Frequency comb-based microwave transfer over fiber with $7 \times 10^{-19}$ instability using fiber-loop optical-microwave phase detectors
| Autor: | Jung, Kwangyun, Shin, Junho, Kang, Jinho, Hunziker, Stephan, Min, Chang-Ki, Kim, Jungwon |
|---|---|
| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Opt. Lett. 39, 1577-1580 (2014) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1364/OL.39.001577 |
| Popis: | We demonstrate a remote microwave/radio-frequency (RF) transfer technique based on the stabilization of a fiber link using a fiber-loop optical-microwave phase detector (FLOM-PD). This method compensates for the excess phase fluctuations introduced in fiber transfer by direct phase comparison between the optical pulse train reflected from the remote site and the local microwave/RF signal using the FLOM-PD. This enables sub-fs resolution and long-term stable link stabilization while having wide timing detection range and less demand in fiber dispersion compensation. The demonstrated relative frequency instability between 2.856-GHz RF oscillators separated by a 2.3-km fiber link is $7.6 \times 10^{-18}$ and $6.5 \times 10^{-19}$ at 1000 s and 82500 s averaging time, respectively. Comment: 5 pages, 4 figures |
| Databáze: | arXiv |
| Externí odkaz: |
|