scholarly journals Passive mode locking of ytterbium- and erbium-doped all-fiber lasers using graphene oxide saturable absorbers

2014 ◽  
Vol 22 (11) ◽  
pp. 12880 ◽  
Author(s):  
Hou-Ren Chen ◽  
Chih-Ya Tsai ◽  
Hsin-Ming Cheng ◽  
Kuei-Huei Lin ◽  
Wen-Feng Hsieh
Keyword(s):  
Graphene Oxide ◽  
Fiber Lasers ◽  
Mode Locking ◽  
Passive Mode ◽  
Saturable Absorbers ◽  
Erbium Doped

Carbon Nanomaterials Based Saturable Absorbers for Ultrafast Passive Mode-Locking of Fiber Lasers

2020 ◽  
Vol 16 (3) ◽  
pp. 441-457
Author(s):  
Chih-Hsien Cheng ◽  
Gong-Ru Lin
Keyword(s):  
Saturable Absorber ◽  
Fiber Lasers ◽  
Carbon Nanomaterials ◽  
Modulation Depth ◽  
Optical Nonlinearity ◽  
Mode Locking ◽  
Industrial Applications ◽  
Passive Mode ◽  
Saturable Absorbers ◽  
Saturation Intensity

This paper emphasizes on overviewing the developing progress of the state-of-the-art carbon nanomaterial-based saturable absorbers for passively mode-locked fiber lasers, including carbon nanotube (CNT), graphene, graphite and other carbon nanomaterials. With reviewing the performances of these proposed candidates, the characteristic parameters required for initiating and stabilizing the passive mode-locked fiber lasers are summarized for comparison and discussion. At first, the basic characteristics such as saturation intensity and self-amplitude-modulation (SAM) coefficients of the CNT material with different-wall types are discussed in detail. In comparison, the single-wall CNT possesses optical nonlinearity better than double-wall CNT, whereas the doublewall CNT exhibits wavelength tenability and the multi-wall CNT fails to initiate mode-locking. Subsequently, different graphene saturable absorbers with slightly changing their optical properties made by various fabrication technologies are introduced to take over the role of typical CNT saturable absorber. The detailed analyses on graphene saturable absorber for developing various types of passively mode-locked fiber lasers are overviewed. At last, other new-aspect graphite and carbon nanomaterials related saturable absorbers have emerged because they reveal similar optical nonlinearity with graphene but exhibit cost-effectiveness and easy-production. When changing saturable absorber from graphene to other carbon nanomaterials, the modulation depth is decreased but the saturation intensity is concurrently enlarged because of the disordered structure with increased interlayer spacing and reduced graphene content. At the current stage, selecting carbon nanomaterials with high nonlinear absorbance and low saturated intensity for large SAM coefficient is the golden rule for passively mode-locked the fiber lasers in future academic and industrial applications.

Passively mode-locked picosecond erbium-doped fiber lasers using multiple quantum well saturable absorbers

1998 ◽  
Author(s):  
Michael J. Hayduk ◽  
Mark F. Krol ◽  
Clifford R. Pollock ◽  
Kenneth J. Teegarden ◽  
Gary W. Wicks ◽  
...  
Keyword(s):  
Quantum Well ◽  
Fiber Lasers ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
Saturable Absorbers ◽  
Erbium Doped

scholarly journals Environmentally stable Er-fiber mode-locked pulse generation and amplification by spectrally filtered and phase-biased nonlinear amplifying long-loop mirror

2019 ◽  
Vol 7 ◽  
Author(s):  
Zhengru Guo ◽  
Qiang Hao ◽  
Junsong Peng ◽  
Heping Zeng
Keyword(s):  
Repetition Rate ◽  
Fiber Lasers ◽  
Fiber Amplifier ◽  
Mode Locking ◽  
Pulse Generation ◽  
Erbium Doped ◽  
Polarization Maintaining Fiber ◽  
Fiber Mode ◽  
Polarization Maintaining ◽  
Loop Mirror

We report on environmentally stable long-cavity ultrashort erbium-doped fiber lasers, which self-start mode-locking at quite low thresholds by using spectrally filtered and phase-biased nonlinear amplifying long-loop mirrors. By employing 100-m polarization-maintaining fiber (PMF) in the nonlinear loop, the fundamental repetition rate reaches 1.84 MHz and no practical limitation is found to further decrease the repetition rate. The filter used in the long loop not only suppresses Kelly sidebands of the solitons, but also eliminates the amplified spontaneous emission which exists widely in low-repetition-rate ultrafast fiber lasers. The bandwidth of the filter is optimized by using a numerical model. The laser emits approximately 3-ps pulses with an energy of 17.4 pJ, which is further boosted to $1.5~\unicode[STIX]{x03BC}\text{J}$ by using a fiber amplifier.

Nonlinear fiber external cavity mode locking of erbium-doped fiber lasers

1993 ◽  
Vol 10 (7) ◽  
pp. 1166 ◽  
Author(s):  
T. Geisler ◽  
K. A. Shore ◽  
M. P. Soerensen ◽  
J. Mørk ◽  
J. Mark ◽  
...  
Keyword(s):  
Fiber Lasers ◽  
Cavity Mode ◽  
External Cavity ◽  
Mode Locking ◽  
Erbium Doped ◽  
Nonlinear Fiber

Passive mode locking in erbium-ytterbium fiber lasers

1999 ◽  
Author(s):  
Serey Thai ◽  
Michael J. Hayduk
Keyword(s):  
Fiber Lasers ◽  
Mode Locking ◽  
Passive Mode
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