Ultrafast mode-locked fiber lasers for high-speed OTDM transmission and related topics

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7 Citations (Scopus)


Ultrashort optical pulse sources in the 1.5-μm region are becoming increasingly important in terms of realizing ultrahigh-speed optical transmission and signal processing at optical nodes. This paper provides a detailed description of several types of mode-locked erbium-doped fiber laser, which are capable of generating picosecond-femtosecond optical pulses in the 1.55-μm region. In terms of ultrashort pulse generation at a low repetition rate (100 MHz), passively mode-locked fiber lasers enable us to produce pulses of approximately 100 fs. With regard to high repetition rate pulse generation at 10-40 GHz, harmonically mode-locked fiber lasers can produce picosecond pulses. This paper also describes the generation of a femtosecond pulse train at a repetition rate of 10-40 GHz by compressing the output pulses from harmonically mode-locked fiber lasers with dispersion-decreasing fibers. Finally, a new Cs optical atomic clock at a frequency of 9.1926 GHz is reported that uses a regeneratively mode-locked fiber laser as an opto-electronic oscillator instead of a quartz oscillator. The repetition rate stability reaches as high as 10 -12-10-13.

Original languageEnglish
Pages (from-to)462-496
Number of pages35
JournalJournal of Optical and Fiber Communications Reports
Issue number5
Publication statusPublished - 2005 Nov


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