专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07468996B2 External cavity laser tuning element dither servo control 有权
公开(公告)号：US07468996B2
公开(公告)日：2008-12-23
申请号：US11647783
申请日：2006-12-29
申请人： Andrew Daiber , Anand S. Ramalingam , Jiann-Chang Lo , Douglas A. Sprock , William B. Chapman
发明人： Andrew Daiber , Anand S. Ramalingam , Jiann-Chang Lo , Douglas A. Sprock , William B. Chapman
IPC分类号： H01S3/10
CPC分类号： H01S5/141 , H01S3/1062 , H01S5/02248 , H01S5/02415 , H01S5/02438 , H01S5/0617 , H01S5/06804 , H01S5/0687
摘要： According to embodiments of the present invention, an external cavity laser includes one or more tuning elements. At least one modulated voltage signal or dither is used to lock the transmission peak of the two tuning elements to each other. The wavelength of the laser also may lock onto the lock transmission peaks. In embodiments in which two dither signals are used, the dither signals may be orthogonal to or independent of each other. The two dither signals may produce two control signals to align the transmission peak of one filter to the transmission peak of another filter and the lasing mode of the laser to the aligned filters.

2. 发明申请

US20080159340A1 External cavity laser tuning element dither servo control 有权
标题翻译：外腔激光调谐元件抖动伺服控制
公开(公告)号：US20080159340A1
公开(公告)日：2008-07-03
申请号：US11647783
申请日：2006-12-29
申请人： Andrew Daiber , Anand S. Ramalingam , Jiann-Chang Lo , Douglas A. Sprock , William B. Chapman
发明人： Andrew Daiber , Anand S. Ramalingam , Jiann-Chang Lo , Douglas A. Sprock , William B. Chapman
IPC分类号： H01S3/106
CPC分类号： H01S5/141 , H01S3/1062 , H01S5/02248 , H01S5/02415 , H01S5/02438 , H01S5/0617 , H01S5/06804 , H01S5/0687
摘要： According to embodiments of the present invention, an external cavity laser includes one or more tuning elements. At least one modulated voltage signal or dither is used to lock the transmission peak of the two tuning elements to each other. The wavelength of the laser also may lock onto the lock transmission peaks. In embodiments in which two dither signals are used, the dither signals may be orthogonal to or independent of each other. The two dither signals may produce two control signals to align the transmission peak of one filter to the transmission peak of another filter and the lasing mode of the laser to the aligned filters.
摘要翻译：根据本发明的实施例，外腔激光器包括一个或多个调谐元件。使用至少一个调制电压信号或抖动来将两个调谐元件的传输峰值彼此锁定。激光器的波长也可能锁定在锁定传输峰值上。在使用两个抖动信号的实施例中，抖动信号可以彼此正交或彼此独立。两个抖动信号可以产生两个控制信号，以将一个滤波器的传输峰值与另一个滤波器的传输峰值对齐，并将激光器的激光模式对齐到对准的滤波器。

3. 发明授权

US07218652B2 External cavity laser method and apparatus with orthogonal tuning of laser wavelength and cavity optical path length 有权
标题翻译：激光波长和腔光路长度正交调谐的外腔激光方法和装置
公开(公告)号：US07218652B2
公开(公告)日：2007-05-15
申请号：US11036526
申请日：2005-01-13
申请人： William B. Chapman , Alejandro D. Farinas , Andrew Daiber , Hua Li
发明人： William B. Chapman , Alejandro D. Farinas , Andrew Daiber , Hua Li
IPC分类号： H01S3/10 , H01S3/098
CPC分类号： H01S5/141 , H01S3/105 , H01S3/1055 , H01S3/1062 , H01S5/0222 , H01S5/0617 , H01S5/0687
摘要： An external cavity laser apparatus and method wherein wavelength or channel selection is carried independently from adjustment of external cavity optical path length. The apparatus comprises a wavelength or channel selector tuner and an external cavity tuner, wherein the wavelength tuner is uncoupled from the external cavity tuner. The tuning mechanisms for wavelength selection and cavity optical path length are configured to operate independently or orthogonally with respect to each other. The wavelength tuner may operate according to a first, channel selection signal, while the external cavity tuner operates according to a second, external cavity adjustment signal. The wavelength tuner and external cavity tuner may operate under the control of the same, or of separate controllers. The channel selection signal may be derived from a look-up table of adjustment parameter data accessed by a controller, and the external cavity adjustment signal may be derived from an error signal from a detector configured to measure external cavity loss.
摘要翻译：一种外腔激光装置和方法，其中波长或通道选择独立于外腔光程长度的调节进行。该装置包括波长或通道选择器调谐器和外部空腔调谐器，其中波长调谐器与外部空腔调谐器分离。用于波长选择和腔光路长度的调谐机构被配置为相对于彼此独立地或正交地操作。波长调谐器可以根据第一信道选择信号进行操作，而外腔调谐器根据第二外部空腔调节信号进行操作。波长调谐器和外腔调谐器可以在相同或独立控制器的控制下操作。信道选择信号可以从由控制器访问的调整参数数据的查找表导出，并且可以从构造成测量外部空腔损耗的检测器的误差信号导出外部空腔调节信号。

