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Design and Modeling of a Fully Integrated Microring-Based Photonic Sensing System for Liquid Refractometry.

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  • معلومة اضافية
    • المصدر:
      Publisher: MDPI Country of Publication: Switzerland NLM ID: 101204366 Publication Model: Electronic Cited Medium: Internet ISSN: 1424-8220 (Electronic) Linking ISSN: 14248220 NLM ISO Abbreviation: Sensors (Basel) Subsets: PubMed not MEDLINE; MEDLINE
    • بيانات النشر:
      Original Publication: Basel, Switzerland : MDPI, c2000-
    • الموضوع:
      Refractometry* ; Optics and Photonics*; Equipment Design ; Photons ; Light
    • نبذة مختصرة :
      The design of a refractometric sensing system for liquids analysis with a sensor and the scheme for its intensity interrogation combined on a single photonic integrated circuit (PIC) is proposed. A racetrack microring resonator with a channel for the analyzed liquid formed on the top is used as a sensor, and another microring resonator with a lower Q-factor is utilized to detect the change in the resonant wavelength of the sensor. As a measurement result, the optical power at its drop port is detected in comparison with the sum of the powers at the through and drop ports. Simulations showed the possibility of registering a change in the analyte refractive index with a sensitivity of 110 nm per refractive index unit. The proposed scheme was analyzed with a broadband source, as well as a source based on an optoelectronic oscillator using an optical phase modulator. The second case showed the fundamental possibility of implementing an intensity interrogator on a PIC using an external typical single-mode laser as a source. Meanwhile, additional simulations demonstrated an increased system sensitivity compared to the conventional interrogation scheme with a broadband or tunable light source. The proposed approach provides the opportunity to increase the integration level of a sensing device, significantly reducing its cost, power consumption, and dimensions.
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    • Grant Information:
      agreement No. 075-03-2021-014 Ministry of Science and Higher Education of the Russian Federation
    • Contributed Indexing:
      Keywords: integrated photonics; interrogation; optoelectronic oscillator; refractometry; silicon photonics
    • الموضوع:
      Date Created: 20221211 Date Completed: 20221216 Latest Revision: 20240908
    • الموضوع:
      20240909
    • الرقم المعرف:
      PMC9738929
    • الرقم المعرف:
      10.3390/s22239553
    • الرقم المعرف:
      36502253