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We propose a small-signal circuit model for a sampled grating distributed Bragg reflector (SGDBR) laser monolithically integrated with a semiconductor optical amplifier (SOA). The modulation response of different levels of the SOA-integrated SGDBR laser has been analyzed by this model including parasitic effect.
This letter demonstrates a fast optical wavelength-tunable transmitter based on a sampled grating distributed Bragg reflector (SG-DBR) laser. A high-precision clock distributing circuit has been introduced into the transmitter to guarantee the switching synchronization for driving currents to different tuning sections of the SG-DBR laser. To achieve fast and accurate wavelength switching, a linear...
A spatial and wavelength division multiplexing fiber Bragg grating (FBG) sensing system for monitor the temperature and the pressure (T-P) of hot water pipeline in petrochemical factory is reported. The FBG sensing system has 72 channels independently, and it provides the capability to monitor large number sensors at same time. A resolution of 0.1??C and 0.01 MPa with a measurement bandwidth of 150...
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