibre. It is shown that there are considerable advantages to locating the filter within the length of the amplifier, rather than at the end, which is the more obvious choice. Advantages are that the amplifier pump efficiency is almost unaffected and the output saturation power is similar to that of the unshaped amplifier. In addition, the flat spectral gain provides an amplifier ideally-suited for use at a number of signal wavelengths, as required for wavelength-division multiplexing (WDM). The invention therefore comprises both the concept of filtering to shape the gain response of the amplifier and the recognition that this can be achieved without penalty by careful location of one or more filters along the length of the amplifier.
摘要翻译：掺铒光纤放大器的光谱增益特性已经通过在放大器内并入增益整形滤波器而被定制。选择滤波器来修改放大器的自然增益谱，以抑制增益峰值，从而使整个频谱增益曲线变平。因为放大器是分布式的，所以可以沿着光纤的长度插入一个或多个滤波器。已经表明，将滤波器放置在放大器的长度内而不是结束处具有相当大的优点，这是更明显的选择。优点是放大器泵效率几乎不受影响，输出饱和功率类似于未放大的放大器。另外，平坦频谱增益提供了理想地适用于波分复用（WDM）所需的多个信号波长的放大器。因此，本发明包括滤波以形成放大器的增益响应的概念以及通过沿放大器的长度仔细定位一个或多个滤波器可以实现这一点的识别。

4. 发明授权

US4955025A Fibre-optic lasers and amplifiers 失效
标题翻译：光纤激光器和放大器
公开(公告)号：US4955025A
公开(公告)日：1990-09-04
申请号：US326458
申请日：1989-03-20
申请人： Robert J. Mears , Laurence Reekie , Simon B. Poole , David N. Payne
发明人： Robert J. Mears , Laurence Reekie , Simon B. Poole , David N. Payne
IPC分类号： H01S3/07 , C03B37/018 , G02B6/02 , G02B6/34 , H01S3/06 , H01S3/067 , H01S3/083 , H01S3/091 , H01S3/10 , H01S3/17 , H04B10/02 , H04B10/28
CPC分类号： H01S3/17 , C03B37/018 , C03B37/01807 , G02B6/02 , H01S3/067 , H01S3/083 , C03B2201/34 , C03B2201/40 , G02B6/29359 , G02B6/29395
摘要： An active device (FIG. 1) comprising a length of doped fiber (1) and an end-coupled pump source (11). The fiber (1) is of single-mode geometry and incorporates rare-earth or transition metal dopant ions. These latter are incorporated at a low-level uniform concentration (.ltorsim.900 ppm). The fiber host (1) selected exhibits an inherently ultra low attentuation loss (.ltorsim.40 dB/km) at the emission wavelength. The fibers (1) are generally of long length (e.g. 5 m to 300 m) and may be coiled for compact packaging. The fiber (1) may be formed as part of a Fabry-Perot cavity (1, 7, 9); or, as a ring cavity (FIG. 8) using a doped fiber coupler (29) spliced to form a ring (27). Q-switch and mode-locking devices (19) and gratings (25) may be included as part of the Fabry-Perot cavity to allow pulse-mode operation and/or wavelength tuning, respectively. The fiber (1) may also be utilised as an amplifier.

5. 发明授权

US4787927A Fabrication of optical fibers 失效
标题翻译：光纤制造
公开(公告)号：US4787927A
公开(公告)日：1988-11-29
申请号：US64943
申请日：1987-04-09
申请人： Robert J. Mears , Laurence Reekie , Simon B. Poole , David N. Payne
发明人： Robert J. Mears , Laurence Reekie , Simon B. Poole , David N. Payne
IPC分类号： H01S3/07 , C03B37/018 , G02B6/02 , G02B6/34 , H01S3/06 , H01S3/067 , H01S3/083 , H01S3/091 , H01S3/10 , H01S3/17 , H04B10/02 , H04B10/28 , C03B37/023
CPC分类号： H01S3/17 , C03B37/018 , C03B37/01807 , G02B6/02 , H01S3/067 , H01S3/083 , C03B2201/34 , C03B2201/40 , G02B6/29359 , G02B6/29395
摘要： A method of making a preform for drawing optical fibers includes the steps of depositing a dopant material 3 in a dopant carrier chamber 1, heating the dopant material to cause it to vaporise at a predetermined rate, depositing from a mixture of a source material (GeCl.sub.4, SiO.sub.4, O.sub.2) and said vaporised dopant a mixture of solid components 8 and fusing said solid components to form a doped glass.
摘要翻译： PCT No.PCT / GB86 / 00484 Sec。 371日期1987年4月9日 102（e）日期1987年4月9日PCT申请日1986年8月13日PCT公布。第WO87 / 01110号公报日本1987年2月26日。制造用于拉制光纤的预成型件的方法包括以下步骤：在掺杂剂载体室1中沉积掺杂剂材料3，加热掺杂剂材料以使其以预定速率蒸发，从源材料（GeCl 4，SiO 4，O 2）和所述汽化掺杂剂的混合物是固体组分8的混合物，并将所述固体组分熔合以形成掺杂的玻璃。

