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High peak-power picosecond pulse generation at 1.26 μm using a quantum-dot-based externalcavity mode-locked laser and tapered optical amplifier

机译:使用基于量子点的外腔锁模激光器和锥形光放大器在1.26μm处产生高峰值功率皮秒脉冲

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摘要

In this paper, we present the generation of high peak-power picosecond optical pulses in the 1.26 µm spectral band from a repetitionrate- tunable quantum-dot external-cavity passively mode-locked laser (QDECMLL), amplified by a tapered quantum-dot semiconductor optical amplifier (QD-SOA). The laser emission wavelength was controlled through a chirped volume Bragg grating which was used as an external cavity output coupler. An average power of 208.2 mW, pulse energy of 321 pJ, and peak power of 30.3 W were achieved. Preliminary nonlinear imaging investigations indicate that this system is promising as a high peakpower pulsed light source for nonlinear bio-imaging applications across the 1.0 µm - 1.3 µm spectral range.
机译:在本文中,我们介绍了由可重复调谐的量子点外腔无源锁模激光器(QDECMLL)在1.26 µm光谱带中产生的高峰值功率皮秒光脉冲的产生,并通过锥形量子点半导体对其进行了放大光放大器(QD-SOA)。通过a体积的布拉格光栅控制激光发射波长,该光栅用作外腔输出耦合器。平均功率为208.2 mW,脉冲能量为321 pJ,峰值功率为30.3W。初步的非线性成像研究表明,该系统有望成为适用于1.0 µm-1.3 µm光谱范围内非线性生物成像应用的高峰值功率脉冲光源。

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