High-power semiconductor lasers at eye-safe wavelengths

Osowski, M.L.; Gewirtz, Yossi; Lammert, R.M.; Oh, S.; Panja, C.; Elarde, V.C.; Vaissie, Laurent; Patel, Falgun; Ungar, J.

doi:10.1117/12.818067

Cited by 9 publications

(8 citation statements)

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“…They have demonstrated 10 W at 977 nm in cw together with a nearly diffraction limited beam and narrow emission bandwidth [3]. At an eye-safe wavelength close to 1.5 μm, 700 mW cw from a single-mode fiber module and 50 ns pulses with 10 W peak power have been reported [4].…”

Section: Introductionmentioning

confidence: 96%

High-peak-power pulse generation from a monolithic master oscillator power amplifier at 15 μm

et al. 2012

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We present an experimental study on the generation of high-peak-power short optical pulses from a fully integrated master-oscillator power-amplifier emitting at 1.5 μm. High-peak-power (2.7 W) optical pulses with short duration (100 ps) have been generated by gain switching the master oscillator under optimized driving conditions. The static and dynamic characteristics of the device have been studied as a function of the driving conditions. The ripples appearing in the power-current characteristics under cw conditions have been attributed to mode hopping between the master oscillator resonant mode and the Fabry-Perot modes of the entire device cavity. Although compound cavity effects have been evidenced to affect the static and dynamic performance of the device, we have demonstrated that trains of single-mode short optical pulses at gigahertz frequencies can be conveniently generated in these devices.

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Section: Introductionmentioning

confidence: 96%

High-peak-power pulse generation from a monolithic master oscillator power amplifier at 15 μm

et al. 2012

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“…The device is p-up mounted onto a C-mount. More details about devices from this manufacturer can be found in [9].…”

Section: Methodsmentioning

confidence: 99%

Emission regimes in a distributed feedback tapered master-oscillator power-amplifier at 1.5 μm

et al. 2014

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Integrated master-oscillator power amplifiers driven under steady-state injection conditions are known to show a complex dynamics resulting in a variety of emission regimes. We present experimental results on the emission characteristics of a 1.5 urn distributed feedback tapered master-oscillator power-amplifier in a wide range of steady-state injection conditions, showing different dynamic behaviors. The study combines the optical and radio-frequency spectra recorded under different levels of injected current into the master oscillator and the power amplifier sections. Under low injection current of the master oscillator the correlation between the optical and radio-frequency spectral maps allows to identify operation regimes in which the device emission arises from either the master oscillator mode or from the compound cavity modes allowed by the residual reflectance of the amplifier front facet. The quasi-periodic occurrence of these emission regimes as a function of the amplifier current is interpreted in terms of a thermally tuned competition between the modes of the master oscillator and the compound cavity modes. Under high injection current of the masteroscillator, two different regimes alternate quasi-periodically as a function of the injected current in the power amplifier: a stable regime with a single mode emission at the master oscillator frequency, and an unstable and complex self-pulsating regime showing strong peaks in the radio-frequency spectra as well as multiple frequencies in the optical spectra.

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“…We have investigated the Master Oscillator Power Amplifier (MOP A) architecture which usually consists of two sections, a distributed Bragg reflector (DBR) or distributed feedback (DFB) laser acting as a master oscillator and a power semiconductor optical amplifier (SOA). The MOPA architecture seems the more convenient solution to obtain both high power and single-mode operation [1], [2]. In that case, the SOA is often flared to increase its saturation power.…”

Section: Design Of the Structurementioning

confidence: 99%

Monolithic integration of a high power semiconductor Master Oscillator Power Amplifier

Faugeron

Vilera

Pérez-Serrano

et al. 2015

2015 IEEE Photonics Conference (IPC)

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High-power semiconductor lasers at eye-safe wavelengths

Cited by 9 publications

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High-peak-power pulse generation from a monolithic master oscillator power amplifier at 15 μm

High-peak-power pulse generation from a monolithic master oscillator power amplifier at 15 μm

Emission regimes in a distributed feedback tapered master-oscillator power-amplifier at 1.5 μm

Monolithic integration of a high power semiconductor Master Oscillator Power Amplifier

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