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1. 发明申请

US20050225825A1 Frequency locker 有权
标题翻译：频率储物柜
公开(公告)号：US20050225825A1
公开(公告)日：2005-10-13
申请号：US10512702
申请日：2003-04-25
申请人： James Fraser , Stephen Pope , Colin Edge , Steven Borley , Lisa Daykin , Kevin Mullaney
发明人： James Fraser , Stephen Pope , Colin Edge , Steven Borley , Lisa Daykin , Kevin Mullaney
IPC分类号： H01S5/0687 , H01S3/131 , H01S5/12 , H01S5/125 , G02F1/01 , G02B26/00
CPC分类号： H01S5/0687 , H01S5/0612 , H01S5/0617
摘要： A method and assembly for frequency stabilisation of an optical signal especially from a laser, the assembly (11) comprising beam splitter (15), a passive frequency discriminator (16), and a pair of photodiodes (17 & 18). The beam splitter (15) in use receives a collimated optical beam (B) and diverts a sample beam (B1) which is directed towards the discriminator (16) which transmits a portion (B2) of said sample beam to one of the photodiodes (17) and reflects a second portion (B3) of said sample beam to the other photodiode (18). A control signal (S3) is derived from the respective intensities of the transmitted and reflected portions of the sample beam, and utilised to operate the electronic control to adjust the frequency of the laser output signal, if required, to maintain a specified frequency.
摘要翻译：一种用于特别是来自激光器的光学信号的频率稳定的方法和组件，包括分束器（15）的组件（11），无源鉴频器（16）和一对光电二极管（17和18）。使用的分束器（15）接收准直光束（B）并且转向被引导到鉴别器（16）的样本光束（B 1 SUB），该鉴别器（16）透射一部分（B < 将所述样品光束的2π（2π）放大到所述光电二极管（17）中的一个，并将所述样品光束的第二部分（B 3/3）反射到另一个光电二极管（18）。根据样品光束的透射和反射部分的各自强度导出控制信号（S 3/3），并且如果需要，则利用该电子控制来调节激光输出信号的频率，保持指定的频率。

2. 发明授权

US07161725B2 Frequency locker 有权
标题翻译：频率储物柜
公开(公告)号：US07161725B2
公开(公告)日：2007-01-09
申请号：US10512702
申请日：2003-04-25
申请人： James Fraser , Stephen Pope , Colin Edge , Steven Borley , Lisa Daykin , Kevin Mullaney
发明人： James Fraser , Stephen Pope , Colin Edge , Steven Borley , Lisa Daykin , Kevin Mullaney
IPC分类号： G02B26/00 , G02B27/10 , G02B27/30 , H01S3/10 , H04J14/02
CPC分类号： H01S5/0687 , H01S5/0612 , H01S5/0617
摘要： A method and assembly for frequency stabilization of an optical signal especially from a laser, the assembly (11) comprising beam splitter (15), a passive frequency discriminator (16), and a pair of photodiodes (17 & 18). The beam splitter (15) in use receives a collimated optical beam (B) and diverts a sample beam (B1) which is directed towards the discriminator (16) which transmits a portion (B2) of said sample beam to one of the photodiodes (17) and reflects a second portion (B3) of said sample beam to the other photodiode (18). A control signal (S3) is derived from the respective intensities of the transmitted and reflected portions of the sample beam, and utilized to operate the electronic control to adjust the frequency of the laser output signal, if required, to maintain a specified frequency.
摘要翻译：一种用于特别是来自激光器的光学信号的频率稳定的方法和组件，包括分束器（15）的组件（11），无源鉴频器（16）和一对光电二极管（17和18）。使用的分束器（15）接收准直光束（B）并且转向被引导到鉴别器（16）的样本光束（B 1 SUB），该鉴别器（16）透射一部分（B < 将所述样品光束的2π（2π）放大到所述光电二极管（17）中的一个，并将所述样品光束的第二部分（B 3/3）反射到另一个光电二极管（18）。根据样品光束的透射和反射部分的各自强度导出控制信号（S 3/3），并且如果需要，则利用该电子控制来调节激光输出信号的频率，保持指定的频率。

