公开(公告)号：US06307669B1

公开(公告)日：2001-10-23

申请号：US09417262

申请日：1999-10-12

Applicant: Felton A. Flood ,  Douglas W. Hall

Inventor： Felton A. Flood ,  Douglas W. Hall

IPC: H01S300

CPC classification number: H01S3/067 ,  H01S3/094003 ,  H01S3/1603 ,  H01S3/1608 ,  H01S2302/00 ,  H01S2303/00

Abstract: A method of operating an optical amplifier for improved gain and pump-to-signal conversion efficiency in a long wavelength spectral region (L-band) of the emission spectrum of a rare earth doped gain medium having a known pump absorption band involves the steps of providing an optical signal to the amplifier having a large-signal input power; and providing pumping light to the amplifier having a wavelength that is different from a center wavelength of the known pump absorption band for amplifying the optical signal. Signal gain and improved pump-to-signal conversion efficiency was demonstrated for an erbium L-band signal by detuning the pump between about ±0-30 nm on either side of the pump band center wavelength of 979-980 nm. An optical amplifier employing the described method is also disclosed.

Abstract translation: 在具有已知的泵吸收带的稀土掺杂增益介质的发射光谱的长波长光谱区域（L波段）中操作光放大器以改善增益和泵浦到信号转换效率的方法包括以下步骤： 向具有大信号输入功率的放大器提供光信号; 以及向具有不同于已知泵吸收带的中心波长的波长的放大器提供泵浦光，用于放大光信号。 通过在泵带中心波长979-980 nm的任一侧使约在±0-30nm之间的泵失谐，从而为铒L波段信号证明了信号增益和提高的泵浦到信号转换效率。 还公开了采用所述方法的光放大器。

公开(公告)号：US06441953B1

公开(公告)日：2002-08-27

申请号：US09556355

申请日：2000-04-24

Applicant: Gregory J. Cowle ,  Felton A. Flood ,  Chia Chi Wang ,  Luis A. Zenteno

Inventor： Gregory J. Cowle ,  Felton A. Flood ,  Chia Chi Wang ,  Luis A. Zenteno

IPC: H01S300

CPC classification number: H01S3/06758

Abstract: A multi-stage optical fiber amplifier comprises a first gain stage amplifying and optical signal; a pumping source coupled to the first gain stage, a second gain stage coupled to the first gain to further amplifying the optical signal to a desired output signal power, and a second pumping source coupled to the second gain stage. The second pumping source is preferably an erbium-doped fiber laser and has an operating wavelength between about 1520 nm and about 1620 nm. This amplifier achieves good noise figure and high output powers.

Abstract translation: 多级光纤放大器包括第一增益级放大和光信号; 耦合到第一增益级的泵浦源，耦合到第一增益的第二增益级以进一步将光信号放大到期望的输出信号功率，以及耦合到第二增益级的第二泵浦源。 第二泵浦源优选是掺铒光纤激光器，并且具有在约1520nm和约1620nm之间的工作波长。 该放大器实现了良好的噪声系数和高输出功率。

公开(公告)号：US6134047A

公开(公告)日：2000-10-17

申请号：US55332

申请日：1998-04-06

Applicant: Felton A. Flood ,  David Jacob ,  Mark F. Krol ,  Edward F. Murphy ,  Peter G. Wigley

Inventor： Felton A. Flood ,  David Jacob ,  Mark F. Krol ,  Edward F. Murphy ,  Peter G. Wigley

IPC: H04B10/17 ,  H04B10/20 ,  H04Q11/00 ,  G02B6/28 ,  H01S3/067 ,  H04B10/00

CPC classification number: H04B10/2941 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0018 ,  H04Q2011/0024 ,  H04Q2011/0026 ,  H04Q2011/0075

Abstract: A multichannel fiber optic communication network incorporates multichannel fiber optical amplifiers having different functions but designed to use substantially identical gain flattening filters. This is achieved by designing the amplifiers to have total insertion losses such that their respective internal gains (internal gain=net gain+total insertion loss) are substantially the same, most preferably within 1 dB.

Abstract translation: 多通道光纤通信网络包括具有不同功能的多通道光纤放大器，但被设计为使用基本相同的增益平坦化滤波器。 这通过将放大器设计成具有总插入损耗来实现，使得它们各自的内部增益（内部增益=净增益+总插入损耗）基本相同，最优选在1dB以内。

公开(公告)号：US06542289B2

公开(公告)日：2003-04-01

申请号：US10120321

申请日：2002-04-10

Applicant: Felton A. Flood

Inventor： Felton A. Flood

IPC: H01S300

CPC classification number: H01S3/06754 ,  H01S3/094096 ,  H01S3/10007 ,  H01S2301/04 ,  H01S2302/00

Abstract: A method for controlling the shape and magnitude of the L-band gain spectrum of an erbium doped optical amplifier, in one aspect, involves saturating the amplifier gain with a saturating signal in the L-band. Another aspect of the method involves saturating the amplifier gain by controlling the temperature of the gain medium. By pumping the amplifier in the 980 nm and/or the 1480 nm pump bands, the gain spectra at different inversion levels are adjusted.

公开(公告)号：US06421172B1

公开(公告)日：2002-07-16

申请号：US09472459

申请日：1999-12-27

Applicant: Felton A. Flood ,  Yongqian Liu ,  Richard G. Smart

Inventor： Felton A. Flood ,  Yongqian Liu ,  Richard G. Smart

IPC: H01S300

CPC classification number: H01S3/06758 ,  H01S3/08086

Abstract: The optical amplifier includes a first gain medium having an optical host that contains a rare earth dopant and a first pump that supplies optical energy at a first wavelength into this first gain medium. The first pump operates at a pump wavelength that has a lower inversion saturation than the highest wavelength of absorption of the first gain medium. The optical amplifier further comprises a second gain medium operatively coupled to the first gain medium and a second pump that supplies optical energy into the second gain medium.

Abstract translation: 光放大器包括具有含有稀土掺杂剂的光学主体的第一增益介质和向该第一增益介质提供第一波长的光能的第一泵。 第一泵以具有比第一增益介质的最高吸收波长更低的反相饱和度的泵浦波长工作。 光放大器还包括可操作地耦合到第一增益介质的第二增益介质和向第二增益介质提供光能的第二泵。