Mesoporous Carbon Nanospheres as Broadband Saturable Absorbers for Pulsed Laser Generation,Advanced Optical Materials

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Mesoporous Carbon Nanospheres as Broadband Saturable Absorbers for Pulsed Laser Generation
Advanced Optical Materials ( IF 8.0 ) Pub Date : 2018-06-10 , DOI: 10.1002/adom.201800606
Fang Wang _{1,

2} , Ying Jing ₁ , Zhe Kang _{1,

3} , Libo Zhou ₁ , Zhenrui Li ₁ , Mingyi Liu ₁ , Tao Wang ₁ , Chuanfei Yao ₁ , Haobin Chen ₁ , Weiping Qin ₁ , Zhen-An Qiao ₁ , Guanshi Qin ₁ , Changfeng Wu ₂

Affiliation

Broadband pulsed laser generation is demonstrated by using mesoporous carbon nanospheres (MCNs) as saturable absorbers (SAs). The MCNs are prepared by a “silica‐assisted” method, and then mixed with sodium carboxymethylcellulose (NaCMC) to form the MCNs film. The film not only shows strong absorption from visible to mid‐infrared spectral region, but also possesses the nonlinear saturable absorption properties. As the MCNs film is inserted into the laser cavity, a mode‐locked laser at 1 µm and Q‐switched lasers at 1.56 and 2 µm are realized, respectively. In addition, by depositing the MCNs onto tapered fiber as an SA, a mode‐locked fiber laser at 2 µm is also demonstrated. The results show that MCNs are promising SA material for broadband pulsed laser generation.

中文翻译：

介孔碳纳米球作为脉冲激光产生的宽带饱和吸收剂

通过使用中孔碳纳米球（MCN）作为可饱和吸收剂（SA）证明了宽带脉冲激光的产生。通过“二氧化硅辅助”方法制备MCN，然后将其与羧甲基纤维素钠（NaCMC）混合以形成MCN膜。该膜不仅在可见光到中红外光谱区域显示出强吸收性，而且还具有非线性的饱和吸收特性。当将MCNs薄膜插入激光腔时，分别实现了1 µm的锁模激光器和1.56和2 µm的Q开关激光器。此外，通过将MCN作为SA沉积到锥形光纤上，还展示了2 µm的锁模光纤激光器。结果表明，多氯化萘是有希望的SA材料，用于宽带脉冲激光的产生。

更新日期：2018-06-10

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