TY - JOUR

T1 - Gigahertz Repetition-Rate Pulse Generation in Fiber Lasers Based on Semiconductor Optical Amplifiers

AU - Ivanenko, A. A.

AU - Smirnov, S. V.

AU - Rybak, A.

AU - Idyrysov, N.

AU - Bednyakova, A. E.

N1 - Ivanenko, A.A., Smirnov, S.V., Rybak, A. et al. Gigahertz Repetition-Rate Pulse Generation in Fiber Lasers Based on Semiconductor Optical Amplifiers. Bull. Lebedev Phys. Inst. 52 (Suppl 11), S1095–S1103 (2025). https://doi.org/10.3103/S1068335625604868 This work was supported by the Russian Science Foundation (grant no. 24-12-00314, https://rscf.ru/project/24- 12-00314/).

PY - 2026/2/27

Y1 - 2026/2/27

N2 - The latest advances in utilizing a novel method for generating gigahertz-repetition-rate pulses in fiber lasers based on semiconductor optical amplifiers are reviewed. This method, based on self-sustained cross-gain modulation in lasers with negative optical feedback, does not require active modulation or the use of saturable absorbers and provides stable generation of subnanosecond pulses. The applicability of the approach has been demonstrated experimentally at repetition rates up to 9.77 GHz. The possibility of broad wavelength tuning in a wide range from 1480 to 1556 nm with preserved pulsed operation mode and control of pulse repetition frequency from 1.85 to 6.2 GHz is also demonstrated. The physical principles underlying the method and its advantages for practical applications in telecommunications, metrology, and spectroscopy are discussed.

AB - The latest advances in utilizing a novel method for generating gigahertz-repetition-rate pulses in fiber lasers based on semiconductor optical amplifiers are reviewed. This method, based on self-sustained cross-gain modulation in lasers with negative optical feedback, does not require active modulation or the use of saturable absorbers and provides stable generation of subnanosecond pulses. The applicability of the approach has been demonstrated experimentally at repetition rates up to 9.77 GHz. The possibility of broad wavelength tuning in a wide range from 1480 to 1556 nm with preserved pulsed operation mode and control of pulse repetition frequency from 1.85 to 6.2 GHz is also demonstrated. The physical principles underlying the method and its advantages for practical applications in telecommunications, metrology, and spectroscopy are discussed.

KW - cross-gain modulation

KW - fiber laser

KW - negative optical feedback

KW - semiconductor optical amplifier

UR - https://www.mendeley.com/catalogue/c28057cc-6b86-3bcd-9ed9-049ca96c79f8/

UR - https://www.scopus.com/pages/publications/105031526314

U2 - 10.3103/S1068335625604868

DO - 10.3103/S1068335625604868

M3 - Article

VL - 52

SP - S1095-S1103

JO - Bulletin of the Lebedev Physics Institute

JF - Bulletin of the Lebedev Physics Institute

SN - 1068-3356

IS - Suppl 11

ER -