公开(公告)号：US5524076A

公开(公告)日：1996-06-04

申请号：US450841

申请日：1995-05-25

Applicant: Claude Rolland ,  John C. Cartledge

Inventor： Claude Rolland ,  John C. Cartledge

IPC: G02F1/017 ,  G02F1/225 ,  G02B6/10

CPC classification number: B82Y20/00 ,  G02F1/225 ,  G02F1/01708 ,  G02F1/2257 ,  G02F2201/126 ,  G02F2203/25 ,  G02F2203/255

Abstract: A Mach-Zehnder optical modulator in which the chirp parameter can be varied by adjusting the optical power splitting ratio between the two arms of the interferometer. The modulating voltage is supplied to a single arm or alternatively to both arms in a push-pull configuration. For an appropriate power splitting ratio negative chirp is achieved with approximately equal push-pull modulating drive voltage. This results in optimum distance and bit rate characteristics with low drive power.

Abstract translation: 通过调整干涉仪的两个臂之间的光功率分配比，可以改变啁啾参数的马赫 - 曾德尔光调制器。 调制电压以推挽配置提供给单个臂或替代双臂。 对于适当的功率分配比，通过大致相等的推挽调制驱动电压实现负啁啾。 这导致了具有低驱动功率的最佳距离和比特率特性。

公开(公告)号：US08867930B2

公开(公告)日：2014-10-21

申请号：US13282779

申请日：2011-10-27

Applicant: David J. Krause ,  John C. Cartledge

Inventor： David J. Krause ,  John C. Cartledge

IPC: H04B10/06 ,  H04B17/00 ,  H04L1/20

CPC classification number: H04B17/0037 ,  H04B17/104 ,  H04L1/205 ,  H04L1/206

Abstract: Systems and methods for determining the envelope of a modulated signal using high bandwidth and low bandwidth samples of a hybrid signal. The hybrid signal is obtained by mixing the modulated signal with its carrier signal. The systems and methods of the present disclosure may be suitable for equivalent-time or real-time oscilloscopes.

Abstract translation: 使用混合信号的高带宽和低带宽采样来确定调制信号的包络的系统和方法。 混合信号通过将调制信号与其载波信号混合而获得。 本公开的系统和方法可适用于等效时间或实时示波器。

公开(公告)号：US20120140809A1

公开(公告)日：2012-06-07

申请号：US13282779

申请日：2011-10-27

Applicant: David J. KRAUSE ,  John C. CARTLEDGE

Inventor： David J. KRAUSE ,  John C. CARTLEDGE

IPC: H04B17/00

CPC classification number: H04B17/0037 ,  H04B17/104 ,  H04L1/205 ,  H04L1/206

Abstract: Systems and methods for determining the envelope of a modulated signal using high bandwidth and low bandwidth samples of a hybrid signal. The hybrid signal is obtained by mixing the modulated signal with its carrier signal. The systems and methods of the present disclosure may be suitable for equivalent-time or real-time oscilloscopes.

Abstract translation: 使用混合信号的高带宽和低带宽采样来确定调制信号的包络的系统和方法。 混合信号通过将调制信号与其载波信号混合而获得。 本公开的系统和方法可适用于等效时间或实时示波器。

公开(公告)号：US07239396B2

公开(公告)日：2007-07-03

申请号：US10942787

申请日：2004-09-17

Applicant: David J. Krause ,  John C. Cartledge

Inventor： David J. Krause ,  John C. Cartledge

IPC: G01B9/02

CPC classification number: G01D5/35303 ,  G01M11/33

Abstract: This invention relates to a method and apparatus for measuring the phase change of an output optical signal from a device. In one embodiment an input optical signal is split into first and second optical signals, and the first optical signal is passed through the device while applying an external stimulus to the device, to produce an output optical signal having a phase shift. The carrier frequency of the second optical signal is changed, and the output optical signal and the changed second optical signal are then combined. The combined signal is detected in accordance with the external stimulus applied to the device, and the phase change of the output signal of the device is measured as a function of the external stimulus applied to the device.

Abstract translation: 本发明涉及一种用于测量来自装置的输出光信号的相位变化的方法和装置。 在一个实施例中，输入光信号被分成第一和第二光信号，并且第一光信号在对器件施加外部刺激时通过器件，以产生具有相移的输出光信号。 改变第二光信号的载波频率，然后组合输出光信号和改变的第二光信号。 根据施加到器件的外部刺激来检测组合信号，并且根据施加到器件的外部刺激来测量器件的输出信号的相位变化。