Femtosecond Oscillators FLINT Oscillators
- < 40 fs pulse duration
- Up to 260 nJ pulse energy
- Up to 20 W output power
- 76 MHz repetition rate
- No amplified spontaneous emission
- Industrial-grade design
- Optional automated second harmonic generator
- Optional CEP stabilization
- Optional repetition rate locking to an external source
Features
- < 40 fs pulse duration
- Up to 260 nJ pulse energy
- Up to 20 W output power
- 76 MHz repetition rate
- No amplified spontaneous emission
- Industrial-grade design
- Optional automated second harmonic generator
- Optional CEP stabilization
- Optional repetition rate locking to an external source
FLINT oscillators are based on an Yb crystal pumped by a high‑brightness laser diodes. Generation of femtosecond pulses is provided by Kerr lens mode-locking. Once started, mode-locking remains stable over a long period and is immune to minor mechanical impact. Oscillator cavity length can be adjusted using an optional piezo actuator. FLINT oscillators can also be equipped with carrier-envelope phase (CEP) stabilization and repetition rate locking to an external source.
- Maximum output power and pulse energy depends on the chosen pulse duration, e.g., < 50 fs – 2 W, 26 nJ, < 40 fs – 1 W, 13 nJ.
- Assuming Gaussian pulse shape.
- Depends on repetition rate. Approximate values are given for 76 MHz repetition rate.
- Other repetition rates are available in the range from 60 to 100 MHz.
- Other repetition rates are available in the range from 70 to 80 MHz.
- Choice of a particular central wavelength with ±1 nm tolerance is available upon request.
- With enabled power-lock, under stable environment.
- Normalized to average pulse energy, NRMSD.
FLINT oscillators equipped with an automated second harmonic generator (HG) provide a selection of fundamental (1035 nm) or second harmonic (517 nm) outputs using software control. In case fundamental and second harmonic outputs are required simultaneously, then HIRO harmonic generator is the solution.
FLINT oscillators can be equipped with feedback electronics for carrier-envelope phase (CEP) stabilization of the output pulses. The carrier-envelope offset (CEO) of the oscillator is actively locked to 1/4th of the repetition rate with a <100 mrad standard deviation.
FLINT oscillators are customizable for repetition rate locking applications. Coupled with the necessary feedback electronics, the repetition rate can be synchronized to an external RF source using the two piezo stages installed inside the cavity. The repetition rate locking system can assure an integrated timing jitter of less than 200 fs for RF reference frequencies larger than 500 MHz. Continuous phase shifting is available on request.
Compact millijoule Yb3+:CaF2 laser with 162 fs pulses
M. Loeser, C. Bernert, D. Albach, K. Zeil, U. Schramm, and M. Siebold, Optics Express 6 (29), 9199 (2021).
Influence of the piezoelectric ringing on the polarisation contrast of the KRTP Pockels cell in the modulation frequency range up to 10 MHz
D. Samsonas, D. Petrulionis, D. Grigaitis, and M. Vengris, in Components and Packaging for Laser Systems VII, A. L. Glebov, and P. O. Leisher, eds. (SPIE, 2021).
Cascaded nonlinearities in high-power femtosecond optical parametric oscillator
I. Stasevičius, G. Martynaitis, and M. Vengris, Journal of the Optical Society of America B 3 (37), 721 (2020).
Cascaded nonlinearity induced spatial domain effects in a high power femtosecond optical parametric oscillator
I. Stasevičius, and M. Vengris, Optics Express 22 (28), 33490 (2020).
Controlled soliton formation in a femtosecond optical parametric oscillator with positive group delay dispersion
I. Stasevičius, and M. Vengris, Journal of the Optical Society of America B 10 (37), 2956 (2020).
Exploiting optical nonlinearities for group delay dispersion compensation in femtosecond optical parametric oscillator
I. Stasevicius, and M. Vengris, Optics Express (2020).
Optimizing Performance and Operational Stability of CsPbI3 Quantum-Dot-Based Light-Emitting Diodes by Interface Engineering
K. M. M. Salim, E. Hassanabadi, S. Masi, A. F. Gualdrón‑Reyes, M. Franckevicius, A. Devižis, V. Gulbinas, A. Fakharuddin, and I. Mora‑Seró, ACS Applied Electronic Materials 8 (2), 2525-2534 (2020).
Characteristics of optical parametric oscillator synchronously pumped by Yb:KGW laser and based on periodically poled potassium titanyl phosphate crystal
J. Vengelis, A. Tumas, I. Pipinytė, M. Kuliešaitė, V. Tamulienė, V. Jarutis, R. Grigonis, and V. Sirutkaitis, Optics Communications 410, 774-781 (2018).
Performance demonstration of the PEnELOPE main amplifier HEPA~I using broadband nanosecond pulses
D. Albach, M. Loeser, M. Siebold, and U. Schramm, High Power Laser Science and Engineering 7 (2018).
Development of simple and robust femtosecond optical parametric oscillator for multiphoton imaging
I. Stasevičius, M. Vengris, and R. Danielius, in Multiphoton Microscopy in the Biomedical Sciences XVII, A. Periasamy, P. T. C. So et al., eds. (SPIE, 2017).
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