Title:
DEBUGGING METHOD AND DEVICE FOR OPERATING POINT VOLTAGE OF PARALLEL MZI ELECTRO-OPTICAL MODULATOR
Document Type and Number:
WIPO Patent Application WO/2018/040383
Kind Code:
A1
Abstract:
A debugging method and device for an operating point voltage of a parallel MZI electro-optical modulator. The parallel MZI electro-optical modulator comprises: a bus MZI (2) formed by a parallel connection of a sub MZI (3) in an I path and a sub MZI (4) in a Q path and is configured to fix a bias voltage of one sub MZI of the sub MZI (3) in the I path and the sub MZI (4) in the Q path; gradually adjusting a bias voltage of the other sub MZI, testing an extinction ratio Per of the bus MZI (2) when different bias voltages are applied, and finding a corresponding bias voltage as a an operating point voltage of the other sub MZI when the extinction ratio Per of the bus MZI (2) reaches a minimum value; finding a corresponding bias voltage as an operating point voltage of the one sub MZI when the extinction ratio Per of the bus MZI (2) reaches a minimum value; configuring the bias voltages of the two sub MZIs as operating point voltages corresponding to the two sub MZIs respectively, adjusting a phase modulation voltage of the bus MZI (2) until the output effect of the parallel MZI electro-optical modulator reaches the best, and determining the phase modulation voltage of the bus MZI (2). The method and device is simple; and debugging process thereof is fast and efficient.
Inventors:
HUANG ZHAO (CN)
ZHANG BO (CN)
QIAN KUN (CN)
HU YI (CN)
MA WEIDONG (CN)
ZHANG BO (CN)
QIAN KUN (CN)
HU YI (CN)
MA WEIDONG (CN)
Application Number:
PCT/CN2016/110665
Publication Date:
March 08, 2018
Filing Date:
December 19, 2016
Export Citation:
Assignee:
ACCELINK TECH CO LTD (CN)
International Classes:
H04B10/079
Foreign References:
| CN105871770A | 2016-08-17 | |||
| CN105515654A | 2016-04-20 | |||
| CN103048810A | 2013-04-17 | |||
| CN104485997A | 2015-04-01 | |||
| CN103684613A | 2014-03-26 | |||
| CN105700202A | 2016-06-22 |
Attorney, Agent or Firm:
BEIJING TIAN QI ZHI XIN INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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