6. 发明授权

US4515475A Measurement of refractive index profile 失效
$Measurement of refractive index profile$
标题翻译：折射率分布测量
公开(公告)号：US4515475A
公开(公告)日：1985-05-07
申请号：US308542
申请日：1981-10-01
申请人： David N. Payne , Issei Sasaki , Michael J. Adams
发明人： David N. Payne , Issei Sasaki , Michael J. Adams
IPC分类号： G01M11/02 , G01N21/41 , G01N21/47
CPC分类号： G01N21/412
摘要： A method of sensing the optical deflection function of an approximately cylindrical object, such as an optical fibre preform, comprises illuminating the object with collimated light; focusing the transmitted light so that in the focal plane the distance of the light from the optical axis is linearly proportional to the angle through which light has been deviated by the object; optically modulating the focused light so that a property of the light varies as a function of said distance, and calculating the deflection function from the modulated light. The modulations may be spatial or temporal. The refractive index profile can also be calculated.
摘要翻译： PCT No.PCT / GB81 / 00040 Sec。 371日期：1981年10月1日 102（e）日期1981年10月1日PCT提交1981年3月11日PCT公布。出版物WO81 / 02634 日期：1981年9月17日。一种感测近似圆柱形物体（诸如光纤预制棒）的光学偏转功能的方法包括用准直光照射物体; 聚焦透射光，使得在焦平面中，光从光轴的距离与光被物体偏离的角度成线性比例; 光调制聚焦光，使得光的性质根据所述距离而变化，并从调制光计算偏转函数。调制可能是空间或时间。还可以计算折射率分布。

7. 发明授权

US4787694A Optical fibre polarizer 失效
标题翻译：光纤偏振片
公开(公告)号：US4787694A
公开(公告)日：1988-11-29
申请号：US25945
申请日：1987-03-16
申请人： Roger J. Brambley , David N. Payne
发明人： Roger J. Brambley , David N. Payne
IPC分类号： G02B6/10 , G02B6/34
CPC分类号： G02B6/105
摘要： A frequency selective optical polarizer is formed by pressing a length of single mode polarization maintaining fiber 12 against a ribbed plate 10 in order to generate a distributed strain pattern with a periodicity which causes for a particular optical frequency one of the guided modes to couple into an unguided mode while the other guided mode remains substantially uncoupled.
摘要翻译：频率选择性光学偏振器通过将单模偏振保持光纤12的长度压靠在肋板10上而形成，以便产生具有周期性的分布应变图案，该周期性导致特定光频率的一个引导模式耦合到非导向模式，而另一个引导模式保持基本上未耦合。

8. 发明授权

US4714829A Fibre optic sensing device and method 失效
标题翻译：光纤传感装置及方法
公开(公告)号：US4714829A
公开(公告)日：1987-12-22
申请号：US841019
申请日：1986-03-17
申请人： Arthur H. Hartog , David N. Payne
发明人： Arthur H. Hartog , David N. Payne
IPC分类号： G01D5/353 , G01K11/32 , H01J5/16
CPC分类号： G01D5/35383 , G01K11/32
摘要： A detector comprises an optical radiation source (10) and a length of optic fibre (18) sensitive to local variations in a physical variable. Changes in radiation back-scattered by the fibre are received by a detector (24) which gives an output dependent on local changes in the physical variable.
摘要翻译：检测器包括对物理变量中的局部变化敏感的光辐射源（10）和长度的光纤（18）。光纤后向散射的变化由检测器（24）接收，该检测器（24）给出取决于物理变量的局部变化的输出。

9. 发明授权

US4519704A Measurement of optical refractive index profiles 失效
$Measurement of optical refractive index profiles$
标题翻译：光折射率曲线的测量
公开(公告)号：US4519704A
公开(公告)日：1985-05-28
申请号：US476465
申请日：1983-03-18
申请人： Robert J. Mansfield , David N. Payne , Issei Sasaki
发明人： Robert J. Mansfield , David N. Payne , Issei Sasaki
IPC分类号： G01N21/41
CPC分类号： G01N21/412
摘要： To determine the radial profile of the refractive index of a substantially cylindrical transparent object such as an optical fibre or optical fibre preform, the object is illuminated with a collimated beam of light incident at an angle to the axis of the cylindrical object differing substantially from 90 degrees and measuring the refraction angle at which light leaves a substantially plane endface as a function of the radial position on the endface.
摘要翻译：为了确定基本上圆柱形的透明物体（例如光纤或光纤预制棒）的折射率的径向轮廓，用与圆柱形物体的轴线成一定角度入射的准直光束照射物体，其基本上不同于90° 测量光离开基本平面端面的折射角，作为端面上的径向位置的函数。

10. 发明授权

US4360250A Optical waveguides 失效
标题翻译：光波导
公开(公告)号：US4360250A
公开(公告)日：1982-11-23
申请号：US581472
申请日：1975-05-28
申请人： David N. Payne , William A. Gambling
发明人： David N. Payne , William A. Gambling
IPC分类号： C03B23/047 , C03B23/049 , C03B37/018 , C03C13/04 , G02B6/00 , G02B6/02 , G02B5/172
CPC分类号： C03B23/0493 , C03B23/047 , C03B37/01807 , C03B37/01861 , C03C13/045 , C03C13/046
摘要： An optical waveguide has a silica cladding and a phosphosilicate core. Additional components may be added to improve the match of physical properties between core and cladding. The waveguide is manufactured by passing a mixture of vapors of silicon tetrachloride and phosphorus oxychloride through the interior surface of a glass tube and heating to cause oxidation and simultaneous deposition of silica and phosphorus pentoxide. The interior coated tube is then collapsed to a rod and the rod is drawn into an optical fibre.
摘要翻译：光波导具有二氧化硅包层和磷硅酸盐芯。可以添加附加的组分以改善芯和包层之间的物理性质的匹配。波导通过将四氯化硅和磷酰氯的蒸气混合物通过玻璃管的内表面并加热而引起氧化和同时沉积二氧化硅和五氧化二磷来制造。然后将内部涂覆的管子折叠成棒，并将杆拉入光纤。

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