Stable Similariton Generation in an All-Fiber Hybrid Mode-Locked Ring Laser for Frequency Metrology

Abstract

Ultrashort pulse lasers constitute an important tool in the emerging field of optical frequency metrology and are enabling unprecedented measurement capabilities and new applications in a wide range of fields, including precision spectroscopy, atomic clocks, ultracold gases, and molecular fingerprinting. We demonstrate the generation of stable 127-fs self-similar pulses at a central wavelength of 1560 nm with 7.14-mW average output power. Similariton lasers have a low repetition rate deviation in the averaging time interval [Formula: see text], a low relative intensity noise [Formula: see text] (30 Hz to 10 kHz), a narrow single comb line width of 32 kHz, and high reliability. Thus, such lasers are highly promising for further development of the stabilized combs and open up a robust and substantially simplified route to synthesizing low-noise microwaves.

Dynamics of carbon nanotube-based mode-locking fiber lasers

“…There are only a very few researches on CNT-SA based SsP generation [78,150,153], mainly due to the difficulties of dispersion control and the requirement of extra spectral filter. Here, we highlight the SsP generation in the Er-doped fiber laser mode-locked by NPE mechanism in conjunction with CNT-SA, as shown in Figure 6(A)-(C) [150]. In the cavity, the NPE was completed by locating two polarization controllers at both ends of the birefringent "PANDA"-type silica-glass fiber (PZ-fiber).…”

Stability Study of Output Characteristics of All-Fiber Ultrashort Pulse Ring Erbium Lasers

“…Автокорреляционная функция по интенсивности на различных мощностях накачки с приближением функцией Гаусса приведена на рис. 5, б. Полностью волоконный лазер генери-ровал УКИ с минимальной длительностью импульса 92,6 фс, частотой следо-вания 38,1 МГц, и средней оптической мощностью 6,9 мВт со стабильными частотными характеристиками [10].…”

“…рис. 4, б) RIN составил менее -130 дБс/Гц, а ширина линии комба 18,1 кГц, что является хорошим показателями качества для лазеров дан-ного типа [10]. Заключение.…”

Broadband Continuously Tunable All-Fiber Laser Based on OPG for CARS Imaging

“…In addition, modelocked YDF-based fiber lasers have focused on all-normal dispersion cavities to perform fiber integrated setups with no need of dispersion compensation [22,23]. These requirements are essential for fundamental researches, such as optical microscopy [24], frequency metrology [25]… especially in biophotonics [26] and non-invasive label-free imaging techniques as: optical coherence tomography (OCT) [27], multiphoton microscopy (MPM) [28,29] and coherent anti-Stokes Raman scattering (CARS) [30][31][32]. In particular, CARS microscopy has been demonstrated as a potent technique in biomedical applications providing high sensitivity and video-rate and image-rate speed using ultrashort laser sources [33].…”