VCSEL polarization modulation for pulse-per-second clock signal transfer in optical frequency distribution systems
G. M. Isoe, A. W. R. Leitch, T. B. Gibbon
Optoelectronics Letters ›› , Vol. 14 ›› Issue (5) : 376-379.
VCSEL polarization modulation for pulse-per-second clock signal transfer in optical frequency distribution systems
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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S. inc.. FS725 Rubidium Frequency Standard Operation and Service Manual, 2015, 1290-D Reamwood Avenue, Sunnyvale, California 94089, Stanford Research Systems
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