4. 发明授权

US07120176B2 Wavelength reference apparatus and method 有权
公开(公告)号：US07120176B2
公开(公告)日：2006-10-10
申请号：US10173514
申请日：2002-06-15
申请人： Mark McDonald , Mark Rice , Andrew Daiber , William B. Chapman
发明人： Mark McDonald , Mark Rice , Andrew Daiber , William B. Chapman
IPC分类号： H01S3/13
CPC分类号： G02B5/281 , G02B6/29358 , G02B6/4215 , H01S5/141
摘要： Apparatus and methods usable for wavelength references and measurement of wavelength of a light beam. The apparatus comprise at least two wavelength reference or filter elements positioned in a light beam, each wavelength reference element having a different free spectral range and operable to define a joint free spectral range, and a detector positioned in the beam after the wavelength reference elements. The joint free spectral range provided by the multiple wavelength reference elements results in a joint transmission peak that is centered at a unique wavelength, and maximum optical power detectable from the beam by the detector occurs at the center wavelength of the joint transmission peak.

5. 发明授权

US06704332B2 Tunable external cavity laser 有权
标题翻译：可调外腔激光器
公开(公告)号：US06704332B2
公开(公告)日：2004-03-09
申请号：US10099730
申请日：2002-03-15
申请人： William B. Chapman , Alejandro Farinas , Carter Hand , Hua Li , Andrew Daiber , Nadim Maluf
发明人： William B. Chapman , Alejandro Farinas , Carter Hand , Hua Li , Andrew Daiber , Nadim Maluf
IPC分类号： H01S310
CPC分类号： H01S5/141 , H01S3/105 , H01S3/1055 , H01S3/1062 , H01S5/0222 , H01S5/0617 , H01S5/0687
摘要： External cavity lasers apparatus and methods that allow fast tuning, high wavelength stability, low cavity losses, and form factors that are comparable to solid state, fixed wavelength lasers. The apparatus comprise a gain medium emitting a light beam, a tunable wavelength selection element positioned in the light beam and configured feed back light of a selected wavelength to the gain medium, and a microelectromechanical systems (MEMS) actuator element operatively coupled to the tunable wavelength selection element. The MEMS actuator element may be configured to actuate the tunable wavelength selection element according to a first degree of freedom to select the wavelength of the feedback to the gain medium, and to actuate the actuate the tunable wavelength selection element according to a second degree of freedom to provide phase control of the feedback. The MEMS actuator element and tunable wavelength selection element may additionally be configured such that actuation of the tunable wavelength selection element with respect to a third degree of freedom provides a selectable level of attenuation of the feedback to the gain medium.
摘要翻译：允许快速调谐，高波长稳定性，低腔损耗和与固态固定波长激光器相当的形状因子的外腔激光器装置和方法。该装置包括发射光束的增益介质，位于光束中的可调谐波长选择元件以及将所选波长的反射光配置到增益介质，以及可操作地耦合到可调波长的微机电系统（MEMS）致动器元件选择元素。 MEMS致动器元件可以被配置为根据第一自由度来激励可调波长选择元件，以便将第一自由度选择到增益介质的反馈波长，并且致动根据第二自由度激活可调波长选择元件提供反馈的相位控制。 MEMS致动器元件和可调谐波长选择元件可以另外被配置为使得相对于第三自由度的可调谐波长选择元件的致动提供反馈到增益介质的可选择的衰减水平。

