A 1.65μm three-section Distributed Bragg Reflective (DBR) laser for CH4 gas sensor was reported. Wide tunable range
covering R3 and R4 methane absorption line manifolds. Wavelength tunable properties and temperature stability were
characterized and analyzed. Several advantages were demonstrated compared with traditional DFB laser in harmonic
detection method.
A novel EAM/PD monolithically-integrated optical logic element is presented. 5Gb/s optical logic AND gate operations
at about -2 V for non-return-to-zero (NRZ) signals with8.4dB extinction ratio and16mW absorbed optical power was
demonstrated.
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