PFDA ; Optical modulation device for high-speed communication and frequency character inspection device for light Receiver

Photonic Frequency Domain Analyzer （PFDA-288 Series) Optical modulation device for high-speed communication and frequency character inspection device for light Receiver System configuration Two-Tone Light Source Vector Network Analyzer (VNA)　 PFDA-288 Series of Think-lands. 　 of Rohde & Schwarz. Overview and measurement principle of Two-Tone Light Source New standard measurement equipment LD LN modulator DUT Optical Control Circuit Control Circuit PowerMonitor VNA The PFDA works in conjunction with a VNA based on a principle that Optical S21 can be measure by the power values of light and electricity. This system makes it possible to measure broadband and high-sensitivity measurements by with various functions of VNA. Think-Lands Co., Ltd https://think-lands.co.jp

Think-Lands Co., Ltd Photonic Frequency Domain Analyzer（PFDA-288 Series) Principles of Trace measurement Optical spectrum square-law RF spectrum detection by PD 2xFrf P1 P2 λ 2xFrf f Two-tone with an interval twice the applied frequency occurs, an input power of twice of this Frf is obtained at a photodiode. Optical spectrum RF spectrum FL FH λ P1 P2 FL FH f Optical S21 trace can be measured by sweeping the two-tone. Provisional specifications Items Specifications Wavelength 1529 nm to 1563 nm Frequency 200 MHz to 50 GHz Relative gain accuracy < ± 1.2 dB Absolute gain accuracy < ± 1.6 dB Measurement example︓ Ⅱ-Ⅵ XPDV3120R (Bandwidth 70GHz) * The Two-Tone light source was developed 　based on the results of NICT: National Institute Frequency [GHz] 　of Information and Communications Technology eigyou@think-lands.com 75-1 Ono-cho, Tsurumi-ku, Yokohama-shi, Kanagawa Leading Venture Plaza No.1 Building No. 502 Room https://think-lands.co.jp　　Open Mon.-Fri. 9 am to 5 pm. Responsivity [dB] Optical power Optical power Electrical power Electrical power