Results 11 to 20 of about 35,818 (242)

The Influence of Noise Floor on the Measurement of Laser Linewidth Using Short-Delay-Length Self-Heterodyne/Homodyne Techniques

Micromachines, 2022
Delayed self-heterodyne/homodyne measurements based on an unbalanced interferometer are the most used methods for measuring the linewidth of narrow-linewidth lasers.
Zhongan Zhao, Zhenxu Bai, Duo Jin, Xiaojing Chen, Yaoyao Qi, Jie Ding, Bingzheng Yan, Yulei Wang, Zhiwei Lu, Richard P. Mildren   +9 more
doaj   +1 more source

A Sub-kHz Narrow-Linewidth, and Hundred-mW High-Output-Power Silicon-Based Er Silicate Laser With Hybrid Pump and Signal Co-Resonant Cavity

IEEE Photonics Journal, 2020
Narrow-linewidth silicon-based lasersplay an important role in the field of silicon photonics. In this paper, we have proposed a high performance narrow-linewidth silicon-based Er silicate laser, based on strip-loaded DFB waveguide with a hybrid pump and
Peiqi Zhou, Xingjun Wang, Yandong He
doaj   +1 more source

Narrow-Linewidth 2 μm All-Fiber Laser Amplifier with a Highly Stable and Precisely Tunable Wavelength for Gas Molecule Absorption in Photonic Crystal Hollow-Core Fibers

Molecules, 2021
In recent years, mid-infrared fiber lasers based on gas-filled photonic crystal hollow-core fibers (HCFs) have attracted enormous attention. They provide a potential method for the generation of high-power mid-infrared emissions, particularly beyond 4 μm.
Wenxi Pei, Hao Li, Yulong Cui, Zhiyue Zhou, Meng Wang, Zefeng Wang   +5 more
doaj   +1 more source

A Narrow-Linewidth Linearly Polarized 1018-nm Fiber Source for Pumping Diamond Raman Laser

Frontiers in Physics, 2021
A 7.8-GHz linewidth ytterbium-doped fiber (YDF) laser with an output power of 75 W at 1,018 nm is demonstrated based on narrow-bandwidth fiber Bragg gratings.
Xuezong Yang, Xuezong Yang, Zhenxu Bai, Zhenxu Bai, Huawei Jiang, Richard P. Mildren, Yan Feng, Yan Feng   +7 more
doaj   +1 more source

L-Band Erbium Fiber Laser with Tunable and Narrow Sub-kHz Linewidth Output

Applied Sciences, 2023
In this paper, a wavelength-selectable erbium-doped fiber (EDF) laser in L-band bandwidth with a simple structure and low cost is described. To obtain stable single-longitudinal-mode (SLM) and narrow laser linewidth, the 2 m unpumped EDF-based saturable ...
Lan-Yin Chen, Yu-Ting Lai, Chien-Hung Yeh, Chun-Yen Lin, Kuan-Ming Cheng, Jing-Heng Chen, Chi-Wai Chow   +6 more
doaj   +1 more source

Narrow-Linewidth GaN-on-Si Laser Diode with Slot Gratings

Nanomaterials, 2021
This letter reports room-temperature electrically pumped narrow-linewidth GaN-on-Si laser diodes. Unlike conventional distributed Bragg feedback laser diodes with hundreds of gratings, we employed only a few precisely defined slot gratings to narrow the ...
Yongjun Tang, Meixin Feng, Jianxun Liu, Shizhao Fan, Xiujian Sun, Qian Sun, Shuming Zhang, Tong Liu, Yaping Kong, Zengli Huang, Masao Ikeda, Hui Yang   +11 more
doaj   +1 more source

Frequency stabilization of an ultraviolet semiconductor disk laser [PDF]

, 2013
We report a tunable, narrow-linewidth UV laser based on intracavity second-harmonic generation in a red semiconductor disk laser. Single-frequency operation is demonstrated with a total UV output power of 26 mW. By servo-locking the fundamental frequency
Hastie, Jennifer, Paboeuf, David, Schlosser, Peter   +2 more
core   +1 more source

Cost efficient narrow linewidth laser transmitter for coherent detection [PDF]

, 2008
Authors present a cost efficient narrow linewidth laser transmitter for future coherent detection systems. The spectral purity of the laser allows the phase modulation of data signals at bit rates as low as 155 Mb ...
Anandarajah, Prince M., Barry, Liam P., Ellis, A.D., Kaszubowska-Anandarajah, Aleksandra, Kelly, Brian, Mishra, A.K., O'Gorman, J., Perry, Philip, Phelan, Richard, Reid, Douglas A.   +9 more
core   +1 more source

Experimental analysis of emission linewidth narrowing in a pulsed KGd(WO4)2 Raman laser [PDF]

, 2014
The linewidth of a KGd(WO4)2 (KGW) intracavity pumped Raman laser is analyzed experimentally for different configurations of the Raman and pump laser resonators: with narrow and broadband pump emission profiles, with and without linewidth narrowing ...
Savitski, Vasili G.
core   +1 more source

Narrow-linewidth fiber laser operating at 155 μm [PDF]

Optics Letters, 1987
We report the fabrication and operation of an Er(3+)-doped silica single-mode fiber laser operating at 1.55 microm and using a distributed fiber grating to provide feedback. The output bandwidth was measured as 0.04 nm, significantly narrower than the conventional cavity design. The laser had a threshold of 13 mW and a slope efficiency of 5%.
Jauncey, I.M., Reekie, L., Mears, R.J., Rowe, C.J.   +3 more
openaire   +4 more sources