What is Yb YAG laser?

Ytterbium-doped YAG (Yb:YAG) is an active laser medium lasing at 1030 nm, with a broad, 18 nm wide absorption band at 940 nm. It is one of the most useful media for high-power diode-pumped solid state lasers. The dopant levels used range between 0.2% and 30% of replaced yttrium atoms.

What is ND YAG laser used for?

There are numerous ophthalmic applications for Nd:YAG lasers. They are most commonly used to treat posterior capsular opacification after cataract surgery and to create a peripheral iridotomy in patients with narrow angles or angle-closure glaucoma.

Where is ND YAG laser most commonly used?

Nd:YAG lasers are used in ophthalmology to correct posterior capsular opacification, after cataract surgery, for peripheral iridotomy in patients with chronic and acute angle-closure glaucoma, where it has largely superseded surgical iridectomy, for the treatment of vitreous eye floaters, for pan-retinal …

Which pump is used in Nd YAG laser?

optical pumping
The laser- active material which, in the case of the Nd-YAG laser, is excited by optical pumping, consists of Neodymium atoms that are accommodated in a transparent host crystal (YAG = Yttrium Aluminium Garnet).

Which is the best ytterbium fiber for lasers?

Liekki YB1200-4/125 is a highly doped ytterbium fiber for low noise, low nonlinearity preamplifiers and lasers. It is a single-clad fiber for core-pumped applications. This fiber is ideal for use as a preamplifier in a fiber amplifier chain with double cladding fiber acting as a power amplifier.

What’s the difference between yttrium and YAG lasers?

YAG Lasers. YAG is the acronym for yttrium aluminum garnet (Y 3 Al 5 O 12 ), a synthetic crystal material which became popular in the form of laser crystals in the 1960s. Yttrium ions in YAG can be replaced with laser-active rare earth ions without strongly affecting the lattice structure, because these ions have a similar size.

What are the advantages of ytterbium over ND?

Ytterbium has several advantages over Nd: lower heat generation, absence of parasitic effects like up-conversion, cross-relaxation and concentration quenching. Alexander Quandt,

What kind of lasers are based on YAG crystals?

Definition: lasers based on YAG (yttrium aluminum garnet) crystals, usually Nd:YAG or Yb:YAG The term YAG laser is usually used for solid-state lasers based on neodymium-doped YAG (Nd:YAG, more precisely Nd 3+ :YAG), although there are other rare-earth-doped YAG crystals, e.g. with ytterbium, erbium, thulium or holmium doping (see below).