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R&D departments

Central Chamber for Telecommunication Metrology (Z-12)


The main aims of Central Chamber for Telecommunications Metrology activity are to provide measurement traceability and to conduct research on new and more accurate measurement and calibration methods.

Department consists of the following teams:

  • Basic Parameter Metrology Team, which works on the metrology of basic parameters, such as DC&AC, LF voltage and current, resistance, capacitance, inductance, impedance and power and also on automation of measurement systems;
  • Telecommunication Parameters Metrology Team, which works on the metrology of RF and microwave signals and also on transmission parameters of telecommunication networks (PDH/SDH, Ethernet, SONET etc.);
  • Optoelectronic Metrology Team, which works on optoelectronic metrology of such parameters as optical power, back reflection, wavelength, chromatic and polarization mode dispersion, optical attenuation and optical fiber length;
  • Time and Frequency Metrology Team, which works on time and frequency metrology, especially the implementation of atomic clocks comparison algorithms and determination, and control of timescales, time transfer systems, measurements automation, accurate measurements of frequency, time, phase time, interval, TIE.
  • Optical Communications Team, which conducts research on ultra-fast transmission in optical fibre transparent networks, wavelength and space-division multiplexing (SDM), optical fibre access (FTTH), nonlinear optical effects, application of innovative photonic crystal technologies, sub-wavelength photonics, microwave photonics, reliability of optical components and networks, optimization of SDM and Optical Elastic Networks (EON), its energy efficiency and assurance of Quality of Service (QoS).

Research activity of Z-12 focuses on optical fibre metrology, theoretical and experimental studies of periodic and other (mainly fibre optic) structures for telecom and sensing applications in cooperation with domestic and international partners. Moreover, Z-12 carries out research in the area of modelling and design of diffractive optical elements for optics and photonics.

National Institute of Telecommunications (NIT) has been operating time standards for over 15 years. They are part of worldwide and national time comparison system and are used in calculations of international and Polish timescales, International Atomic Time Scale (TAI), Universal Time Coordinated (UTC), Polish Atomic Time Scale (TA(PL)) and Polish Official Time (UTC(PL)). Thanks to close cooperation with the Central Office of Measures (GUM) and the operating fiber-optic time transfer system between NIT and GUM, the National Institute of Telecommunications has installed and operates a two-way satellite transfer system (TWSTFT) for Polish official time UTC (PL). As part of the world system of national time scales comparisons, supervised by BIPM work, only about 25 such sets. The Institute has also developed and manages an automatic acquisition and calculation system for the Polish Atomic Time Scale TA (PL) created from time clocks working in laboratories from Poland and Lithuania.

The Optical Communications Team (former Transmission and Optical Technologies Department, Z-14), since 1999 has annually organized the International Conference on Transparent Optical Networks (ICTON).

The following units operate within the Central Chamber for Telecommunications Metrology:

  • Calibration Laboratory: Laboratory of Electrical, Electronic & Optoelectronic Metrology (LMEEiO), which has accreditation certificate issued by the Polish Centre for Accreditation (AP 015);
  • Proficiency Testing Organization: Unit of Interlaboratory Comparisons, which has accreditation certificate issued by the Polish Centre for Accreditation (PT 001).


Z-12 is open for cooperation with anyone interested in improving their measurement accuracy and reliability. Its competences are proven by customers and also by the Polish Centre for Accreditation.

Z-12 can offer calibration service of a wide scope of electronic measurement equipment in its laboratory and on-site. The development of automated measurement systems according to customer requirements is also an important part of the activity. Z-12 full-scale measurement facilities would be helpful in R&D activity performed for the clients.

In terms of R&D activity, Optoelectronic Metrology Team offers cooperation in the field of basic and applied research in optics and photonics. In particular, the team has experience in the area of fibre optic measurements as well as design of photonic and diffractive optical elements, especially periodic structures (such as photonic crystals, FBGs, LPGs), and their applications in telecommunication and sensing.

The Optical Communications Team offers conformance and certification testing of optical fibre cables and passive components, in particular connectors and patch cords, measurements of fibre attenuation, return loss, PMD, as well as diverse environmental tests. The team has experience in modelling, design and optimization of modern optical communication networks, considering the quality of service, physical layer impairments, energy efficiency, and elastic spectrum assignment, as well as in the area of photonic crystal technologies, micro-structured fibres (PCF), microwave photonics, and subwavelength photonics. Another area of activity is technical consultancy and training for the Polish telecom sector, especially in the fields of fiber optics, measurements, and broadband access networks.