I.S. EN 50083-6:1998

Foreword
1 Scope
    1.1 General
    1.2 Specific scope of this part 6
2 Normative references
3 Terms, definitions, symbols and abbreviations
    3.1 Terms and definitions
    3.2 Symbols
    3.3 Abbreviations
4 Methods of measurement
    4.1 General measurement requirements
    4.2 Optical power
    4.3 Loss, isolation, directivity and coupling ratio
    4.4 Return loss
    4.5 Saturation of output power of an optical amplifier
    4.6 Influence of polarization
    4.7 Central wavelength and spectral width under
          modulation
    4.8 Linewidth and chirp of transmitters with single mode
          lasers
    4.9 Extinction ratio
    4.10 Optical modulation index
    4.11 Voltage responsivity of an optical receiver
    4.12 Frequency range and flatness
    4.13 Composite second order distortion (CSO) of optical
          transmitters
    4.14 Composite triple beats (CTB) of optical transmitters
    4.15 Composite crossmodulation of optical transmitters
    4.16 Receiver intermodulation
    4.17 CSO of optical amplifiers
    4.18 CTB of optical amplifiers
    4.19 Carrier to noise ratio
    4.20 Method for combined measurement of relative intensity
          noise (RIN), optical modulation index and equivalent
          input noise current
    4.21 Noise figure of optical amplifiers
    4.22 Bit error rate (BER)
    4.23 Influence of dispersion
5 Universal performance requirements and recommendations
    5.1 Safety
    5.2 Electromagnetic compatibility (EMC)
    5.3 Environmental
    5.4 Marking
6 Active equipment
    6.1 Optical transmitters
    6.2 Optical receivers
    6.3 Optical amplifiers
7 Passive equipment
    7.1 Connectors and splices
    7.2 Multiplexers, splitters, directional couplers and
          isolators
Figure 1 Measurement of optical power
Figure 2 Measurement of optical loss, directivity and isolation
Figure 3 Measurement of the optical return loss
Figure 4 Measurement of the saturation of the optical
           output power
Figure 5 Saturated optical output power
Figure 6 Measurement of the polarization stability
Figure 7 Measurement of central wavelength and spectral
           width under modulation
Figure 8 Measurement of the chirp and the linewidth of
           transmitters
Figure 9 Measurement of the extinction ratio
Figure 10 Measurement of the optical modulation index
Figure 11 Measurement of the voltage responsivity of an
           optical receiver
Figure 12 Measurement of the frequency range and flatness
Figure 13 Device under test for measuring CSO for optical
           transmitters
Figure 14 Device under test for measuring CTB of optical
           transmitters
Figure 15 Arrangement for measuring composite crossmodulation
           of optical transmitters
Figure 16 Arrangement of test equipment for measuring
           receiver intermodulation
Figure 17 System with internal noise sources
Figure 18 PIN diode receiver
Figure 19 Optical transmission system under test
Figure 20 Arrangement of test equipment for carrier-to-noise
           measurement
Figure 21 Measurement set-up for determination of the noise
           parameters and the optical modulation index
Figure 22 Measurement of the noise figure of an optical
           amplifier
Figure 23 Measurement of the bit error rate