Measurement of Excitation-Emission Matrix of Shock-heated PAHs using a Multi-wavelength Laser Source

2003 ◽  
Author(s):  
Tetsuya Aizawa ◽  
Kenta Imaichi ◽  
Hidenori Kosaka ◽  
Yukio Matsui
Keyword(s):  
Laser Source ◽  
Excitation Emission Matrix ◽  
Multi Wavelength

Measurements of Excitation-Emission Matrix of PAHs in a Flame Using a Multi-Wavelength Laser Source

2003 ◽  
Vol 2003.3 (0) ◽  
pp. 101-102
Author(s):  
Tetsuya AIZAWA ◽  
Masayuki HOSAKA ◽  
Hidenori KOSAKA ◽  
Yukio MATSUI
Keyword(s):  
Laser Source ◽  
Excitation Emission Matrix ◽  
Multi Wavelength

Narrow linewidth swept laser source based on cascaded multi-wavelength injection of DFB lasers

2020 ◽  
Vol 59 (30) ◽  
pp. 9393
Author(s):  
Hong Liang ◽  
Kang Ying ◽  
Fang Wei ◽  
Yanguang Sun ◽  
Zhaoyong Wang ◽  
...  
Keyword(s):  
Laser Source ◽  
Narrow Linewidth ◽  
Multi Wavelength

A 12 GHz wavelength spacing multi-wavelength laser source for wireless communication systems

2017 ◽  
Vol 93 ◽  
pp. 175-179 ◽  
Author(s):  
P.C. Peng ◽  
R.K. Shiu ◽  
M.A. Bitew ◽  
T.L. Chang ◽  
C.H. Lai ◽  
...  
Keyword(s):  
Wireless Communication ◽  
Communication Systems ◽  
Laser Source ◽  
Wireless Communication Systems ◽  
Wavelength Spacing ◽  
Multi Wavelength

scholarly journals Coherent optical communications using coherence-cloned Kerr soliton microcombs

2021 ◽  
Author(s):  
Yong Geng ◽  
Heng Zhou ◽  
Xinjie Han ◽  
Wenwen Cui ◽  
Qiang Zhang ◽  
...  
Keyword(s):  
Optical Communications ◽  
Coherent Detection ◽  
Laser Source ◽  
Phase Estimation ◽  
Local Oscillators ◽  
Fiber Optical ◽  
Multi Wavelength ◽  
Fiber Optical Communications ◽  
On Chip ◽  
Digital Processes

Abstract Dissipative Kerr soliton microcomb has been recognized as a promising on-chip multi-wavelength laser source for fiber optical communications, as its comb lines possess frequency and phase stability far beyond the independent lasers. In the scenarios of coherent optical transmission and interconnect, a highly beneficial but rarely explored target is to re-generate a Kerr soliton microcomb at the receiver side as local oscillators that conserve the frequency and phase property of the incoming data carriers, so that to enable coherent detection with minimized optical and electrical compensations. Here, by using the techniques of pump laser conveying and two-point locking, we implement re-generation of a Kerr soliton microcomb that faithfully clones the frequency and phase coherence of another microcomb sent from 50 km away. Moreover, leveraging the coherence-cloned soliton microcombs as carriers and local oscillators, we demonstrate terabit coherent data interconnect, wherein traditional digital processes for frequency offset estimation is totally dispensed with, and carrier phase estimation is substantially simplified via slowed-down phase estimation rate per channel and joint phase estimation among multiple channels. Our work reveals that, in addition to providing a multitude of laser tones, regulating the frequency and phase of Kerr soliton microcombs among transmitters and receivers can significantly improve optical coherent communication in terms of performance, power consumption, and simplicity.

An over 40 channel multi-wavelength laser source

2007 ◽  
Vol 50 (1) ◽  
pp. 92-94 ◽  
Author(s):  
Z.G. Lu ◽  
J.R. Liu ◽  
X.P. Zhang
Keyword(s):  
Laser Source ◽  
Multi Wavelength

scholarly journals Simultaneous Second-Harmonic, Sum-Frequency Generation and Stimulated Raman Scattering in MgO:PPLN

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2266
Author(s):  
Dismas Choge ◽  
Huaixi Chen ◽  
Lei Guo ◽  
Guangwei Li ◽  
Wanguo Liang
Keyword(s):  
Raman Scattering ◽  
Stimulated Raman Scattering ◽  
Second Harmonic ◽  
Sum Frequency Generation ◽  
Laser Source ◽  
Sum Frequency ◽  
Wide Range ◽  
Multi Wavelength ◽  
Frequency Generation ◽  
Stimulated Raman

In this study, simultaneous second-harmonic generation (SHG), sum frequency generation (SFG), and Raman conversion based on MgO-doped periodically poled lithium niobate (MgO:PPLN) for multi-wavelength generation is demonstrated. The approach used is based on a single MgO:PPLN crystal poled with a uniform period of 10.2 µm that phase matches SHG and SFG, simultaneously. Using a simplified double-pass geometry, up to 0.8 W of blue light at 487 nm is achieved by a frequency-doubling 974 nm laser diode pump, and 0.5 W of orange light at 598 nm is generated by frequency mixing 974 nm pump with C-band (1527–1565 nm) tunable laser source. At high pump powers of the 974 nm laser source, other unexpected peaks at 437, 536, 756, 815 and 1038 nm were observed, of which the 1038 nm line is due to Stimulated Raman Scattering within the MgO:PPLN crystal. The resulting multi-wavelength light source may find a wide range of applications in biomedicine and basic research.

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