Laser & Optoelectronics Progress, Volume. 60, Issue 11, 1106031(2023)
Broadband Miniaturized All-Fiber Source with an Intensity-Difference Squeezed State
In this study, a miniaturized light source with an intensity-difference squeezed state is fabricated. The light source uses a dispersion-shifted fiber as the nonlinear medium, and its pulse pump light repetition frequency is approximately 50 MHz. The light source has a stable structure and small size. The intensity difference compression characteristics of the light source in a wide range of frequencies are measured and analyzed using a broadband wide difference detector. The results show that the intensity difference noise measured at a frequency less than 65 MHz at room temperature is lower than the shot noise limit; furthermore, the intensity difference compression at 20 MHz is about 3.8 dB. This study lays a foundation for the measurement of the intensity difference squeeze in time domain.
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Ang Sun, Xueshi Guo, Wen Zhao, Xiaoying Li. Broadband Miniaturized All-Fiber Source with an Intensity-Difference Squeezed State[J]. Laser & Optoelectronics Progress, 2023, 60(11): 1106031
Category: Fiber Optics and Optical Communications
Received: Oct. 27, 2022
Accepted: Feb. 22, 2023
Published Online: Jun. 14, 2023
The Author Email: Sun Ang (980870193@qq.com)