Phase conjugation for pulse-repetition CO2 laser with millisecond pulse duration

1994 ◽  
Author(s):  
Victor I. Kuprenyuk ◽  
I. N. Ladygin ◽  
Konstantin G. Lazunin ◽  
Victor V. Sergeev ◽  
V. A. Smirnov ◽  
...  
Keyword(s):  
Pulse Duration ◽  
Phase Conjugation ◽  
Pulse Repetition ◽  
Millisecond Pulse

Locked phase conjugation for two-beam coupling of pulse repetition rate solid-state lasers

1991 ◽  
Vol 27 (1) ◽  
pp. 135-141 ◽  
Author(s):  
N.F. Andreev ◽  
E.A. Khazanov ◽  
S.V. Kuznetsov ◽  
G.A. Pasmanik ◽  
E.I. Shklovsky ◽  
...  
Keyword(s):  
Solid State ◽  
Repetition Rate ◽  
Pulse Repetition Rate ◽  
Phase Conjugation ◽  
Pulse Repetition ◽  
Solid State Lasers ◽  
Beam Coupling

Effect of Nd:YAG radiation at millisecond pulse duration on dentine crater depth

2000 ◽  
Vol 27 (3) ◽  
pp. 213-223 ◽  
Author(s):  
Ailbhe V. McDonald ◽  
Noel M. Claffey ◽  
Gavin J. Pearson ◽  
Werner Blau ◽  
Derrick J. Setchell
Keyword(s):  
Pulse Duration ◽  
Crater Depth ◽  
Millisecond Pulse

scholarly journals Eye-safe solid-state quasi-CW Raman laser with millisecond pulse duration

2012 ◽  
Vol 285 (10-11) ◽  
pp. 2719-2723 ◽  
Author(s):  
Anton A. Kananovich ◽  
Vladimir I. Dashkevich ◽  
Pavel A. Apanasevich ◽  
Dmitriy H. Zusin ◽  
Valentin A. Orlovich
Keyword(s):  
Solid State ◽  
Pulse Duration ◽  
Raman Laser ◽  
Millisecond Pulse

Study and process control in laser conduction welding for millisecond-pulse duration range

2002 ◽  
Author(s):  
Laurent Berthe ◽  
Delphine Delage ◽  
Didier Lepretre ◽  
Leonard Bacinello ◽  
Wolfgang Knapp ◽  
...  
Keyword(s):  
Process Control ◽  
Pulse Duration ◽  
Millisecond Pulse

Study and control process in laser conduction welding for millisecond pulse duration range

2003 ◽  
Author(s):  
Laurent Berthe ◽  
Delphine Delage ◽  
Didier Lepretre ◽  
Leonard Bacinello ◽  
Wolfgang Knapp ◽  
...  
Keyword(s):  
Pulse Duration ◽  
Control Process ◽  
Millisecond Pulse ◽  
And Control

scholarly journals A promising approach in laser vitrectomy executed by plasma-mediated removal of vitreous body via a diode-pumped Q-switched Nd:YAG laser

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Daniel Uthoff ◽  
Rita Oravecz ◽  
Romina Kuehnl ◽  
Friederike Rubin-Schwarz ◽  
Matthias Frentzen ◽  
...  
Keyword(s):  
Pulse Duration ◽  
Nd:Yag Laser ◽  
Vitreous Body ◽  
Pulse Repetition ◽  
Neodymium:Yag Laser ◽  
Removal Rates ◽  
Eye Surgery ◽  
Diode Pumped

AbstractTo examine the applicability of plasma-mediated vitreous body removal, a diode-pumped Q-switched Neodymium:YAG laser was used for a possible application in eye surgery/vitrectomy. On a total of 1500 porcine vitreous bodies, removal rates were evaluated by comparing different LaserVit-tip designs (Mark I/II Gauge 19 and Mark III Gauge 22). The Nd:YAG laser, operating at a wavelength of 1064 nm and a pulse duration of 4 ns, was utilized for vitreous body removal with respective settings of 2, 3 and 4 mJ and pulse repetition rates (cut rates) from 5 to 25 Hz (300–1500 /min) in 5 Hz-steps as well as for 100 Hz (6000 cuts/min). The exposure times were selected at 10, 20, 40 and 60 s, respectively. Comparative measurements were carried out with mechanical cutters (Gauge 20 and Gauge 23), applying a fixed cut rate of 800 /min (13.33 Hz) at identical exposure times. The LaserVit-tips showed successful vitreous body removal for all laser settings and exposure times (Mark I: 6.2 g/min, Mark II: 8.2 g/min at 1500 cuts/min and 3 mJ, Mark II: 10.1 g/min, Mark III: 3.6 g/min at 6000 cuts/min at 3 mJ). Similar tip-dimensions (Gauge 22laser and Gauge 23cutter) showed comparable removal rates of 3.6 g/minlaser and 1.3 g/mincutter with settings of 6000 cuts/min at 3 mJ (laser) and 800 cuts/min for the mechanical cutter. A diode-pumped Q-switched Nd:YAG laser can successfully and gently remove vitreous body. The efficiency of the laser was comparable to that of mechanical cutters in terms of quantity of material removed per time unit.

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