Mesoporous Carbon Nanospheres as Broadband Saturable Absorbers for Pulsed Laser Generation. Issue 16 (10th June 2018)

• Record Type: Journal Article
• Authors: Wang, Fang; Jing, Ying; Kang, Zhe; Zhou, Libo; Li, Zhenrui; Liu, Mingyi; Wang, Tao; Yao, Chuanfei; Chen, Haobin; Qin, Weiping; Qiao, Zhen‐An; Qin, Guanshi; Wu, Changfeng
• Is Part Of: Advanced optical materials. Volume 6:Issue 16(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-06-10
• Subjects: mesoporous carbon nanospheres -- mode‐locked lasers -- pulsed laser generation -- Q‐switched lasers -- saturable absorbers; Optical materials -- Periodicals; Photonics -- Periodicals; 620.11295
• DOI: 10.1002/adom.201800606
• Languages: English
• ISSNs: 2195-1071

Abstract

Abstract: 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. Abstract : Mesoporous carbon nanospheres (MCNs) with an average size of 300 nm were synthesized by a "silica‐assisted" method. The MCNs show broadband nonlinear saturable absorption properties. Saturable absorbers (SAs) based on MCNs were fabricated by using filmy and microfiber methods, respectively. Pulsed fiber lasers at 1, 1.56 and 2 μm bands are realized by using these MCNs SAs.