Abstract
We propose a high-gain and frequency-selective amplifier for a weak optical signal based on stimulated Brillouin scattering in a single mode fiber. To be able to satisfy the needs of high gain and high signal-to-noise ratio laser pulse amplification, different fiber lengths and core diameters are used to fulfill this experiment. In the experiment, a 430 nW (peak power) pulsed signal is amplified by 70 dB with a signal-to-noise ratio of 14 dB. The small size, high gain, low cost, and low noise of the fiber Brillouin amplifier make it a promising weak signal amplification method for practical applications such as lidar.
| Original language | English |
|---|---|
| Article number | 111901 |
| Journal | Chinese Optics Letters |
| Volume | 16 |
| Issue number | 11 |
| DOIs | |
| State | Published - 10 Nov 2018 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2018 Chinese Optics Letters.
Funding
This work was supported by the National Natural Science Foundation of China (No. 61605034).
| Funders | Funder number |
|---|---|
| National Natural Science Foundation of China | 61605034 |