6. 发明授权

US06901088B2 External cavity laser apparatus with orthogonal tuning of laser wavelength and cavity optical pathlength 有权
标题翻译：具有激光波长和腔光程长度正交调谐的外腔激光装置
公开(公告)号：US06901088B2
公开(公告)日：2005-05-31
申请号：US09900373
申请日：2001-07-06
申请人： Hua Li , William B. Chapman , Andrew Daiber , Alejandro D. Farinas
发明人： Hua Li , William B. Chapman , Andrew Daiber , Alejandro D. Farinas
IPC分类号： G02B26/06 , G02F1/03 , G02F1/13 , H01S3/106 , H01S5/022 , H01S5/06 , H01S5/0687 , H01S5/14 , H01S3/10 , H01S3/098
CPC分类号： H01S5/141 , H01S3/105 , H01S3/1055 , H01S3/1062 , H01S5/0222 , H01S5/0617 , H01S5/0687
摘要： An external cavity laser apparatus and method wherein wavelength or channel selection is carried independently from adjustment of external cavity optical path length. The apparatus comprises a wavelength or channel selector tuner and an external cavity tuner, wherein the wavelength tuner is uncoupled from the external cavity tuner. The tuning mechanisms for wavelength selection and cavity optical path length are configured to operate independently or orthogonally with respect to each other. The wavelength tuner may operate according to a first, channel selection signal, while the external cavity tuner operates according to a second, external cavity adjustment signal. The wavelength tuner and external cavity tuner may operate under the control of the same, or of separate controllers. The channel selection signal may be derived from a look-up table of adjustment parameter data accessed by a controller, and the external cavity adjustment signal may be derived from an error signal from a detector configured to measure external cavity loss.
摘要翻译：一种外腔激光装置和方法，其中波长或通道选择独立于外腔光程长度的调节进行。该装置包括波长或通道选择器调谐器和外部空腔调谐器，其中波长调谐器与外部空腔调谐器分离。用于波长选择和腔光路长度的调谐机构被配置为相对于彼此独立地或正交地操作。波长调谐器可以根据第一信道选择信号进行操作，而外腔调谐器根据第二外部空腔调节信号进行操作。波长调谐器和外腔调谐器可以在相同或独立控制器的控制下操作。信道选择信号可以从由控制器访问的调整参数数据的查找表导出，并且可以从构造成测量外部空腔损耗的检测器的误差信号导出外部空腔调节信号。

7. 发明授权

US06804278B2 Evaluation and adjustment of laser losses according to voltage across gain medium 有权
标题翻译：根据增益介质上的电压对激光损耗进行评估和调整
公开(公告)号：US06804278B2
公开(公告)日：2004-10-12
申请号：US09900426
申请日：2001-07-06
申请人： Andrew Daiber , Hua Li , William B. Chapman , Mark McDonald
发明人： Andrew Daiber , Hua Li , William B. Chapman , Mark McDonald
IPC分类号： H01S300
CPC分类号： H01S5/06808 , H01S5/141
摘要： Systems and methods for probing or evaluating optical loss characteristics associated with lasers by monitoring voltage across a laser gain medium, and a laser and method of laser operation wherein intra-cavity losses are determined by monitoring voltage across a gain medium and wherein the cavity loss profile is adjusted according to the voltage across the gain medium.
摘要翻译：用于通过监测激光增益介质上的电压来探测或评估与激光相关的光损耗特性的系统和方法，以及激光器和激光操作的方法，其中通过监测增益介质上的电压来确定腔内损耗，并且其中腔损耗曲线根据增益介质的电压进行调整。

8. 发明授权

US06853654B2 Tunable external cavity laser 有权
标题翻译：可调外腔激光器
公开(公告)号：US06853654B2
公开(公告)日：2005-02-08
申请号：US10099649
申请日：2002-03-15
申请人： Mark E. McDonald , Andrew Daiber , William B. Chapman , Nadim Maluf
发明人： Mark E. McDonald , Andrew Daiber , William B. Chapman , Nadim Maluf
IPC分类号： G02B5/28 , G02B6/34 , G02B7/00 , G02B26/00 , H01S5/022 , H01S5/0687 , H01S5/14 , H04J14/02 , H01S3/98
CPC分类号： G02B5/284 , G02B5/281 , G02B26/001 , G02B26/06 , H01S3/1062 , H01S5/02248 , H01S5/0687 , H01S5/141 , H04J14/02
摘要： Apparatus and methods that utilize tunable elements to provide for selective wavelength tuning of a light beam. The apparatus comprises a first tunable wavelength selection element having a first adjustable free spectral range, a second tunable wavelength selection element having a second adjustable free spectral range, with the first and second tunable wavelength selection elements configured to define a tunable joint transmission peak. The first and second tunable wavelength selection elements respectively define first and second pluralities of tunable transmission peaks, wherein respective ones of each of the first and second plurality of transmission peaks are aligned to obtain a joint transmission peak that may be adjusted by tuning the wavelength selection elements. The free spectral ranges of the wavelength selection elements are configured to enable a Vernier tuning effect.
摘要翻译：利用可调元件提供光束的选择性波长调谐的装置和方法。该装置包括具有第一可调节自由光谱范围的第一可调谐波长选择元件，具有第二可调自由光谱范围的第二可调波长选择元件，第一和第二可调波长选择元件被配置为限定可调谐联合透射峰。第一和第二可调波长选择元件分别限定第一和第二多个可调谐透射峰值，其中第一和第二多个透射峰值中的每一个中的相应的一个被对准以获得可以通过调谐波长选择来调节的联合透射峰值元素。波长选择元件的自由光谱范围被配置为实现游标调谐效果。

