Single-longitudinal-mode operation of an Nd³⁺-doped fibre laser

Amplification of Picosecond Pulses in Neodymium-doped Single-mode Optical Fibres

“…Single-mode [5], Q-switched [6] and mode-locked operation [7,8] have been demonstrated, as has c .w. laser action in bands not normally possible at room temperature in three-level systems [9] .…”

<title>Noise characteristics of rare-earth-doped fiber sources and amplifiers</title>

“…The measured values indicate that fiber amplifier phase noise is unlikely to limit the performance of high-bit-rate coherent communication systems. 4. SUPERFLUORESCENT SOURCES…”

Ultralong π-phase shift fiber Bragg grating empowered single-longitudinal mode DFB phosphate fiber laser with low-threshold and high-efficiency

“…1–6 Distributed feedback (DFB) fiber lasers 7–9 as well as distributed Bragg reflector (DBR) fiber lasers 10–12 are two of the most common routes to achieve single-frequency lasing. Both DFB and DBR fiber lasers are constructed based on short-length linear cavity, a few cm in length at most, to enlarge longitudinal-mode spacing and hence achieve robust single-frequency operation.…”

“…In the past few years, single-frequency lasers have attracted a lot of interest for their important applications and developments in different fields such as coherent telecommunications, LIDAR, high resolution sensing, atom frequency standard, etc. 1 – 6 Distributed feedback (DFB) fiber lasers 7 – 9 as well as distributed Bragg reflector (DBR) fiber lasers 10 – 12 are two of the most common routes to achieve single-frequency lasing. Both DFB and DBR fiber lasers are constructed based on short-length linear cavity, a few cm in length at most, to enlarge longitudinal-mode spacing and hence achieve robust single-frequency operation.…”