65 W ZnGeP_2 OPO directly pumped by a Q-switched Tm^3+-doped single-oscillator fiber laser

Kieleck, Christelle; Berrou, Antoine; Donelan, Brenda; Cadier, Benoît; Robin, Thierry; Eichhorn, Marc

doi:10.1364/ol.40.001101

Cited by 52 publications

(20 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Direct fiber pumping of ZGP mid-IR OPO using pump lasers built in a master oscillator power-amplifier configuration has been already successfully demonstrated reaching maximum 3 W of mid-IR output power [16], [17] and [18]. We have recently reported (to the best of our knowledge) the highest ever demonstrated mid-IR output power, 6.5 W, from a Tm 3+ -doped fiber single oscillator laser pumped ZGP OPO [9] and the first OP-GaAs OPO pumped by a 2.09 μm Q-switched Tm 3+ ,Ho 3+ :silica fiber laser [10], [11].…”

Section: Nonlinear Crystals Direct Fiber-pumpingmentioning

confidence: 86%

See 1 more Smart Citation

2 μm and mid-IR fiber-laser-based sources for OCM

et al. 2014

View full text Add to dashboard Cite

This paper describes new laser sources and non linear conversion setups for 2 µm and mid-IR generation based on fiber technologies developed at ISL. Especially for jamming heat-seeking missiles, these novel designs allow to propose future compact, efficient and integrable laser systems. The specialty of the ISL technology lies in the use of single 2 µm fiber laser oscillators, which deliver the full output peak power to pump optical parametric oscillators or nonlinear fibers. No multi-stage amplifiers at 2 μm or 1.55 μm are necessary to efficiently pump non linear converters to obtained useful energies in the mid-infrared spectral range. This technology leads to efficient, simple and promising setups to be implemented in flying platforms.The best results achieved in continuous-wave (CW), Q-switched (QS) and mode-locked (ML) regimes with fiber lasers based on Tm 3+ -doped and Tm 3+ ,Ho 3+ -codoped fibers are presented. Up to 70 W of average power was achieved around 2 µm with a Tm 3+ -doped fiber in CW regime. In ML regimes, at a repetition rate of 66 MHz, 50 W of average power was reached. In QS regime, up to 32 W of average power was generated around 2 µm with a polarization maintaining Tm 3+ -doped fiber at a repetition rate of 40 kHz. With a Tm 3+ ,Ho 3+ -codoped fiber, up to 25 W of average power was obtained around 2070 nm in Q-switched regime. For example at 50 kHz, the pulse duration was around 50 ns at the maximum output power. The M² was estimated to be less than 1.2.The emission from QS fiber lasers was used to directly pump OP-GaAs and ZGP OPOs. For example, in band II, up to 6.5 W of averaged power was recently obtained from a ZGP OPO pumped by a Tm 3+ -doped fiber laser. At 40 kHz repetition rate, the pulse duration was around 65 ns at the maximum output power. For 3 W of averaged output power, the M² of the signal beam was estimated to be less than 2.1 and less than 2.4 for the idler beam.Using a mode-locked Tm 3+ -doped fiber laser to pump a ZBLAN fiber at an injection efficiency of ∼60%, an overall supercontinuum power of up to 2.2 W from a pump power of 5.4 W was achieved. The power above 2650 nm was 0.7 W.

show abstract

Section: Nonlinear Crystals Direct Fiber-pumpingmentioning

confidence: 86%

“…For example, in band II, up to 6.5 W of averaged power was obtained from a ZGP OPO pumped by a Tm 3+ -doped fiber laser [9]. At 40 kHz repetition rate, the pulse duration was around 65 ns at the maximum output power.…”

mentioning

confidence: 99%

2 μm and mid-IR fiber-laser-based sources for OCM

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The most challenging component of the system is the efficient 2 µm pulsed laser. Both bulk Ho lasers and Ho fiber lasers allowing Q-switched operation with high pulse energies can be suitable for pumping a ZGP OPO or OPA [12][13][14] . The second challenge is to reduce the effect of the feedback from the OPO or the OPA into the pump laser and the risk of the damage to the mirror or medium coating and the nonlinear medium.…”

Section: Introductionmentioning

confidence: 99%

High-power long-wave infrared laser based on polarization beam coupling technique

