An Influence of Passive Shutter Cr4+:YAG Latent Anisotropy on Output Energy and Polarisation Characteristics of Neodymium Laser at Passive Q-Switching

1997 ◽  
Author(s):  
N.N. Il’ichev ◽  
A.V. Kir’yanov ◽  
E.S. Gulyamova ◽  
P.P. Pashinin
Keyword(s):  
Neodymium Laser ◽  
Output Energy ◽  
Passive Shutter ◽  
Q Switching

scholarly journals Review of the Yb3+:ScBO3 Laser Crystal Growth, Characterization, and Laser Applications

2021 ◽  
Vol 11 (22) ◽  
pp. 10879
Author(s):  
Dazhi Lu ◽  
Xiaoheng Li ◽  
Haohai Yu ◽  
Huaijin Zhang ◽  
Jiyang Wang
Keyword(s):  
Continuous Wave ◽  
High Energy ◽  
Output Energy ◽  
Energy Output ◽  
Laser Generation ◽  
Pulsed Lasers ◽  
Laser Applications ◽  
Practical Applications ◽  
Growth Characterization ◽  
Q Switching

Passive Q-switching is an effective approach for generating pulsed lasers, owing to its compact and additional modulation-free design. However, to compare favorably with active Q-switching and multi-stage amplification, the output energy needs to be enhanced for practical applications. Kramers Ytterbium ion (Yb3+)-doped borate crystals, with their excellent energy storage capacity, have been proven to be high-potential laser gain mediums for achieving pulsed lasers with moderate and high output energy using passive Q-switching technology. In this study, the growth, characterization, and laser generation of one Yb3+-doped borate crystal, the Yb3+:ScBO3 crystal, are systematically reviewed. The continuous-wave and passive Q-switching laser characteristics are presented in detail, and the self-pulsations derived from intrinsic ground-state reabsorption are also demonstrated. The specific characteristics and experiments confirm the potential of the Yb3+:ScBO3 crystal for future pulsed laser applications with moderate or even high energy output.

Nd-YAG-LASER WITH SBS-Q-SWITCHING MIRROR AND REPETITION RATE UP TO 50 Hz

1993 ◽  
Vol 02 (01) ◽  
pp. 187-204 ◽  
Author(s):  
H.J. EICHLER ◽  
CHEN. JUN ◽  
A. KUMMROW ◽  
R. MENZEL ◽  
D. SCHUMANN
Keyword(s):  
Repetition Rate ◽  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Beam Profile ◽  
Output Energy ◽  
Yag Laser ◽  
Spatial Beam ◽  
Q Switching ◽  
Stimulated Brillouin

A Nd-YAG-laser with a phase-conjugating mirror based on stimulated Brillouin scattering (SBS) in a SF 6 cell is described. The output energy was up to 300 mJ in 15 ns pulses with shot to shot fluctuations of less than 3%. The repetition rate could be varied between 15 and 45 Hz without changes of the spatial beam profile which was close to a TEM 00-mode.

scholarly journals $\mathcal {Q}$-switching in a neodymium laser

2012 ◽  
Vol 33 (2) ◽  
pp. 265-278
Author(s):  
Warein Holgado ◽  
Íñigo J Sola ◽  
Enrique Conejero Jarque ◽  
Sebastián Jarabo ◽  
Luis Roso
Keyword(s):  
Neodymium Laser ◽  
Q Switching

FIRST OBSERVATION OF DETERMINISTIC CHAOS IN PASSIVE Q-SWITCHING PULSATION

1988 ◽  
Vol 49 (C2) ◽  
pp. C2-413-C2-416
Author(s):  
M. TACHIKAWA ◽  
K. TANII ◽  
F.-L. HONG ◽  
T. TOHEI ◽  
M. KAJITA ◽  
...  
Keyword(s):  
Deterministic Chaos ◽  
Q Switching

Possibilities of using neodymium laser (Nd:YAG) in patients with concomitant diseases which are accompanied by pathological discharge from the genital tract

GYNECOLOGY ◽  
2020 ◽  
Vol 22 (4) ◽  
pp. 75-81
Author(s):  
Olga A. Pauzina ◽  
Inna A. Apolikhina ◽  
Darya A. Malyshkina
Keyword(s):  
Drug Therapy ◽  
Pelvic Floor ◽  
Genital Tract ◽  
Vaginal Discharge ◽  
Muscle Tone ◽  
Pelvic Floor Muscle ◽  
Pelvic Floor Dysfunction ◽  
Vaginal Wall ◽  
Neodymium Laser ◽  
Frequent Relapses

Background. Pathological vaginal discharge is the most common disorder in women after giving birth who have vaginal relaxation syndrome and vaginal wall prolapse, as well as in women during menopause. To date, there are no clear treatment regimens for mixed vulvovaginal infections, and the use of only drug therapy in patients with pelvic organ prolapse and genitourinary syndrome of menopause in combination with diseases which are accompanied by pathological vaginal discharge does not give a long lasting result and is characterized by frequent relapses. In this regard, the use of laser methods in combination with drug therapy may lead to the recovery of vaginal microbiocenosis and a decrease in the number of relapses of diseases which are accompanied by pathological discharge from the genital tract. Results. Description. This article presents a clinical case and description of the experience of using a neodymium laser for the treatment of a patient with recurrent mixed vulvovaginitis, 2nd- degree vaginal wall prolapse, loss of pelvic floor muscle tone, vaginal relaxation syndrome and sexual dysfunction using neodymium laser. The woman received 3 procedures of exposure to a neodymium laser with an interval of 2830 days. After 3 procedures of exposure to a neodymium laser, the patient has a good clinical efficacy in the recovery of vaginal microbiocenosis. Conclusions. An innovative technique of exposure to Nd:YAG neodymium laser in the practice of a gynecologist has shown high clinical efficiency in the treatment of not only pelvic floor dysfunction, but also mixed vulvovaginitis. And, despite this aspect of the use of laser technologies requires further study, we can use a neodymium laser in combination with traditional drug therapy to treat diseases which are accompanied by pathological discharge from the genital tract in cases of ineffective drug monotherapy and frequent relapses.

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