Optical Radiofrequency Signal Mixing by All-Optical Sampling Based on a Semiconductor Optical Amplifier Mach–Zehnder Interferometer

Bi2O2Te Nanosheets Saturable Absorber‐Based Passive Mode‐Locked Fiber Laser: From Soliton Molecules to Harmonic Soliton

“…However, due to the limited output power of the pump laser used in this study, only 238th order harmonics were observed. It should be noted that the output harmonic pulses exhibited a higher repetition rate and excellent SNR under moderate pump power levels, which is preferable for engineering applications, including ultrahigh‐speed optical time‐division multiplexing systems, [ 46 ] ultrafast all‐optical sampling, [ 47 ] and all‐optical clock recovery. [ 48 ]…”

“…However, due to the limited output power of the pump laser used in this study, only 238th order harmonics were observed. It should be noted that the output harmonic pulses exhibited a higher repetition rate and excellent SNR under moderate pump power levels, which is preferable for engineering applications, including ultrahigh-speed optical time-division multiplexing systems, [46] ultrafast all-optical sampling, [47] and all-optical clock recovery. [48] In addition, the performances of the proposed SA and SESAM [49] as well as those of various reported typical 2D SA-based (including graphene, [50] carbon nanotubes, [51] gold nanowires, [52] TIs, [53,54] transition metal dichalcogenides (TMDs), [55][56][57][58] Metal-organic frameworks (MOFs), [59] ferromagnetic insulators, [60] BP, [61] MXenes, [62] bismuthine, [63] tellurene, [64] and antimonene [65] ) passive mode-locking fiber lasers are summarized in Table 1.…”

Sampling rate influence in up and down mixing of QPSK and OFDM signals using an SOA‐MZI in a differential configuration

“…For switching, a differentially‐driven SOA‐MZI provides superior performances compared to single‐ended operation [7]. SOA‐MZI has been used as a sampling mixer in a previous work to perform up and down frequency conversions both in single‐ended and differential configurations [8–10]. In this Letter, we show that increasing the sampling frequency improves the efficiency and the quality of the optical transmission of QPSK and OFDM signals.…”

Single-beam Mach–Zehnder micro-interferometer based on magnetic fluids

“…Mach-Zehnder interferometer is a kind of very attractive device due to its extensive applications in photonics [16,17], biosensors [18,19], logical operations [20][21][22][23][24], optical communication [25,26], and memory device [27,28]. Hence, Mach-Zehnder interferometer has attracted a lot of interests from scientists and engineers.…”