Optical equipment measurement method and system

An optical device and device technology, applied in the field of optical device measurement, can solve problems such as the limitation of the dynamic range of the measurement system, the inability to realize optical single-sideband modulation, and large measurement errors, so as to improve measurement accuracy and dynamic range, and eliminate measurement errors , The effect of high-precision optical device measurement

Active Publication Date: 2013-12-04
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] Limited by the existing optical single sideband modulation technology, ideal optical single sideband modulation cannot be realized. There are often high-order sidebands in the optical modulation signal, which will introduce considerable measurement errors during the measurement process. The dynamic range of the measurement sy...

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  • Optical equipment measurement method and system
  • Optical equipment measurement method and system
  • Optical equipment measurement method and system

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Embodiment Construction

[0015] The technical scheme of the present invention is described in detail below in conjunction with accompanying drawing:

[0016] The idea of ​​the present invention is based on the existing optical device measurement method based on optical single sideband modulation, two optical single sideband detection signals including carrier and carrier suppression are used for measurement, and the response measured by the detection signal without carrier The method of calibrating the response measured by the carrier detection signal eliminates the measurement error caused by the beating frequency between adjacent high-order sidebands in the detection signal during the measurement process, thereby achieving high-precision measurement.

[0017] figure 2 The optical device measurement system of the present invention is shown, as shown in the figure, the system includes a light source, a microwave frequency sweep source, an optical single sideband modulation unit, an optical filter, an...

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Abstract

The invention discloses an optical equipment measurement method and belongs to the technical field of optical equipment measurement and microwave photonics. According to the method, on the basis of existing optical equipment measurement methods based on optical single-sideband modulation, two single-sideband detection signals (namely single-sideband detection signals including carriers and carrier suppression) are combined; accordingly, measurement errors caused by beat frequency between adjacent high-order sidebands in the optical single-sideband detection signals are eliminated, and measurement accuracy and dynamic range of the measurement system are increased greatly. The invention further discloses the optical equipment measurement system. The optical equipment measurement method and system has the advantages that optical equipment can be measured finely and accurately and the optical equipment measurement technology based on single-sideband modulation can be practical.

Description

technical field [0001] The invention relates to a method for measuring an optical device, in particular to a method for measuring an optical device using a measurement system based on optical single-sideband modulation, and belongs to the technical fields of optical device measurement and microwave photonics. Background technique [0002] With the rapid development and continuous improvement of photonic technology, high-precision optical devices need to be developed urgently. To develop high-precision optical devices, high-precision measurement technology must be supplemented. However, the existing optical device measurement technology has many problems such as low measurement accuracy and inability to realize multi-dimensional parameter measurement, which makes it impossible to make breakthroughs in the development of high-precision optical devices. In addition, existing high-precision optical devices (such as high-Q microresonators such as microrings and microspheres) cann...

Claims

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Application Information

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IPC IPC(8): G01M11/02
Inventor 潘时龙薛敏赵永久
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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