High Brightness 1.5 μm Pulsed Fiber Laser for Lidar: From Fibers to Systems

Canat, Guillaume; Lombard, Laurent; Dolfi, Agnès; Valla, Matthieu; Planchat, Christophe; Augère, Béatrice; Bourdon, P.; Jolivet, V.; Besson, Claudine; Jaouën, Yves; Jetschke, Sylvia; Unger, S.; Kirchhof, J.; Gueorguiev, E.; Vitre, C.

doi:10.1080/01468030802269431

Cited by 12 publications

(5 citation statements)

References 14 publications

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“…The light detection and ranging (LiDAR) system, converting distance measurements into signal pulses, has promising applications in driverless vehicles, atmosphere observing, etc. The optical sources of LiDAR can be solid-state lasers [1,2], fiber lasers [3,4] and semiconductor lasers [5][6][7], and are expected to have high peak power [8], high repetition frequency [9], short pulse width [9], and low beam divergence angle [10]. Compared with solid-state lasers and fiber lasers, the semiconductor lasers show a low cost, small volume, easy integration, and the highest conversion efficiency among these laser sources.…”

Section: Introductionmentioning

confidence: 99%

Photonic Crystal Surface Emitting Laser Operating in Pulse-Periodic Regime with Ultralow Divergence Angle

et al. 2021

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The nanosecond-level pulse-operation characteristics of photonic-crystal surface-emitting lasers (PCSELs) with ultralow divergence were investigated in detail. We demonstrate a maximum peak output power of 14 W for a current pulse width of 9 ns, which is about 28 times the saturated power under continuous wave (CW) operation. The full width at half maximum (FWHM) of the optical response pulse is about 3 ns wider than the current pulse. The maximum repetition frequency reaches 400 kHz at 10 A without significant degradation of output power while the value is 100 kHz at 40 A. Moreover, the multimode behavior of the PCSEL at a high peak current was analyzed.

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Section: Introductionmentioning

confidence: 99%

Photonic Crystal Surface Emitting Laser Operating in Pulse-Periodic Regime with Ultralow Divergence Angle

et al. 2021

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“…Recently, cladding pumped EYDF amplifiers (EYDFAs) have attracted considerable attention to achieve high power levels in line with the requirements of applications like LIDAR [20,21], femtosecond pulse amplification [22], and space communications [23,24]. However, experimental details on the performance evaluation of EYDFAs compatible with WDM signals remain scarce in the literature.…”

Section: Introductionmentioning

confidence: 99%

Broadband amplification of high power 40 Gb/s channels using multimode Er-Yb doped fiber

Ahmad¹,

Châtigny²,

Rochette³

2010

Opt. Express

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Broadband amplification of several high power communication channels is demonstrated using a multimode Erbium-Ytterbium doped fiber (EYDF) amplifier. The multimode feature of this amplifier aims at simultaneously enabling wide gain bandwidth and high output power. The amplifier provides a gain bandwidth spanning over the 1535.0 nm-1565.8 nm band. The amplifier also provides a high output power of >30.2 dBm, with ± 2.4 dB natural gain flatness over the bandwidth of interest. The performance of the amplifier is assessed in a 40 Gb/s WDM system, featuring no trace of modal dispersion in the eye diagram and a low power penalty (< 0.4 dB) on the bit error ratio (BER).

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“…Pulsed Erbium and Erbium-Ytterbium co-Doped Fiber (EYDF) lasers /amplifiers are very attractive candidates for many long-range applications [1][2][3] like ranging, remote sensing, 3D imaging, and LIDAR, etc. They are not only eye-safe but have high atmospheric transparency also.…”

Section: Introductionmentioning

confidence: 99%

Estimation and Management of Performance Limiting Factors in the Development of 1 kW Peak Power Pulsed Fiber MOPA at 1550 nm

et al. 2021

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An all-fiber three-stage master oscillator power amplifier (MOPA), based on Erbium and Erbium-Ytterbium co-doped fibers, has been designed and developed. The performance of such a laser is primarily limited by amplified spontaneous emission (ASE), Yb bottlenecking, and non-linear effects. Other important factors, that need to be considered towards performance improvement, are fiber bend diameter and heat generated in the fiber. This paper describes the methodology for the estimation and management of these limiting factors for each amplifier stage. The work presented here is limited to the fibers which are commercially easily available, unlike customised Yb- free large mode area (LMA) Erbium-doped fibers, where very high peak and average powers are being reported due to the absence of Yb ASE. Presented experimental results and discussion shall be beneficial for the fiber laser amplifier designers. With suitable management, 1 kW peak power pulses of 30 ns duration at 200 kHz repetition rate have been achieved with 30 % optical efficiency. The collimated output of 6 W average power (limited by Yb ASE) with high beam quality (M2 ≈ 1.6) at 1550 nm can be employed for a variety of applications. By adding additional amplifier stages, power can be scaled further.

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High Brightness 1.5 μm Pulsed Fiber Laser for Lidar: From Fibers to Systems

Cited by 12 publications

References 14 publications

Photonic Crystal Surface Emitting Laser Operating in Pulse-Periodic Regime with Ultralow Divergence Angle

Photonic Crystal Surface Emitting Laser Operating in Pulse-Periodic Regime with Ultralow Divergence Angle

Broadband amplification of high power 40 Gb/s channels using multimode Er-Yb doped fiber

Estimation and Management of Performance Limiting Factors in the Development of 1 kW Peak Power Pulsed Fiber MOPA at 1550 nm

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