Abstract
We report the precise transfer of radio-frequency signals by use of the pulse repetition frequency of mode-locked laser sources at 1.5 μm transmitting through a fiber network. The passive transfer instability through a 6.9-km fiber is below 3 × 10-14 at 1 s, which is comparable with the optical carrier-frequency transfer of a narrow-linewidth cw laser. The instability of the measurement system is below 7 × 10-15 at 1 s. It is noted that the pulsed mode of operation offers almost an order-of-magnitude improvement in stability at 1 s over that with a sinusoidal amplitude modulation on an optical carrier.
Original language | English |
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Pages (from-to) | 1554-1556 |
Number of pages | 3 |
Journal | Optics Letters |
Volume | 29 |
Issue number | 13 |
DOIs | |
Publication status | Published - 1 Jul 2004 |
Externally published | Yes |