9. 发明授权

US06661814B1 Method and apparatus for suppressing stimulated brillouin scattering in fiber links 有权
标题翻译：用于抑制光纤链路中受激布里渊散射的方法和装置
公开(公告)号：US06661814B1
公开(公告)日：2003-12-09
申请号：US10335628
申请日：2002-12-31
申请人： William B. Chapman , Andrew Daiber , Hua Li , Mark McDonald
发明人： William B. Chapman , Andrew Daiber , Hua Li , Mark McDonald
IPC分类号： H01S330
CPC分类号： H04B10/2537 , H01S5/0612 , H01S5/0617 , H01S5/06226 , H01S5/0687 , H01S5/14 , H01S5/141 , H04B10/504
摘要： Method and apparatus for producing a laser output having stimulated Brillouin scattering (SBS) suppression characteristics. An excitation signal is provided to an optical path length adjustment element in an external cavity laser to modulate the optical path length of the cavity. This produces a laser output having a wavelength modulation frequency and line width that are a function of the frequency and amplitude of the excitation signal. Under appropriate modulation frequency and line width combinations, the laser output comprises an optical signal with SBS suppression characteristics, thus enabling a higher power signal to be launched into a fiber link since the SBS suppression characteristics raise the SBS threshold of the link. The optical path length modulation also produces an intensity (amplitude) modulation in the laser output. A detector is employed to produce a feedback signal indicative of the intensity modulation that is used for tuning the laser in accordance with a wavelength locking servo loop.
摘要翻译：用于产生具有受激布里渊散射（SBS）抑制特性的激光输出的方法和装置。激励信号被提供给外腔激光器中的光路长度调节元件，以调制空腔的光程长度。这产生具有作为激励信号的频率和幅度的函数的波长调制频率和线宽度的激光输出。在适当的调制频率和线宽组合下，激光输出包括具有SBS抑制特性的光信号，因此由于SBS抑制特性提高了链路的SBS阈值，因此能够将更高的功率信号发送到光纤链路中。光路长度调制也产生激光输出中的强度（幅度）调制。使用检测器产生指示根据波长锁定伺服环路来调谐激光器的强度调制的反馈信号。

10. 发明授权

US06282215B1 Continuously-tunable external cavity laser 失效
标题翻译：连续可调外腔激光器
公开(公告)号：US06282215B1
公开(公告)日：2001-08-28
申请号：US09418950
申请日：1999-10-15
申请人： Paul Zorabedian , William B. Chapman , Michael Y. Jenq
发明人： Paul Zorabedian , William B. Chapman , Michael Y. Jenq
IPC分类号： H01S310
CPC分类号： H01S5/141 , H01S3/1062 , H01S5/02248 , H01S5/0617 , H01S5/0622 , H01S5/0687 , H01S5/4087
摘要： The present invention provides a continuously-tunable external cavity laser (ECL) with a compact form factor and precise tuning. A novel interference filter which may be used to tune the ECL provides an absence of mode-hopping and reduced feedback from both spurious interference and reflections in the external cavity. A novel tuning mechanism is disclosed which provides for mechanical FM tuning of a wide range ECL tuning elements such as: an interference filter, a diffraction element, and a retroreflector. A novel feedback circuit is disclosed which provides closed loop feedback for selecting output wavelength in a laser.
摘要翻译：本发明提供具有紧凑形状因数和精确调谐的连续可调谐外腔激光器（ECL）。可用于调谐ECL的新型干涉滤波器提供了来自外部空腔中的伪干扰和反射的跳频和减少的反馈。公开了一种新颖的调谐机构，其提供宽范围ECL调谐元件的机械FM调谐，例如：干涉滤光器，衍射元件和后向反射器。公开了一种新颖的反馈电路，其提供用于选择激光器中的输出波长的闭环反馈。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式