Results 21 to 30 of about 3,036,443 (205)

Topological Insulator Simultaneously Q-Switched Dual-Wavelength $ \hbox{Nd}:\hbox{Lu}_{2}\hbox{O}_{3}$ Laser

IEEE Photonics Journal, 2014
We demonstrated the dual-wavelength simultaneously Q-switched Nd: Lu2O3 laser with a topological insulator Bi2Se3 as the Q-switcher. The continuous-wave Nd:Lu2O3 crystal laser with the slope efficiency of 31% was achieved, and the first Nd:Lu2O3 pulsed ...
Baolin Wang, Haohai Yu, Han Zhang, Chujun Zhao, Shuangchun Wen, Huaijin Zhang, Jiyang Wang   +6 more
doaj   +1 more source

A Linearly Polarized Wavelength-Tunable Q-Switched Fiber Laser with a Narrow Spectral Bandwidth of 112 MHz

Sensors, 2023
A tunable and narrow-bandwidth Q-switched ytterbium-doped fiber (YDF) laser is investigated in this paper. The non-pumped YDF acts as a saturable absorber and, together with a Sagnac loop mirror, provides a dynamic spectral-filtering grating to achieve a
Chengjie Zhu, Xuezong Yang, Yuxuan Liu, Muye Li, Yuxiang Sun, Wei You, Peng Dong, Dijun Chen, Yan Feng, Weibiao Chen   +9 more
doaj   +1 more source

Nanosecond Hybrid Q-Switched Er-Doped Fiber Laser With WS₂ Saturable Absorber

IEEE Photonics Journal, 2016
We demonstrate a stable hybrid Q-switched Er-doped fiber (EDF) laser with WS2 as the saturable absorber (SA). The SA device is obtained by depositing WS2 on a tapered fiber using the pulsed laser deposition method.
Lihui Pang, Wenjun Liu, Wenlong Tian, Hainian Han, Zhiyi Wei   +4 more
doaj   +1 more source

Self-Q-switched Cr:LiCAF laser

Journal of the Optical Society of America B, 2013
We report self-Q-switched operation of a Cr:LiCAF laser for the first time to our knowledge. Self-Q-switching (SQS) refers to the generation of a periodic train of Q-switched pulses from a laser cavity containing only the gain medium. Since SQS does not require any additional elements such as saturable absorbers or active modulators, it is far simpler ...
Beyatli, Ersen, Sennaroglu, Alphan, Demirbas, Umit   +2 more
openaire   +4 more sources

Black Phosphorus Q-Switched Large-Mode-Area Tm-Doped Fiber Laser

International Journal of Optics, 2018
We report on a passively Q-switched fiber laser with black phosphorus as saturable absorber. By employing the sol-gel fabricated large-mode-area Tm-doped fiber as gain medium, a high-energy Q-switched fiber laser has been demonstrated which delivers the ...
Yan Ren, Zhipeng Qin, Guoqiang Xie, Zhen Qiao, Jingui Ma, Peng Yuan, Liejia Qian, Shikai Wang, Chunlei Yu, Lili Hu   +9 more
doaj   +1 more source

Type-I intermittency route to chaos in passively Q-switched Tm:YLF laser emitting at 2.3 μm [PDF]

EPJ Web of Conferences
We report on an original chaotic dynamic behaviour of a passively Q-switched 2.3-μm Thulium laser operating on the 3H4 → 3H5 transition. The experiment employs a Tm:LiYF4 laser crystal within various laser cavity configurations, involving optional ...
Dupont Hippolyte, Glasset Matthieu, Loiko Pavel, Georges Patrick, Druon Frédéric   +4 more
doaj   +1 more source

Revealing the Evolution from Q-Switching to Mode-Locking in an Erbium-Doped Fiber Laser Using Tungsten Trioxide Saturable Absorber

Photonics, 2022
Passively Q-switching and mode-locking technologies can generate short pulses with durations that differ by several orders of magnitude widely used in different applications.
Xin Tan, Ya Liu, Yongkang Zheng, Zewu Xie, Guoqing Hu   +4 more
doaj   +1 more source

Comparative Efficacy of Fractional CO₂ Laser and Q-Switched Nd:YAG Laser in Combination Therapy with Tranexamic Acid in Refractory Melasma: Results of a Prospective Clinical Trial

Cosmetics, 2021
Melasma manifests as hyperpigmented macules and patches, usually affecting the face, neck, and rarely upper limbs. This study evaluated comparative efficacy of a fractional CO2 laser with a Q-Switched Nd:YAG laser in combination therapy with tranexamic ...
Amir Mohammad Beyzaee, Anant Patil, Mohamad Goldust, Marjan Moslemi, Armaghan Kazeminejad, Ghasem Rahmatpour Rokni   +5 more
doaj   +1 more source

Passively Q-switched Nd:YAG laser with a MoS2 solution saturable absorber

, 2015
This study presents a passively Q-switched Nd:YAG laser using a MoS2 solution as a saturable absorber. The prepared MoS2 solution saturable absorber features adjustable optical absorption, high heat dissipation, and non-contact damage.
Mao, Dong, Wang, Yonggang, Sun, Hang, Lin, Tao, Li, Lu, Duan, Lina, Wang, Xi   +6 more
core   +1 more source

Broadband diode-pumped ytterbium-doped fiber amplifier with 34 dBm output power [PDF]

, 1999
We investigate a high-power diode-pumped double-clad ytterbium-doped fiber amplifier with 34 dBm average output power and 1050 - 1095 nm bandwidth. A multi-diode concentrator pumps the amplifier at 980 nm, with ~6 W of power launched into the inner ...
Renaud, C.C., Sousa, J.M., Alvarez-Chavez, J.A., Nilsson, J., Minelly, JD, Minelly, J.D., Alvarez-Chavez, JA, Grudinin, A.B., Renaud, CC, Grudinin, AB, Sousa, JM, Nilsson, J   +11 more
core   +1 more source