Shen

Qian

Duan

et al. 2020

High Pow Laser Sci Eng

View full text Add to dashboard Cite

We demonstrated a high-power long-wave infrared laser based on a polarization beam coupling technique. An average output power at $8.3~\unicode[STIX]{x03BC}\text{m}$ of 7.0 W was achieved at a maximum available pump power of 107.6 W, corresponding to an optical-to-optical conversion of 6.5%. The coupling efficiency of the polarization coupling system was calculated to be approximately 97.2%. With idler single resonance operation, a good beam quality factor of ${\sim}1.8$ combined with an output wavelength of $8.3~\unicode[STIX]{x03BC}\text{m}$ was obtained at the maximum output power.

show abstract

“…The output power and pulse energy in passive modulation techniques from single oscillators are limited, on one hand, to a certain output power level for stable operation, and on the other hand, by the damage threshold of the available modulators. Single oscillator actively Qswitched fiber sources emitting around 2 µm have been already successfully demonstrated by directly pump Tm 3+ -doped or Tm 3+ , Ho 3+ -codoped silica fibers with 793 nm high power diodes [14][15][16][17]. In [14][15][16], nanosecond pulses around 2 µm have been generated at tens of kilohertz of repetition rates, with average output powers reaching a maximum of 25 W. Further power scaling of these fiber lasers were limited by thermal-induced damaging observed on both uncooled fiber tips.…”

Section: Introductionmentioning

confidence: 99%

“…Single oscillator actively Qswitched fiber sources emitting around 2 µm have been already successfully demonstrated by directly pump Tm 3+ -doped or Tm 3+ , Ho 3+ -codoped silica fibers with 793 nm high power diodes [14][15][16][17]. In [14][15][16], nanosecond pulses around 2 µm have been generated at tens of kilohertz of repetition rates, with average output powers reaching a maximum of 25 W. Further power scaling of these fiber lasers were limited by thermal-induced damaging observed on both uncooled fiber tips. Stutzki et al [17] demonstrated a 15 ns single pulse operation with a maximum average output power of 39 W at 14 kHz repetition rate around 1.9 µm.…”

Section: Introductionmentioning

confidence: 99%

55 W actively Q-switched single oscillator Tm³⁺, Ho³⁺-codoped silica polarization maintaining 209 µm fiber laser

et al. 2019

Self Cite

View full text Add to dashboard Cite

A bidirectional 793 nm diode-pumped actively Q-switched Tm 3+ , Ho 3+-codoped silica polarization-maintaining (PM) double-clad (DC) fiber laser is reported. With this fiber laser, 55 W of average output power with 100 ns pulse width at 200 kHz repetition rate and 2.09 µm wavelength is obtained. The pump power injection with end-caps fusion-spliced on fiber tips provides good power stability (< 1.1%) and beam quality factors (M 2 < 1.7). The fiber laser output beam polarization factor is 97.5%. At 55 W, no thermal-induced damage is observed on any optical element, and power scaling of the laser is only pump-power-limited in the range of the total available pump power (180 W).

show abstract

65 W ZnGeP_2 OPO directly pumped by a Q-switched Tm^3+-doped single-oscillator fiber laser

Cited by 52 publications

References 11 publications

2 μm and mid-IR fiber-laser-based sources for OCM

2 μm and mid-IR fiber-laser-based sources for OCM

High-power long-wave infrared laser based on polarization beam coupling technique

55 W actively Q-switched single oscillator Tm³⁺, Ho³⁺-codoped silica polarization maintaining 209 µm fiber laser

Contact Info

Product

Resources

About

65 W ZnGeP_2 OPO directly pumped by a Q-switched Tm^3+-doped single-oscillator fiber laser

Cited by 52 publications

References 11 publications

2 μm and mid-IR fiber-laser-based sources for OCM

2 μm and mid-IR fiber-laser-based sources for OCM

High-power long-wave infrared laser based on polarization beam coupling technique

55 W actively Q-switched single oscillator Tm3+, Ho3+-codoped silica polarization maintaining 209 µm fiber laser

Contact Info

Product

Resources

About

55 W actively Q-switched single oscillator Tm³⁺, Ho³⁺-codoped silica polarization maintaining 209 µm fiber laser