Title:
METHOD FOR ADJUSTING TIME DELAY DIFFERENCE BETWEEN UNEQUAL-ARM INTERFEROMETER CHIP AND TIME PHASE CODING CHIP
Document Type and Number:
WIPO Patent Application WO/2023/246768
Kind Code:
A1
Abstract:
Disclosed in the present invention is a method for adjusting a time delay difference between an unequal-arm interferometer chip and a time phase coding chip. An adjustable optical delay module realized by means of an interferometer structure is introduced into an optical arm of an unequal-arm interferometer chip (module), such that parameters (e.g. a modulation phase and a light attenuation value) of the interferometer structure can be simply changed, an optical transmission path of an optical signal is switched, and a time delay realized by the adjustable optical delay module is adjusted, and thus a time delay difference between the unequal-arm interferometer chip and a time phase coding chip is adjusted, thereby effectively solving the problems in the prior art of productization of a time phase coding chip being limited caused by an excessively large difference between lengths of actual delay lines between different chips of different batches or of the same batch, etc.
Inventors:
LIU RENDE (CN)
MA KUN (CN)
TANG SHIBIAO (CN)
MA KUN (CN)
TANG SHIBIAO (CN)
Application Number:
PCT/CN2023/101355
Publication Date:
December 28, 2023
Filing Date:
June 20, 2023
Export Citation:
Assignee:
QUANTUMCTEK CO LTD (CN)
International Classes:
H04B10/556
Domestic Patent References:
| WO2017092484A1 | 2017-06-08 |
Foreign References:
| CN218276718U | 2023-01-10 | |||
| CN218162473U | 2022-12-27 | |||
| CN210380876U | 2020-04-21 | |||
| CN216016875U | 2022-03-11 |
Other References:
LIANG JING, JIE LIU, JING GAO, ZHANG LIN-BO, GUAN-JUN X U: "Study of laser frequency stabilization based on fiber-based Michelson interferometer", JOURNAL OF TIME AND FREQUENCY, vol. 36, no. 4, 4 November 2013 (2013-11-04), pages 193 - 198, XP093120986, DOI: 10.13875/j.issn.1674-0637.2013.04.001
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
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