Repetition-rate multiplication in actively mode-locked fiber lasers by higher-order FM mode locking using a high-finesse Fabry–Perot filter

1998 ◽  
Vol 73 (10) ◽  
pp. 1311-1313 ◽  
Author(s):  
Kazi Sarwar Abedin ◽  
Noriaki Onodera ◽  
Masaharu Hyodo
Keyword(s):  
Repetition Rate ◽  
Fiber Lasers ◽  
Mode Locking ◽  
Higher Order ◽  
Fabry Perot ◽  
High Finesse

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.

scholarly journals Mode-locking evolution in ring fiber lasers with tunable repetition rate

2017 ◽  
Vol 25 (18) ◽  
pp. 21180 ◽  
Author(s):  
D. A. Korobko ◽  
A. A. Fotiadi ◽  
I. O. Zolotovskii
Keyword(s):  
Repetition Rate ◽  
Fiber Lasers ◽  
Mode Locking

scholarly journals Quantum Noise in a Fabry-Perot Interferometer Including the Influence of Diffraction Loss of Light

Galaxies ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 9
Author(s):  
Shoki Iwaguchi ◽  
Tomohiro Ishikawa ◽  
Masaki Ando ◽  
Yuta Michimura ◽  
Kentaro Komori ◽  
...  
Keyword(s):  
Gravitational Waves ◽  
Quantum Noise ◽  
Higher Order ◽  
Diffraction Loss ◽  
Optical Cavities ◽  
Higher Order Modes ◽  
Fabry Perot ◽  
Primordial Gravitational Waves ◽  
Mode Loss ◽  
High Finesse

The DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is designed to detect gravitational waves at frequencies between 0.1 and 10 Hz. In this frequency band, one of the most important science targets is the detection of primordial gravitational waves. DECIGO plans to use a space interferometer with optical cavities to increase its sensitivity. For evaluating its sensitivity, diffraction of the laser light has to be adequately considered. There are two kinds of diffraction loss: leakage loss outside the mirror and higher-order mode loss. These effects are treated differently inside and outside of the Fabry-Perot (FP) cavity. We estimated them under the conditions that the FP cavity has a relatively high finesse and the higher-order modes do not resonate. As a result, we found that the effects can be represented as a reduction of the effective finesse of the cavity with regard to quantum noise. This result is useful for optimization of the design of DECIGO. This method is also applicable to any FP cavities with a relatively small beam cut and the finesse sufficiently higher than 1.

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