Results 11 to 20 of about 6,540 (173)

Stable Single-Longitudinal-Mode Fiber Laser With Ultra-Narrow Linewidth Based on Convex-Shaped Fiber Ring and Sagnac Loop

IEEE Access, 2019
In this investigation, a convex-shaped fiber ring (CSFR)-based single-longitudinal-mode (SLM) erbium-doped fiber laser (EDFL) is proposed and experimentally verified. The CSFR, composed of only two optical couplers and forming a double-ring architecture,
Zhengkang Wang, Jianming Shang, Kuanlin Mu, Song Yu, Yaojun Qiao   +4 more
doaj   +3 more sources

Stable and Tunable Single-Longitudinal-Mode Erbium-Doped Fiber Triple-Ring Laser With Power-Equalized Output

IEEE Photonics Journal, 2016
In this demonstration, we propose and investigate a stable and tunable single-longitudinal-mode (SLM) erbium-doped fiber (EDF) ring laser structure. Here, in order to achieve the SLM output, the “eye-type” triple-ring scheme is designed in ...
Chien-Hung Yeh, Jhih-Yu Chen, Hone-Zhang Chen, Jing-Heng Chen, Chi-Wai Chow   +4 more
doaj   +3 more sources

Single longitudinal mode narrow linewidth thulium-doped fiber laser based on an eye-shaped dual-ring filter

Frontiers in Physics, 2023
A single-longitudinal-mode (SLM) thulium-doped fiber laser, based on an eye-shaped passive dual-ring filter, is designed and constructed. The eye-shaped passive compound cavity consisting of four couplers is used to increase the longitudinal mode spacing,
Xiangdong Wang, Fengping Yan, Hao Guo, Wei Wang, Qi Qin, Dandan Yang, Pengfei Wang, Ting Li, Chenhao Yu, Biao Guan, Kazuo Kumamoto, Yuping Suo, Yan Bai   +12 more
doaj   +1 more source

High-power free-running single-longitudinal-mode diamond Raman laser enabled by suppressing parasitic stimulated Brillouin scattering

High Power Laser Science and Engineering, 2023
A continuous-wave (CW) single-longitudinal-mode (SLM) Raman laser at 1240 nm with power of up to 20.6 W was demonstrated in a free-running diamond Raman oscillator without any axial-mode selection elements.
Yuxuan Liu, Chengjie Zhu, Yuxiang Sun, Richard P. Mildren, Zhenxu Bai, Baitao Zhang, Weibiao Chen, Dijun Chen, Muye Li, Xuezong Yang, Yan Feng   +10 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

Tunable single-longitudinal-mode fiber optical parametric oscillator with saturable-absorber-based auto-tracking filter [PDF]

, 2010
A tunable single-longitudinal-mode (SLM) fiber optical parametric oscillator is demonstrated by using a subring cavity and a fiber loop mirror incorporated with a saturable absorber. It can provide dual-wavelength SLM output.
Cheung, KKY, Wong, KKY, Xu, X, Yang, S, Zhou, Y   +4 more
core   +1 more source

Continuous-wave single-longitudinal-mode fiber-optical parametric oscillator with reduced pump threshold [PDF]

, 2009
A single-longitudinal-mode (SLM) fiber-optical parametric oscillator (FOPO) is proposed and demonstrated experimentally. The FOPO operates fundamentally by resonating the nondegenerate signal and idler in two separate optical cavities independently ...
Cheung, KKY, Wong, KKY, Xu, X, Yang, S, Zhou, Y   +4 more
core   +1 more source

Exploiting multimode waveguides for pure fibre-based imaging [PDF]

, 2012
We acknowledge support from the UK Engineering and Physical Science Research CouncilThere has been an immense drive in modern microscopy towards miniaturisation and fibre based technology.
Cizmar, Tomas, Dholakia, Kishan
core   +2 more sources

A Broad Continuous Temperature Tunable DBR Single-Frequency Fiber Laser at 1064 nm

IEEE Photonics Journal, 2016
Based on a temperature-dependent longitudinal-mode-selection model, a broad temperature range for single-longitudinal-mode (SLM) operation of a short DBR phosphate fiber laser has been demonstrated.
Yuning Zhang, Can Li, Shanhui Xu, Huaqiu Deng, Zhouming Feng, Changsheng Yang, Xiang Huang, Yuanfei Zhang, Jiulin Gan, Zhongmin Yang   +9 more
doaj   +1 more source

Frequency swept fiber ring laser based on optical parametric process with single-longitudinal-mode operation [PDF]

, 2011
A stable and wavelength-tunable single-longitudinal-mode (SLM) oscillation with sweeping rate of 1.17 kHz based on a fiber-optical parametric oscillator (FOPO) is proposed and demonstrated.
Cheung, KKY, Wong, KKY, Yang, S, Zhou, Y
core   +1 more source