3. 发明申请

US20060039420A1 Control for a tunable laser 有权
标题翻译：可调激光器的控制
公开(公告)号：US20060039420A1
公开(公告)日：2006-02-23
申请号：US10506001
申请日：2003-02-28
申请人： Steven Borley , Andrew Carter
发明人： Steven Borley , Andrew Carter
IPC分类号： H01S3/10
CPC分类号： H01S5/06256 , H01S5/0425 , H01S5/1206 , H01S5/1215 , H01S5/1218
摘要： A control (20) and a method of controlling a tunable laser having a gain section (4), a phase change section (5) and a segmented Bragg grating reflector section (6) comprising a series of grating units (9-17) each of a different pitch, and an electrode (9a-17a) associated with each grating so that an electrical current is applicable to each individual grating. The control (20) includes a plurality of digitally controlled sources (31, 32) of electrical current which are each connected to switch means (33 or 35, 36) operable to independently connect each of said sources (31, 32) to a respective electrode (e.g. 11a or 12a) associated with a grating (e.g. 11 or 12) which is one of a subset of consecutive gratings (e.g. 11 & 12) selected from said series of grating units (9-17).
摘要翻译：一种控制（20）和一种控制具有增益部分（4），相变部分（5）和分段布拉格光栅反射器部分（6）的可调谐激光器的方法，每个部分包括一系列光栅单元（9-17）以及与每个光栅相关联的电极（9a-17a），使得电流可应用于每个单独的光栅。控制器（20）包括多个数字控制的电流源（31,32），每个电流源均连接到可操作以将每个所述源（31,32）独立地连接到相应的开关装置（33,35,36）与从所述系列光栅单元（9-17）中选择的连续光栅（例如11和12）的子集中的光栅（例如11或12）相关联的电极（例如11a或12a）。

4. 发明申请

US20070131847A1 Optical detector 审中-公开
标题翻译：光学探测器
公开(公告)号：US20070131847A1
公开(公告)日：2007-06-14
申请号：US10581904
申请日：2005-10-21
申请人： Jianguo Yao , David Spokes , Alistair Frier , Steven Borley
发明人： Jianguo Yao , David Spokes , Alistair Frier , Steven Borley
IPC分类号： H01J40/14 , G01J1/44 , H03F3/08
CPC分类号： H04B10/07 , G01J1/44 , H03F3/08 , H04B10/674
摘要： An optical detector including an avalanche photodiode (APD) and protection circuitry for protecting the APD from excessive power dissipation therewithin, wherein the protection circuitry includes a switching element connected in parallel with the APD, which switching element is switched from a high resistance state to a low resistance state if the level of current through the APD exceeds a predetermined level, and wherein switching back of the switching element to the high resistance state is dependent on a reset signal from a controller. An optical detector including an avalanche photodiode (APD), and protection circuitry for protecting the APD from excessive power dissipation therewithin by switching the APD to a relatively low voltage power supply if the level of current through the APD exceeds a predetermined level, and wherein switching back of the APD to a higher voltage power supply is dependent on a reset signal from a controller.
摘要翻译：一种光学检测器，包括雪崩光电二极管（APD）和保护电路，用于保护APD免于其中的功率耗散，其中保护电路包括与APD并联连接的开关元件，该开关元件从高电阻状态切换到如果通过APD的电流的电平超过预定电平，并且其中将开关元件切换回高电阻状态的低电阻状态取决于来自控制器的复位信号。一种包括雪崩光电二极管（APD）的光检测器，以及用于通过如果通过APD的电流水平超过预定电平将APD切换到相对低电压电源，则保护APD免受过度功率耗散的保护电路，并且其中切换 APD的背面到更高的电压电源取决于来自控制器的复位信号。

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