High-efficiency passively Q-switched neodymium-doped fiber laser operation at 1360.61 nm with bismuth selenide as saturable absorber

Abstract

A high-efficiency Bi 2 Se 3 -based passively Q-switched Nd-doped fiber laser was demonstrated. The passively Q-switched operation produced a maximum average output power of 21.7 mW under a pulse repetition rate of 195.3 kHz, corresponding to a pulse energy of 111.2 nJ, which is much higher than the results obtained previously. Our results proved that CVD-Bi 2 Se 3 is an excellent candidate for demonstrating large-energy pulse operations. In addition, this is the first demonstration focusing on the application of 2D materials for obtaining pulse fiber laser operation within a 1.3 µm region.

Few‐Layer Mxene Ti3C2Tx (T=F, O, Or OH) for Robust Pulse Generation in a Compact Er‐Doped Fiber Laser

“…[34] In addition, the high-efficiency Q-switched pulses also are obtained in 1.3 μm Nd-doped fiber laser, whose pulse energy as high as 111.2 nJ. [35] However, to our knowledge, the pulse energy mentioned in previous work only limited to 120 nJ. Furthermore, the pulse energy above 200 nJ based on 2D materials hasn't been achieved till now.…”

Tin oxide as a Q‐switcher in an Nd‐doped fiber laser

“…3,4 To date, passively Q-switched fiber lasers (PQFLs) have been reported by using different kinds of gain media, such as Yb, 4 Er, 5 and Tm, 6 as they have mature fiber manufacturing technology and optical devices, wide practical applications, and excellent output performance. 7 In comparison with the above-mentioned gain media, PQFL based on neodymium-doped fiber (NDF) as a gain medium has relatively attracted little attention due to the immature manufacturing technology. Only a few reports have addressed Nd as a gain medium for PQFL application.…”

All-fiber all-normal-dispersion passively mode-locked neodymium-doped fiber laser operation at 1064 nm

“…Generally, the study of mode-locked Nd-doped fiber laser mainly focuses on the half-fiber structure mode-locked lasers or lasers with output wavelength in the 1360 and 930 nm bands [36][37][38]. Compared with half-fiber structures, all-fiber structure has advantage of no spatial modulation device, which will make it have the characteristics of strong anti-interference ability and easy transportation.…”