Continuum suppressed, uniformly repetitive 136 fs pulse generation from an erbium-doped fibre laser with nonlinear polarisation rotation

Nakazawa, Masataka; Yoshida, Eiji; Sugawa, T.; Kimura, Yasuo

doi:10.1049/el:19930890

Cited by 52 publications

(29 citation statements)

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“…The NALM is attached to a unidirectional fiber ring, forming a figure-8 shaped cavity where the reflected low intensities are then extinguished by the isolator in the unidirectional ring. Pulses as short as 98 fs have been generated at 1.57 µm by an Er +3 -doped fiber laser with an NALM and an Er +3 -doped fiber amplifier in the unidirectional, linear loop [33]. A disadvantage of figure-8 lasers has been the tendency for operation with bursts of multiple pulses because of long cavity lengths.…”

Section: Review Of Passive Mode-locking Techniques and Resultsmentioning

confidence: 99%

Ultrashort-pulse fiber ring lasers

Nelson¹,

Jones²,

Tamura³

et al. 1997

Applied Physics B: Lasers and Optics

755

385

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Abstract. This paper reviews recent progress on ultrashort pulse generation with erbium-doped fiber ring lasers. The passive mode-locking technique of polarization additive pulse mode-locking (P-APM) is used to generate stable, selfstarting, sub-500 fs pulses at the fundamental repetition rate from a unidirectional fiber ring laser operating in the soliton regime. Saturation of the APM, spectral sideband generation, and intracavity filtering are discussed. Harmonic modelocking of fiber ring lasers with soliton pulse compression is addressed, and stability regions for the solitons are mapped and compared with theoretical predictions. The stretchedpulse laser, which incorporates segments of positive-and negative-dispersion fiber into the P-APM fiber ring, generates shorter (sub-100 fs) pulses with broader bandwidths (> 65 nm) and higher pulse energies (up to 2.7 nJ). We discuss optimization of the net dispersion of the stretched-pulse laser, use of the APM rejection port as the laser output port, and frequency doubling for amplifier seed applications. We also review the analytical theory of the stretched-pulse laser as well as discuss the excellent noise characteristics of both the soliton and stretched-pulse lasers. 42.60F; 42.65; 42.80 Fiber lasers were made possible in the 1960s by the incorporation of trivalent rare-earth ions such as neodymium, erbium, and thulium into glass hosts [1]. Soon thereafter neodymium was incorporated into the cores of fiber waveguides [2,3]. Due to the high efficiency of the Nd +3 ion as a laser, early work focused on Nd +3 -doped silica fiber lasers operating at 1.06 µm [4]. Doping of silica fibers with Er +3 ions was not achieved until the 1980s [5,6]. Since that time Er +3 -doped fiber lasers have received much attention, because the lasing wavelength at 1.55 µm falls within the low-loss window of optical fibers and thus is suitable for optical fiber communications. Rare-earth ions such as Ho +3 [7,8], Tm +3 [9-11], and * Current address: Lucent Technologies/Bell Labs, 791 Holmdel-Keyport Road, Holmdel, NJ, USA * * Current address: NTT Access Network Systems Laboratory, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, Japan Yb +3 [12,13] have also been used as dopants or co-dopants in silica or fluoride fibers, allowing new lasing or pumping wavelengths, and Pr +3 has been incorporated into fluoride fiber, providing emission at 1.3 µm [14,15]. PACS:Among the numerous advantages of fiber lasers are simple doping procedures, low loss, and the possibility of pumping with compact, efficient diodes. The fiber itself provides the waveguide, and the availability of various fiber components minimizes the need for bulk optics and mechanical alignment. Many different cavity configurations can be easily built with fibers and fused-fiber couplers, including linear FabryPerot, ring, and combinations of the two. Enhancement of the fiber nonlinearity due to large signal intensities and long interaction lengths is an additional advantage of fiber lasers that is particularly important for mode-locki...

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Section: Review Of Passive Mode-locking Techniques and Resultsmentioning

confidence: 99%

Ultrashort-pulse fiber ring lasers

Nelson¹,

Jones²,

Tamura³

et al. 1997

Applied Physics B: Lasers and Optics

755

385

View full text Add to dashboard Cite

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“…2 [15]. The laser is composed of a polarization dependent isolator, an output coupler, a WDM coupler, erbium-doped fiber, and a polarizer.…”

Section: Passively Mode-locked Fiber Lasermentioning

confidence: 99%

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

Nakazawa

2005

J Optic Comm Rep

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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 .

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“…When linear polarized light passes through a non-PM fiber, it gradually becomes elliptically polarized light because a phase difference is induced by the heat and mechanical action. It is necessary to insert a phase controller and a polarization controller in the cavity to maintain the polarization state and to suppress polarization perturbations [2,3].…”

Section: Introductionmentioning

confidence: 99%

All polarization‐maintaining type Yb mode‐locked fiber laser with photonic crystal fiber

Sumimura

Yoshida

Tanaka

et al. 2007

Electron Comm Jpn Pt II

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SUMMARYWe have demonstrated a polarization-maintaining (PM) Yb mode-lock highly stable fiber laser with high beam quality. The characteristics of side-hole type PM Yb-doped fiber (YDF) were examined. The splicing connection between PM-YDF and PANDA fiber was optimized. We optimized the laser oscillation output and improved the efficiency of the fiber length in the Fabry-Perot cavity. We demonstrated an all PM single-mode fiber ring cavity. Mode-locking was produced by inserting a semiconductor saturable absorption mirror (SESAM). A PM photonic crystal fiber (PCF) was used for dispersion compensation in the cavity. Stable mode-lock operation with 500-ps pulses at 7.2 MHz was observed.

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Continuum suppressed, uniformly repetitive 136 fs pulse generation from an erbium-doped fibre laser with nonlinear polarisation rotation

Cited by 52 publications

References 0 publications

Ultrashort-pulse fiber ring lasers

Ultrashort-pulse fiber ring lasers

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

All polarization‐maintaining type Yb mode‐locked fiber laser with photonic crystal fiber

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