A direct-modulation OEO (DM-OEO) generating stable 10 GHz and 20 signals is presented. single loop a dual approach are implemented compared. We show an output signal of 15 dBm RF power, phase noise as low −135 dBc/Hz at kHz offset from the carrier. The second harmonic exhibits level −127 kHz. high spur reduction also obtained in architecture.

A frequency-tunable low phase noise magneto-acoustic resonator is developed on the base of a parallel-plate straight-edge bilayer consisting yttrium-iron garnet (YIG) layer grown substrate gallium-gadolinium garnet(GGG). When YIG/GGG sample forms an ideal parallel plate, it supports series high-quality-factor acoustic modes standing along plate thickness. Due to magnetostriction YIG ferromagnet...

Fast data links require a low phase noise reference clock. An alternative is to reduce the noise of a low cost clock part using the band pass filtering inherent to the clocking architecture in the link. This study has a two-fold objective: to verify clock noise filtering in a 16 Gbps data link, and to prove the degree of filtering is adjustable. Two measured band pass filters are presented. Clo...