Archive > Volume 14 Issue 5 > 2018,14(5):376-379. DOI:https://doi.org/10.1007/s11801-018-8042-9 CSTR:[cstr] Prev Next
VCSEL polarization modulation for pulse-per-second clock signal transfer in optical frequency distribution systems
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Abstract:
In this paper, a novel vertical cavity surface emitting laser (VCSEL) polarization modulation technique based on polarization switching due to thermal heating in a single transverse mode class 10 G VCSEL at 1 310 nm is demonstrated experimentally. The inherent orthogonal polarization switching of the VCSEL carrier with changing bias is exploited in the transmission of pulse-per-second (PPS) timing clock signal. Experimental results show that PPS pulse widths of 9.97 µs and 9.98 µs are measured for back-to-back analysis and over 3.21 km of G 652 urban fibre transmission, respectively. This work provides a novel alternative for adoption in optical frequency and time transfer applications.
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