公开(公告)号：US20180195905A1

公开(公告)日：2018-07-12

申请号：US15746400

申请日：2016-07-25

Applicant: Finisar Corporation

Inventor： Simon Poole ,  Cibby Pulikkaseril ,  Qing Li ,  Nikhil Cunha ,  Harold Rosenfeldt

IPC: G01J3/433 ,  G01J3/10

CPC classification number: G01J3/433 ,  G01J3/0224 ,  G01J3/10 ,  G01J3/28 ,  G01J3/453 ,  G01J9/04 ,  H04B10/07955 ,  H04B10/07957

Abstract: Described herein is a system and method of controlling an optical heterodyne measurement system (1). The measurement system (1) has a tunable laser (9) for generating a local oscillator signal, an optical input (5) for receiving an input optical signal (7) and a mixing module (13) for mixing the local oscillator signal with the input optical signal to generate an output optical measurement signal. One embodiment provides a method including the steps of: a) receiving an input electrical drive signal for driving the tunable laser (9) to produce a laser output having a spectral linewidth and peak central frequency; b) coupling the input electrical drive signal with an electrical linewidth control signal (54) to selectively broaden the spectral linewidth; and c) during a measurement period, selectively tuning the central frequency of the laser in a stepwise manner across a predetermined frequency spectrum at predefined tuning increments.

公开(公告)号：US09490895B2

公开(公告)日：2016-11-08

申请号：US14483847

申请日：2014-09-11

Applicant: Finisar Corporation

Inventor： Steven James Frisken ,  Cibby Pulikkaseril ,  Simon Poole

IPC: H04B10/079

CPC classification number: H04B10/0795

Abstract: Described herein is an optical channel monitor (1) including a protective housing (3), an input port (5) disposed in the housing (3) and configured for receiving at least one input optical signal (7) including one or more optical channels separated by wavelength. A wavelength configurable laser (9) is located within the housing (3) and is configured to provide an optical reference signal (11) at a first wavelength (λr). The laser (9) is adapted to scan across a range of wavelengths covering the one or more optical channels. An optical mixing module (13) is coupled to the input port (5) and the laser (9) for mixing the input optical signal (7) with the optical reference signal (11) to produce a mixed output signal. A receiver module (15) is configured to receive the mixed output signal and extract signal information indicative of at least the optical power of the at least one input optical signal at the first wavelength (λr).

Abstract translation: 这里描述了一种光通道监视器（1），包括保护壳体（3），设置在壳体（3）中的输入端口（5），并被配置为用于接收至少一个输入光信号（7），该输入光信号包括一个或多个光通道 以波长分隔。 波长可配置激光器（9）位于壳体（3）内并且被配置为提供第一波长（λr）的光学参考信号（11）。 激光器（9）适于扫描覆盖一个或多个光学通道的波长范围。 光混合模块（13）耦合到输入端口（5）和激光器（9），用于将输入光信号（7）与光参考信号（11）混合以产生混合输出信号。 接收器模块（15）被配置为接收混合输出信号并且提取表示至少一个输入光信号的第一波长（λr）的光功率的信号信息。

公开(公告)号：US20150086198A1

公开(公告)日：2015-03-26

申请号：US14483847

申请日：2014-09-11

Applicant: Finisar Corporation

Inventor： Steven James Frisken ,  Cibby Pulikkaseril ,  Simon Poole

IPC: H04B10/079

CPC classification number: H04B10/0795

Abstract: Described herein is an optical channel monitor (1) including a protective housing (3), an input port (5) disposed in the housing (3) and configured for receiving at least one input optical signal (7) including one or more optical channels separated by wavelength. A wavelength configurable laser (9) is located within the housing (3) and is configured to provide an optical reference signal (11) at a first wavelength (λr). The laser (9) is adapted to scan across a range of wavelengths covering the one or more optical channels. An optical mixing module (13) is coupled to the input port (5) and the laser (9) for mixing the input optical signal (7) with the optical reference signal (11) to produce a mixed output signal. A receiver module (15) is configured to receive the mixed output signal and extract signal information indicative of at least the optical power of the at least one input optical signal at the first wavelength (λr).

Abstract translation: 这里描述了一种光通道监视器（1），包括保护壳体（3），设置在壳体（3）中的输入端口（5），并被配置为用于接收至少一个输入光信号（7），该输入光信号包括一个或多个光通道 以波长分隔。 波长可配置激光器（9）位于壳体（3）内并且被配置为提供第一波长（λr）的光学参考信号（11）。 激光器（9）适于扫描覆盖一个或多个光学通道的波长范围。 光混合模块（13）耦合到输入端口（5）和激光器（9），用于将输入光信号（7）与光参考信号（11）混合以产生混合输出信号。 接收器模块（15）被配置为接收混合输出信号并且提取表示至少一个输入光信号的第一波长（λr）的光功率的信号信息。