Absolute Mode Number Determination Using Two Er:fiber Laser Combs for Optical Frequency Metrology

High-power supercontinuum generation using high-repetition-rate ultrashort-pulse fiber laser for ultrahigh-resolution optical coherence tomography in 1600 nm spectral band

“…This wide spectral width represents the characteristics of an oscillating pulse with high peak power and short temporal duration in a short cavity length. 27,28) This property is also characteristic of the soliton-similariton pulse modelocking regime. 22,23) Figure 4(c) shows the pulse train, which was measured with a fast photodiode (bandwidth: 2 GHz) and a digital oscilloscope (bandwidth: 300 MHz).…”

Study on high coupling efficiency Er-doped fiber laser for femtosecond optical frequency comb

“…There are two basic structures based on NPE mode-locked fiber lasers: the conventional ring cavity fiber laser and compact all-fiber laser [22,23]. With the conventional ring cavity, the shortest pulse and highest repetition rate can be obtained.…”

“…With the conventional ring cavity, the shortest pulse and highest repetition rate can be obtained. Reference [22] reported a 94 fs pulse duration with the repetition rate of 301 MHz and 3 dB spectral width of 60 nm. In 2010, [23] reported the shortest dechirped pulse width of 37.4 fs at a 225 MHz repetition rate after compression.…”

A Compact 500 MHz Femtosecond All-Fiber Ring Laser

“…Peng et al reported an NPE mode-locked Er 3þ -doped fiber laser with the repetition rate of 300 MHz and pulse width of 93 fs. 5) Based on the gain-guided mechanism and NPE, Zhao et al demonstrated a 234 MHz pulse fiber ring laser at 1.5 m. 6) Recently, Ma et al have reported a ring cavity Er 3þ -fiber laser at a repetition of 225 MHz, and the dechirped pulse width is 37.5 fs. 7) Lately, efforts have also been made on the high-repetition-rate Yb 3þ -fiber lasers.…”