公开(公告)号：EP0543160A1

公开(公告)日：1993-05-26

申请号：EP92117933.9

申请日：1992-10-20

Applicant: HEWLETT-PACKARD COMPANY

Inventor： Stimpel, James Roy ,  Azary, Zoltan D. ,  Wildnauer, Kenneth Richards ,  Warwick, Steven David

IPC: G01J3/28

CPC classification number: G01J3/2889 ,  G01J3/28 ,  G01J3/30 ,  G01J2003/062 ,  G01J2003/283 ,  G01J2003/2893

Abstract: An optical spectrum analyzer (FIG. 2) is provided with a user selectable sensitivity (160). Required operating parameters are set in response to user selection of sensitivity (162) to permit measurement of an input light beam (12) at the selected sensitivity. Setting the required parameters includes setting a required gain of a video channel (48, 90, 92, 94, 96) to permit measurement of a specified maximum input signal and to provide the selected sensitivity, setting a required video bandwidth of the video channel (48, 90, 92, 94, 96) to provide the selected sensitivity at the required gain of the video channel (48, 90, 92, 94, 96) and setting a sweep rate to provide the selected sensitivity at the required video bandwidth. When the normal bandwidth of the video channel (48, 90, 92, 94, 96) is not adequate to provide the selected sensitivity, the electrical signal is passed through a digital filter having a filter coefficient (FILTER COEFFICIENT) set to provide the required video bandwidth. A peak detector (90) is incorporated in the video channel (48, 90, 92, 94, 96) to accurately measure signal amplitudes in a fast scanning condition.

Abstract translation: 光谱分析仪（图2）具有用户可选择的灵敏度（160）。 响应于用户选择灵敏度（162）来设置所需的操作参数，以允许以所选灵敏度测量输入光束（12）。 设置所需的参数包括设置视频通道（48,90,92,94,96）的所需增益，以允许测量指定的最大输入信号并提供所选择的灵敏度，设置视频通道的所需视频带宽（ 以提供视频通道（48,90,92,94,96）所需增益的所选灵敏度，并设置扫描速率以在所需视频带宽上提供所选择的灵敏度。 当视频通道（48,90,92,94,96）的正常带宽不足以提供所选择的灵敏度时，电信号通过设置为提供所需的滤波器系数（FILTER COEFFICIENT）的数字滤波器 视频带宽。 峰值检测器（90）被并入视频通道（48,90,92,94,96）中以在快速扫描条件下精确地测量信号幅度。

公开(公告)号：EP0647837A1

公开(公告)日：1995-04-12

申请号：EP94119858.2

申请日：1992-10-20

Applicant: HEWLETT-PACKARD COMPANY

Inventor： Stimpel, James Roy ,  Azary, Zoltan D. ,  Wildnauer, Kenneth Richards ,  Warwick, Steven David

IPC: G01J3/28

CPC classification number: G01J3/2889 ,  G01J3/28 ,  G01J3/30 ,  G01J2003/062 ,  G01J2003/283 ,  G01J2003/2893

Abstract: An optical spectrum analyzer (FIG. 2) is provided with a user selectable sensitivity (160). Required operating parameters (172, 174, 176) are set in response to user selection of sensitivity (162) to permit measurement of an input light beam (12) at the selected sensitivity (160). Setting the required parameters (172, 174, 176) includes setting a required gain (172) of a video channel (48, 90, 92, 94, 96) to permit measurement of a specified maximum input signal and to provide the selected sensitivity (160), setting a required video bandwidth (174) of the video channel (48, 90, 92, 94, 96) to provide the selected sensitivity (160) at the required gain (172) of the video channel (48, 90, 92, 94, 96) and setting a sweep rate (176) to provide the selected sensitivity (160) at the required video bandwidth (174). When the normal bandwidth of the video channel (48, 90, 92, 94, 96) is not adequate to provide the selected sensitivity (160), the electrical signal is passed through a digital filter (100) having a filter coefficient (FILTER COEFFICIENT) set to provide the required video bandwidth (174). A peak detector (90) is incorporated in the video channel (48, 90, 92, 94, 96) to accurately measure signal amplitudes in a fast scanning condition.

Abstract translation: 光谱分析仪（图2）具有用户可选择的灵敏度（160）。 所需的操作参数（172,174,176）响应用户灵敏度选择（162）设置，以允许以所选灵敏度（160）测量输入光束（12）。 设置所需参数（172,174,176）包括设置视频通道（48,90,92,94,96）的所需增益（172）以允许测量指定的最大输入信号并提供所选择的灵敏度（ 160），设置所述视频通道（48,90,92,94,96）的所需视频带宽（174）以将所选择的灵敏度（160）提供在所述视频通道（48,90,94,96,96）的所需增益（172） （176），并且设置扫描速率（176）以在所需的视频带宽（174）提供所选择的灵敏度（160）。 当视频通道（48,90,92,94,96）的正常带宽不足以提供所选择的灵敏度（160）时，电信号通过具有滤波器系数（FILTER COEFFICIENT）的数字滤波器（100） ）设置为提供所需的视频带宽（174）。 峰值检测器（90）被并入视频通道（48,90,92,94,96）中以在快速扫描条件下精确地测量信号幅度。

公开(公告)号：EP0647837B1

公开(公告)日：1998-05-20

申请号：EP94119858.2

申请日：1992-10-20

Applicant: HEWLETT-PACKARD COMPANY

Inventor： Stimpel, James Roy ,  Azary, Zoltan D. ,  Wildnauer, Kenneth Richards ,  Warwick, Steven David

IPC: G01J3/28

CPC classification number: G01J3/2889 ,  G01J3/28 ,  G01J3/30 ,  G01J2003/062 ,  G01J2003/283 ,  G01J2003/2893

公开(公告)号：EP0543160B1

公开(公告)日：1996-02-07

申请号：EP92117933.9

申请日：1992-10-20

Applicant: HEWLETT-PACKARD COMPANY

Inventor： Stimpel, James Roy ,  Azary, Zoltan D. ,  Wildnauer, Kenneth Richards ,  Warwick, Steven David

IPC: G01J3/28

CPC classification number: G01J3/2889 ,  G01J3/28 ,  G01J3/30 ,  G01J2003/062 ,  G01J2003/283 ,  G01J2003/2893