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.

Model FL1-02 FL1-08 FL2-12 FL2-20 FL2-SP
Maximum output power 2 W 8 W 12 W 20 W 2 W 1)
Pulse duration 2) < 100 fs < 120 fs < 120 fs < 170 fs 30 … 50 fs 1)
Maximum pulse energy 3) 25 nJ 105 nJ 157 nJ 260 nJ 26 nJ 1)
Repetition rate ≈ 76 MHz 4) ≈ 76 MHz ≈ 76 MHz 5)
Center wavelength 1035 6) ± 10 nm 1030 ± 3 nm 1029 ± 3 nm 1026 ± 2 nm 1040 ± 10 nm
Pulse-to-pulse energy stability 7) RMS deviation 8) < 0.5% over 24 h
Polarization Linear, horizontal
Beam quality TEM00; M2 < 1.2
Beam pointing stability < 10 µrad/°C
Internal 2H generator n/a Optional; conversion efficiency > 30%
Internal attenuator n/a Yes
  1. 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.
  2. Assuming Gaussian pulse shape.
  3. Depends on repetition rate. Approximate values are given for 76 MHz repetition rate.
  4. Other repetition rates are available in the range from 60 to 100 MHz.
  5. Other repetition rates are available in the range from 70 to 80 MHz.
  6. Choice of a particular central wavelength with ±1 nm tolerance is available upon request.
  7. With enabled power-lock, under stable environment.
  8. Normalized to average pulse energy, NRMSD.
Model FL1-02 FL1-08 FL2-12 FL2-20 FL2-SP
Laser head (L × W × H) 430 × 195 × 114 mm 542 × 322 × 146 mm
Power supply and chiller rack (L × W × H) 642 × 553 × 540 mm 642 × 553 × 673 mm
Chiller Different options available. Contact sales@lightcon.com
Model FL1-02 FL1-08 FL2-12 FL2-20 FL2-SP
Operating temperature 15 – 30 ºC (air conditioning recommended)
Relative humidity < 80% (non condensing)
Electrical requirements 100 V AC, 7 A – 240 V AC, 3 A; 50 – 60 Hz 100 V AC, 12 A – 240 V AC, 5 A; 50 – 60 Hz
Rated power 200 W
Power consumption 100 W 150 W
Power consumption (chiller) 200 W 800 W 200 W

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).

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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Product datasheet.

Rev. 21/04/2021. Size 505 KB.

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