Optics & Laser Technology

The nonlinear absorption and optical limiting in phenoxy-phthalocyanines liquid in nano- and femto-second regime: Experimental studies

Publication date:
June 2014
Source:Optics & Laser Technology, Volume 58
Author(s): Yun-Dong Zhang , Zhen-Yu Zhao , Cheng-Bao Yao , Lan Yang , Jin Li , Ping Yuan

Generation of Raman sidebands aided by a CW Stokes signal

Publication date:
June 2014
Source:Optics & Laser Technology, Volume 58
Author(s): Ying Li , Jing Hou , Jinyong Leng , Wenliang Wang , Zongfu Jiang
We experimentally demonstrate that adding a continuous wave Stokes signal to a picosecond pulse will significantly expand the spectra or help to generate broad cascaded Raman sidebands in an index-guided photonic crystal fiber when pumping in the normal dispersion regime. The generated twelve Raman peaks, spaced by ~13.2THz, contain four Stokes and six anti-Stokes peaks, and spread over a broad spectrum range of 893–1491nm. Each peak has a 3-dB line width smaller than 0.5nm. The cascaded Raman sidebands make it promising to get the wavelength-tunable Raman sources.

Picosecond passively mode-locked laser of 532nm by reflective carbon nanotube

Publication date:
June 2014
Source:Optics & Laser Technology, Volume 58
Author(s): Wei Cai , Qianqian Peng , Wei Hou , Jie Liu , Yonggang Wang
By using reflective single-walled carbon nanotube as the saturable absorber, passively continuous-wave mode-locked of Nd:YVO4/KTP green laser was realized for the first time. The 532nm mode-locked pulse width was estimated to be approximately 7.1ps. The maximum average output power of 456mW at 532nm was obtained at a pump power of 7.35W, corresponding to the repetition rate of 87.14MHz. The single pulse energy and peak power were 5.23nJ and 0.74kW, respectively.

Multiwavelength switching of an EDFL by using a fixed fiber-comb filter and a broadband tunable S-bent fiber filter

Publication date:
June 2014
Source:Optics & Laser Technology, Volume 58
Author(s): A. Martinez-Rios , G. Anzueto-Sanchez , D. Monzon-Hernandez , G. Salceda-Delgado , J. Castrellon-Uribe
Multiwavelength Erbium-doped fiber ring lasers using two fiber filters inserted into the laser cavity is reported. The first fiber comb filter is a Mach–Zender interferometer consisting of two concatenated fiber tapers whose transmission bands determine the lasing wavelengths. The second filter is a tapered fiber which acts as a broadband fiber filter that reshapes the Erbium-doped fiber gain spectrum, and can be tuned by S-bending. Both filters are fabricated on the same fiber thus providing a cheap and very simple method to obtain tunable multiwavelength laser generation.

The hydrophobic and omnidirectional antireflection coating of SiO2 nanospheres with C18-TEOS

Publication date:
June 2014
Source:Optics & Laser Technology, Volume 58
Author(s): Cheng-Chih Hsu , Wen-Lin Lan , Nien-Po Chen , Chyan-Chyi Wu

Analysis of torque mounting configuration for nonlinear optics with large aperture

Publication date:
June 2014
Source:Optics & Laser Technology, Volume 58
Author(s): Yingchun Liang , Ruifeng Su , Haitao Liu , Lihua Lu

Comparative study of diode-pumped hydrocarbon free Rb and K vapor lasers

Publication date:
June 2014
Source:Optics & Laser Technology, Volume 58
Author(s): Fei Gao , Fei Chen , Jijiang Xie , Dianjun Li , Jingjiang Xie , Guilong Yang , Changbin Zheng , Yan Xu , Jin Guo

Analysis of damage threshold on HgCdTe crystal irradiated by multi-pulsed CO2 laser

Publication date:
June 2014
Source:Optics & Laser Technology, Volume 58
Author(s): Wei Tang , Jin Guo , Junfeng Shao , Tingfeng Wang

High-power, high-repetition-rate actively Q-switched 916nm laser and the frequency doubled pulsed 458nm blue laser

Publication date:
June 2014
Source:Optics & Laser Technology, Volume 58
Author(s): Jing Gao , Renpeng Yan , Xin Yu , Xiaodong Wu

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