Multifunctional optical signal processing system
A technology for processing systems and optical signals, applied in transmission systems, electromagnetic wave transmission systems, optical fiber transmission, etc. and other problems, to achieve the effects of high dispersion monitoring sensitivity, simple structure, and overcoming complex structure
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[0022] Such as figure 1 The shown all-optical dispersion monitor includes: a tunable dispersion compensator 1 (TDC), and the optical amplifier is an erbium-doped fiber amplifier 2 (EDFA). The optical amplifier can also use SOA or other optical amplifiers, such as a Raman optical amplifier, Optical amplifiers can also be omitted when the required signal power is low; optical couplers 3, 7 (Coupler) that provide optical coupling and optical splitting, semiconductor lasers 4 (LD) that provide continuous probe waves, and highly nonlinear optical fibers 5 (HNLF) , output optical filter 6 (BPF) and optical power meter 8 (PM). First, the EDFA is used to amplify the input signal light degraded by the single-mode fiber, and the amplified signal wave and the continuous detection wave output by the LD are combined by the optical coupler and then enter the HNLF. According to the principle of phase matching, select the wavelength of HNLF and probe wave with appropriate dispersion characte...
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