A 10 GHz 2.5 ps Regeneratively Mode-Locked Yb Fiber Laser in the 1.1 μm Band

Koizumi, Keiichi; Yoshida, Masato; Hirooka, Toshihiko

doi:10.1364/cleo_si.2011.cmbb3

Cited by 7 publications

(11 citation statements)

References 5 publications

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“…Such kind of optical source is attractive in terms of optical transmission applications in 1-μm band. Its operation regime is closer to the emission peak of YDF at around 1030 nm compared with the previous works 6,7 . Larger emission cross section of YDF in this shorter wavelength range may bring higher power conversion efficiency in the amplification and transmission processes.…”

Section: Resultssupporting

confidence: 51%

All-fiber high repetition rate short pulse generation around 1030 nm

Zhu

Zhang

et al. 2011

SPIE Proceedings

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High repetition rate pulsed fiber laser in 1μm is an attractive and novel source for optical transmission systems, since ytterbium-doped fiber (YDF) has the potential to provide broad gain spectrum and high optical conversion efficiency in this regime. Previous works in this area have explored the wavelength range above 1050 nm. In this paper, we focus more on the shorter wavelength band which is closer to the peak of the emission cross section of YDF at around 1030 nm. A 10-GHz harmonically mode-locked all-fiber laser is demonstrated. A pulse train with a pulsewidth of around 13 ps and wavelength tunable from 1023.5 nm to 1053.3 nm is achieved. The side-mode suppression ratio is more than 50 dB without any stabilization techniques.

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Section: Resultssupporting

confidence: 51%

All-fiber high repetition rate short pulse generation around 1030 nm

Zhu

Zhang

et al. 2011

SPIE Proceedings

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“…The proposed setup seems like a regeneratively mode-locked laser [20], [21] and a coupled optoelectronic oscillator [22], [23] for all of them have an optical fiber loop and an optoeletronic loop and both loops as two oscillators can be coupled through injection locking. However, the proposed system is different from the previous methods: 1) without the opto-electronic loop, the optical fiber loop in the proposed setup can generate two orthogonally polarized SLM due to the PM-PS-FBG, while the previous methods can only generate a unstable CW light wave; 2) coupling between the optical loop and the opto-electronic loop in the proposed setup is achieved through fundamental injection locking instead of harmonic injection locking that is implemented in the previous setup; 3) the frequency of the generated microwave signal in the proposed method can be tuned by simply stretching or heating the PM-PS-FBG, while in the previous methods, it is determined by the electrical filter used in the opto-electronic loop, and usually fixed.…”

Section: Mutual Injection Lockingmentioning

confidence: 99%

Stable and Frequency-Hopping-Free Microwave Generation Based on a Mutually Injection-Locked Optoelectronic Oscillator and a Dual-Wavelength Single-Longitudinal-Mode Fiber Laser

Kong

Yao

2014

J. Lightwave Technol.

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We report a novel method to generate a stable and frequency-hopping-free microwave signal based on a mutually injection-locked dual-wavelength single-longitudinal-mode fiber laser and an optoelectronic oscillator (OEO), with the mutual injection locking realized by sharing an optical path consisting of a polarization modulator and a polarization-maintaining phaseshifted fiber Bragg grating. The two wavelengths from the fiber laser are injected into the OEO to lock the generated microwave signal, while the microwave signal from the OEO is fed back into the fiber laser to injection lock the two wavelengths. Thanks to the mutual injection locking, the operation stability of the fiber laser and the OEO are substantially improved. A microwave signal at 11.8 GHz with a phase noise of −105 dBc/Hz at a 10-kHz offset frequency is generated. A stable operation of the system without frequency shifting and hopping is demonstrated.Index Terms-Erbium doped fiber amplifier, fiber Bragg gratings, fiber laser, injection locking, microwave, optoelectronic oscillator (OEO), phase shift, single longitudinal mode.

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“…Actively mode-locked fiber lasers are stable and controllable because active elements are used inside the laser cavity. Active mode-locking often generates relatively long pulse duration in the picosecond range [7], [8] due to the limited modulation speed of active modulators. To generate subpicosecond optical pulses, the active mode-locking with conventional sinusoidal modulation needs to operate at a high repetition rate of tens of GHz [9].…”

Section: Introductionmentioning

confidence: 99%

Femtosecond Fiber Laser Applying for Cell Fusion

Nguyen

Mizuta

Taguchi

2015

Journal of the Japan Society of Applied Electromagnetics and Me

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We developed an actively mode-locked fiber laser that can generate 295 fs pulses at 9.188 MHz repetition rate. We built up a laser-induced cell fusion, in which the developed femtosecond laser was used as the laser source for both optical tweezers mode and laser scalpel mode, and thus improving cost-effectiveness. The cell fusion system also used a transparent dielectrophoresis chip as the specimen stage to create and manipulate the pearl chain of two or multiple cells for facilitating the cell fusion processes. We successfully developed the first optical tweezers using femtosecond fiber laser operating at 1530 nm, which can trap and transport cells effectively. With this developed system, we obtained the laser-induced fusion of red cabbage protoplasts. We also proposed a experimental cell fusion procedure which allows precisely selective cell fusion at the single-cell level. Therefore, the developed system would benefit basic research in biotechnology and biomedicine.

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A 10 GHz 2.5 ps Regeneratively Mode-Locked Yb Fiber Laser in the 1.1 μm Band

Cited by 7 publications

References 5 publications

All-fiber high repetition rate short pulse generation around 1030 nm

All-fiber high repetition rate short pulse generation around 1030 nm

Stable and Frequency-Hopping-Free Microwave Generation Based on a Mutually Injection-Locked Optoelectronic Oscillator and a Dual-Wavelength Single-Longitudinal-Mode Fiber Laser

Femtosecond Fiber Laser Applying for Cell Fusion

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