This application note proves the high efficiency of the Apex Technologies Optical Complex Spectrum Analyser AP2441B/AP2443B in measuring and testing any kind of usual modulation formats. Compared to a standard oscilloscope, the Optical Complex Spectrum Analyser AP2441B/AP2443B has a maximum bandwidth >6 THz due the complex spectral analysis principle giving access to the optical phase and intensity both in frequency and time domains. Therefore, the Optical Complex Spectrum Analyser has no baud/bit rate limitations. Examples of RZ short pulses (2 ps pulse-width), pulse time resolved chirp, Differential Phase-Shift Keying (DPSK) modulation and Quadrature Phase-Shift Keying (QPSK) modulation measurements are presented.
High quality-price ratio solution for Telecommunication applications, the APEX AP201x Series is equiped with PM Optical Input and the high resolution of 20 MHz/0.16 pm. Optical spectrum analyzer (OSA) ideal for industry application to characterise active or passive component.
- optical output of the built-in Tunable Laser Source (TLS), tracking generator function;
- SM/PM input switch, which lead to polarization independent measurement