Title :
A novel scheme for noise suppression in optical comb generation
Author :
Xia Zhang ; Jiachuan Lin ; Xiaoguang Zhang ; Lixia Xi ; Wenbo Zhang
Author_Institution :
State Key Lab. of Inf. Photonics & Opt. Commun., Beijing Univ. of Posts & Telecommun., Beijing, China
Abstract :
A novel scheme by inserting an Asymmetry Mach-Zehnder Interferometer (AMZI) in Recirculating Frequency Shifter (RFS) loop is proposed. Using this scheme, tone-to-noise ratio (TNR) of Optical Frequency Comb can be enhanced by suppressing the accumulated amplified spontaneous emission (ASE) noise. An optical frequency comb with 49 tones based on this method was generated. The experimental results are in good accordance with the theoretical and numerical analyses. It is shown that TNR of the optical frequency comb generated by the improved scheme can be as high as 37.5dB.
Keywords :
Mach-Zehnder interferometers; interference suppression; optical communication equipment; superradiance; AMZI; ASE; TNR; amplified spontaneous emission noise; asymmetry Mach-Zehnder interferometer; noise suppression; optical comb generation; optical frequency comb; recirculating frequency shifter loop; tone-to-noise ratio; Noise measurement; Asymmetry Mach-Zehnder Interferometer; Noise Compression; Optical Frequency Comb;
Conference_Titel :
Advanced Infocomm Technology (ICAIT), 2013 6th International Conference on
Conference_Location :
Hsinchu
Print_ISBN :
978-1-4799-0464-8
DOI :
10.1109/ICAIT.2013.6621474
