1.
Rev Sci Instrum
; 94(12)2023 Dec 01.
Artigo
em Inglês
| MEDLINE
| ID: mdl-38078816
RESUMO
To benefit high-power interferometry and the creation of low-noise light sources, we develop a simple lead-compensated photodetector enabling quantum-limited readout from 0.3 to 10 mW and 10 kΩ gain from 85 Hz to 35 MHz, with a noise equivalent power of 9 pW/Hz. Feeding the detector output back to an intensity modulator, we suppress the classical amplitude noise of a commercial 1550 nm fiber laser to the shot noise limit over a bandwidth of 700 Hz-200 kHz, observing no degradation to its (nominally â¼100 Hz) linewidth.