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V. Ménoret, R. Geiger, G. Stern, N. Zahzam, B. Battelier, A. Bresson, A. Landragin, P. Bouyer
We present a compact and stable dual-wavelength laser source for onboard atom interferometry with two different atomic species. It is based on frequency-doubled telecom lasers locked on a femtosecond optical frequency comb. We take advantage of the maturity of fiber telecom technology to reduce the ... [Opt. Lett. 36, 4128-4130 (2011)]
Xin-Hong Jia, Yun-Jiang Rao, Zi-Nan Wang, Wei-Li Zhang, Zeng-Ling Ran, Kun Deng, Zi-Xin Yang
An alternative structure using third-order Raman amplification based on ultralong fiber lasers (UL-FLs) is investigated numerically to further improve the quasi-lossless transmission performance. The performance comparisons on flatness of signal distribution, optical signal–noise ratio ... [J. Opt. Soc. Am. B 29, 847-854 (2012)]
This paper describes the 10-Gb/s, full
Xinbin Cheng, Abudusalamu Tuniyazi, Jinlong Zhang, Tao Ding, Hongfei Jiao, Bin Ma, Zeyong Wei, Hongqiang Li, Zhanshan Wang
Our recent studies on nodular damage in dielectric multilayer mirrors were first reviewed, and the main findings are taken as a foundation to further investigate the influence of seed absorptivity and asymmetrical boundary on the laser-induced damage of nodules. Experimental results showed that the ... [Appl. Opt. 53, A62-A69 (2014)]
Author(s): Michael Schnell, Alexander Sävert, Björn Landgraf, Maria Reuter, Maria Nicolai, Oliver Jäckel, Christian Peth, Tobias Thiele, Oliver Jansen, Alexander Pukhov, Oswald Willi, Malte C. Kaluza, and Christian Spielmann
We investigate the properties of a laser-plasma electron accelerator as a bright source of keV x-ray radiation. During the interaction, the electrons undergo betatron oscillations and from the carefully measured x-ray spectrum the oscillation amplitude of the electrons can be deduced which decreases...
[Phys. Rev. Lett. 108, 075001] Published Mon Feb 13, 2012
Min Yong Jeon, Namje Kim, Jaeheon Shin, Jong Sool Jeong, Sang-Pil Han, Chul Wook Lee, Young Ahn Leem, Dae-Su Yee, Hyang Sook Chun, Kyung Hyun Park
We propose a widely tunable dual-wavelength Erbium-doped fiber laser that uses two micro-heater-integrated Fabry-Perot laser diodes (FP-LDs) and two fiber Bragg gratings (FBGs) for tunable continuous-wave (CW) terahertz (THz) radiation. Each wavelength can be independently tuned by using an FP-LD ... [Opt. Express 18, 12291-12297 (2010)]
Author(s): Morten Bache and Frank W. Wise
The output pulses of a commercial high-power femtosecond fiber laser or amplifier are typically around 300–500 fs with wavelengths of approximately 1030 nm and tens of microjoules of pulse energy. Here, we present a numerical study of cascaded quadratic soliton compression of such pulses in LiNbO_...
[Phys. Rev. A 81, 053815] Published Tue May 11, 2010
Chun-Chieh Liao, Kuo-Yu Wu, Yu-Hung Lien, Horst Knöckel, Hsiang-Chen Chui, Eberhard Tiemann, Jow-Tsong Shy
High precision frequency measurements of I127_2 hyperfine transitions in the wavelength range between 750 and 780 nm were performed employing an optical frequency comb. A Ti:sapphire laser is frequency stabilized to a hyperfine component of I_2 using a Doppler-free frequency modulation technique, ... [J. Opt. Soc. Am. B 27, 1208-1214 (2010)]
Author(s): W. Liang, V. S. Ilchenko, A. A. Savchenkov, A. B. Matsko, D. Seidel, and L. Maleki
We report on the observation of a mode-locked laser generated with a crystalline whispering gallery mode resonator pumped with a continuous wave laser. Optical pumping of the resonator generates an optical frequency comb with phase locked components at the Raman offset of the resonator host material...
[Phys. Rev. Lett. 105, 143903] Published Thu Sep 30, 2010
Chien-Sheng Liu, Yu-Ching Chang, Kun-Wei Lin, Po-Heng Lin
Effective methods for speckle reduction are essential in improving the image quality of laser imaging applications. Accordingly, the present study proposes a novel technique for reducing the speckle contrast in laser imaging applications by means of the magneto-optic Kerr effect induced by a ... [J. Opt. Soc. Am. A 31, 16-20 (2014)]
The influence of in-situ thermal cleaning on the regrowth interface quality of 1.3-
Zhaowei Zhang, Derryck T. Reid, S. Chaitanya Kumar, Majid Ebrahim-Zadeh, Peter G. Schunemann, Kevin T. Zawilski, Christopher R. Howle
We report the first, to the best of our knowledge, femtosecond-laser-pumped optical parametric oscillator (OPO) based on the newly developed nonlinear crystal, CdSiP_2. The OPO was synchronously pumped by a mode-locked Yb:KYW/Yb:fiber master-oscillator power amplifier, providing 1.053 μm ... [Opt. Lett. 38, 5110-5113 (2013)]
Sha Tao, Ronald L. Jacobsen, and Benxin Wu
Investigations have been performed on the physical mechanisms of picosecond laser ablation of silicon carbide at 355 and 1064 nm, which have not been well understood yet. The study shows that the low-fluence ablation rates are close for 355 and 1064 nm, and the dominant material removal mechanism sh ... [Appl. Phys. Lett. 97, 181918 (2010)] published Thu Nov 4, 2010.
Author(s): Emmanuel Fowe Penka, Etienne Couture-Bienvenue, and Andre D. Bandrauk
Molecular high-order-harmonic generation and molecular-orbital ionization rates are calculated for the CO, H2CO, CO+, and H2CO+ molecules using numerical solutions of Kohn-Sham equations of time-dependent density-functional theory in the nonlinear nonperturbative regime of laser-molecule interaction...
[Phys. Rev. A 89, 023414] Published Wed Feb 12, 2014
Author(s): Andrei Kirilyuk, Alexey V. Kimel, and Theo Rasing
The interaction of subpicosecond laser pulses with magnetically ordered materials has developed into a fascinating research topic in modern magnetism. From the discovery of subpicosecond demagnetization over a decade ago to the recent demonstration of magnetization reversal by a single 40fs laser pu...
[Rev. Mod. Phys. 82, 2731] Published Wed Sep 22, 2010
Junqing Zhao, Peiguang Yan, Shuang-Chen Ruan
We experimentally observed three types of pulses generated in an erbium-doped fiber laser by incorporating a homemade graphene saturable absorber (GSA). The generated pulses from the laser oscillator include dual-wavelength dark pulses, fundamentally step-like pulses, and non-soliton ... [Appl. Opt. 52, 8465-8470 (2013)]
Benjamin Potsaid, Bernhard Baumann, David Huang, Scott Barry, Alex E. Cable, Joel S. Schuman, Jay S. Duker, James G. Fujimoto
We demonstrate ultrahigh speed swept source/Fourier domain ophthalmic OCT imaging using a short cavity swept laser at 100,000 - 400,000 axial scan rates. Several design configurations illustrate tradeoffs in imaging speed, sensitivity, axial resolution, and imaging depth. Variable rate A/D optical ... [Opt. Express 18, 20029-20048 (2010)]