A dual-laser indium phosphide photonic integrated circuit for precision spectroscopy lidar was designed and fabricated. A stabilization experiment demonstrated a twentyfold improvement in the long-term frequency stability of the master laser.
An optical phase modulator suitable for monolithic integration demonstrates efficient operation from 980 nm through 1360 nm. Measured Vπ∙L ranges from 0.6 V∙cm to 1.22 V∙cm with less than 0.5 dB residual amplitude modulation.
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