Results 161 to 170 of about 525,806 (272)

Pulse-pumping of cascaded Raman fibre amplifiers

, 2010
In this thesis, I investigate cascaded Raman fibre amplifiers (RFAs) pumped with shaped optical pulses delivered from a Yb doped fibre MOPA source. RFAs offer the potential to generate gain at any arbitrary wavelength with an appropriate pump source ...
Farrell, Carl
core  

Tunable Terahertz Generation in Dispersion‐Engineered ZnTe Waveguides

Laser &Photonics Reviews, EarlyView.
A dispersion‐engineered Zinc Telluride (ZnTe) slab waveguide platform enables tunable and efficient guided‐wave terahertz (THz) generation through modal phase matching. By tailoring the optical and THz modal dispersion, coherent THz emission is achieved across 0.1–3 THz.
Arun Jana, Cormac McDonnell, Mai Tal, Anastasiya Reveguk, Amit Kohn, Tal Ellenbogen   +5 more
wiley   +1 more source

Narrow Linewidth All-Optical Microwave Oscillator Based on Torsional Radial Acoustic Modes of Single-Mode Fiber. [PDF]

Micromachines (Basel)
Wang W, He W, Fang X, Liu Y, You Y, Li M, Yu L, Yan Q, Hou Y, He J, Chou X.   +10 more
europepmc   +1 more source

Narrow Linewidth Distributed Bragg Reflectors Based on InGaN/GaN Laser. [PDF]

Micromachines (Basel), 2019
Xie W, Li J, Liao M, Deng Z, Wang W, Sun S.   +5 more
europepmc   +1 more source

Spatiospectral Photoacoustic Microscopy With Gain‐Switched Ti:Sapphire Laser for High‐Accuracy Molecular Dynamics Imaging

Laser &Photonics Reviews, EarlyView.
Spatiospectral photoacoustic microscopy is enabled by stable, wavelength‐tunable dual‐pulse excitation from a gain‐switched Ti:sapphire laser. Intrinsically synchronized 532‐nm and NIR‐I pulses provide single‐scan, co‐registered mapping of oxygen saturation and indocyanine green dynamics in vivo.
Yong‐Jae Lee, Thanh Dat Le, Dong Hoon Song, Jin Hee Im, Seong‐Young Kwon, Tae Young Jeong, Jung‐Joon Min, Changho Lee, Tae Joong Eom   +8 more
wiley   +1 more source

Activation and Detection of Forbidden Low‐Frequency Raman Modes in MoS2 by Near‐Field Gradient Illumination

Laser &Photonics Reviews, EarlyView.
Low‐frequency Raman‐forbidden interlayer phonons in 2D materials are typically hidden by selection rules. Here, we demonstrate that plasmonic near‐field gradients can activate and detect these forbidden low‐frequency modes in a few‐layer MoS2 sample, unveiling a gradient‐driven mechanism for revealing hidden interlayer vibrations and breaking symmetry.
Zhen Zong, Ryosuke Morisaki, Kanami Sugiyama, Masahiro Higashi, Takayuki Umakoshi, Prabhat Verma   +5 more
wiley   +1 more source

Study on Linewidth and Phase Noise Characteristics of a Narrow Linewidth External Cavity Diode Laser. [PDF]

Sensors (Basel)
Hu S, Lv P, Guan C, Li S, Qin H, Li X, Chen X, Zhan L, Wang W, Xiao Y, Wu M.   +10 more
europepmc   +1 more source

A Fully‐Connected Chip‐Integrated Reconfigurable Mode‐Pairing Quantum Key Distribution Network

Laser &Photonics Reviews, EarlyView.
This work constructs a fully connected reconfigurable chip‐integrated quantum key distribution network via the mode‐pairing protocol. Hybrid ECL and WSS chips cut wavelength and port overhead, realizing arbitrary‐user key sharing with merely two wavelengths.
Xiao‐Lei Jiang, Wei Gao, Yan‐Yang Zhou, Yu Zhou, Yu‐Yao Guo, Yi‐Fei Lu, Yuan‐Chao Yu, Yang Wang, Jia‐Ji Li, Chun Zhou, Hong‐Wei Li, Liang‐Jun Lu, Lin‐Jie Zhou, Jian‐Ping Chen, Wan‐Su Bao   +14 more
wiley   +1 more source

Efficient, high-power, narrow-linewidth, continuous-wave quantum-dot semiconductor comb laser. [PDF]

Sci Rep
Buyalo M, Gubenko A, Mikhrin S, Mikhrin V, Kovsh AR, Krishnamoorthy AV.   +5 more
europepmc   +1 more source

Color Symmetry Breaking in a Nonlinear Optical Microresonator

Laser &Photonics Reviews, EarlyView.
A two‐color pump drives an integrated microring resonator into spontaneous color symmetry breaking mediated by the nonlinear Kerr effect. Above threshold, one optical color becomes spontaneously dominant while the other is submissive, with the selected output state emerging randomly. These results establish a new form of symmetry breaking in integrated
Luca O. Trinchão, Alekhya Ghosh, Arghadeep Pal, Haochen Yan, Toby Bi, Shuangyou Zhang, Nathalia B. Tomazio, Flore K. Kunst, Lewis Hill, Gustavo S. Wiederhecker, Pascal Del'Haye   +10 more
wiley   +1 more source