Q-Switched ND: YAG Laser

Q-Switched Nd: YAG Laser

Q-Switched ND: YAG laser used for tattoo and pigment removal. Leading dermatology, plastic surgery, and laser specialty clinics value Q-switched lasers for their efficacy for a variety of skin issues, primarily unwanted tattoos.

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A professional quality-switched laser (Q-Switched) is a non-invasive laser that creates high-intensity pulsed beam light. The Q-Switched laser beam pulses last a mere billionth of a second. The energy emitted from a Q-switched laser is concentrated into very powerful pulses.

Q-Switched lasers are able to shatter tiny fragments of pigmentation or ink, stimulate collagen production or kill fungus. Because their contact with the skin is less than other lasers, Q-Switched lasers are known for not damaging surrounding tissue and causing unwanted side effects.

With advanced technology, Q-Switched lasers are used for many conditions, including the following:

• Tattoo removal
• Treatment of onychomycosis (toenail fungus)
• Age spots
• Sunspots
• Birthmarks
• Freckles
• Moles
• Spider veins
• Café-au-lait spots
• Telangiectasia
• Angiomas
• Port wine stains
• Skin rejuvenation

Types of Q-Switched Lasers

There are several types of Q-Switched lasers. The crystal rods inside the lasers differentiate the lasers. The rods allow the Q-Switched lasers to produce different wavelengths. These variable wavelengths determine what the Q-Switched laser will be used for.

Some of the Q-Switched lasers include:

1. Q-Switched Nd: YAG Laser is used mostly for non-ablative skin rejuvenation, darkened scars, and brown birthmarks. It is recognized for its ability to remove a wide range of tattoo colors.
2. Ruby Laser is used to removing rare tattoo colors like lime green and sky blue.
3. Alexandrite Laser is used for brown spots, sun spots, darkened scars, brown birthmarks, melasma, and its ability to remove black ink tattoos and rare tattoo colors like lime green and sky blue.

While every patient is different, each tattoo that is undergoing removal is different. Different laser wavelengths are required to remove different colors of tattoo ink.

Q-Switched lasers have some pretty significant differences, creating various advantages and disadvantages with each measure.

Active vs. Passive

Actively Q-switched (AQSW) and Passively Q-Switched (PQSW) laser devices are used across the world for their application of tattoo removal, among many other aesthetic procedures. The difference between the two is that actively Q-switched lasers have a more complex pulse production method that allows for greater pulse energy and peak power.

Passively Q-switched lasers are generally less powerful, but more affordable. Technologically speaking, AQSW devices utilize a Pockels Cell to release energy in one single, very powerful pulse, while PQSW devices use a Saturable Absorber which functions similarly but releases energy in a train of pulses. This means that an AQSW device is capable of higher peak power and thus, is more effective at late-stage treatments than a passively Q-switched device.

These lasers are relatively simple to tell apart. AQSW devices are usually large and more than likely have an articulating arm stemming from the top of the system. The AQSW systems are usually comprised of 7 optics, as well as some type of handpiece, allowing for a complete range of motion to treat any location on the body. Professional AQSW systems are not portable as they are sensitive to shock and vibration.

PQSW devices are generally smaller, as well as potentially portable. They come in the form of tabletop units or on-a-cart systems, but always have a gun-shaped treatment head attached with an umbilical cord, as opposed to an articulating arm. This cord contains voltage leads for the flashlamp as well as cooling fluid hoses (deionized water, in most cases). PQSW systems are less vulnerable to shock and vibration, but because the energy is released as a train of pulses, they are not as efficient as tattoo removal devices AQSW systems are.

Picosecond vs Nanosecond

Picosecond devices and AQSW nanosecond devices are much more similar than AQSW are to PQSW devices. One nanosecond is a billionth of a second, and one picosecond is a trillionth of a second. Picosecond systems may be more accurately referred to as sub-nano, quantitatively speaking. Traditional AQSW devices will have a 6-40 nanosecond pulse duration, while picosecond AQSW devices will vary between 500-800 picoseconds &#; essentially, making the pulse duration 6-10x faster, with equivalent system energy (i.e. .9-1.0 Joules).

The current claim is that picosecond devices can remove tattoos in fewer treatments because the pulse duration is shorter than conventional nanosecond Q-switched lasers. Additionally, the reduction in pulse duration is argued to create less thermal damage, thereby preserving more skin tissue and reducing side effects in the process. The clinical studies performed to research this point have not found picosecond devices to provide a significant statistical difference from the existing nanosecond technology. While a higher peak power is possible with a picosecond device, the point at which this becomes an important aspect in the removal process won&#;t present itself until potentially after the tattoo may already be removed.

How does the Nd: YAG laser work?

Laser technology has greatly improved the ability to treat melanocytic lesions and tattoos with the rapidly pulsed Q-switched neodymium: yttrium &#; aluminum &#; garnet (Nd: YAG) Laser. The laser treatment of pigmented lesions and tattoos is based on the principle of selected photothermolysis. The Q-switched laser systems can successfully lighten or eradicate a variety of benign epidermal and derma-pigmented lesions and tattoos with minimal risk of untoward effects.

Wavelength

532nm wavelength: get rid of freckles, and eyebrow tattoos.

nm wavelength: get rid of freckles and yellow-brown spot

nm wavelength professional for skin rejuvenation and face-deep cleaning

The Q-Switched Laser Tattoo Removal Process

Laser tattoo removal is the only method proven to remove tattoos without scarring. To remove a tattoo, the Q-Switched laser is pulsed over the tattoo, directing its light energy toward the ink. The energy is absorbed by the ink particles which then shatter into tiny fragments.

In the days following the laser procedure, the body&#;s immune system will flush away the shattered ink particles and cause the tattoo to fade. With more treatments, more ink will be shattered leaving the skin free of the tattoo.

Only Q-Switched lasers are able to produce the amount of energy to remove both dark and bright tattoos without scarring.

Related Products

Our company BVLASER (Bestview Laser) is a Q switched ND YAG laser tattoo removal machine manufacturer in China for more than 13 years. With years of development, our company built our R&D team for the laser research. We have series of beauty euipments, such as hair removal system, skin rejuvenation system, body sliming system, plastic surgery system. etc. 

Many of our customers will have questions about what machines are suitable for them. This post, we will share the questions you should know about the Q switch ND YAG laser machine. If you still do not know which machine you should choose, please contact us, we will provide you the professional solutions. 

What Does The Q Switch Laser Inlcude? 

Q-switch technology includes electro-optic Q-switching, acousto-optic Q-switching, dye-switching Q, color-core crystal Q-switching, and rotating mirror Q-switching. 

Among them, electro-optic Q-switching, acousto-optic Q-switching, and dye-switching Q are most commonly used. Electro-optic Q-switching, acousto-optic Q-switching is called active Q-switching, and dye-switching Q is called passive Q-switching. 

At present, Q-switched lasers already have many wavelengths, and beauty salons mainly use Q & 532, Q464, and Q755.

If you want a q-switched laser to remove tattoo, please check this q switched nd yag laser tattoo removal machine.

What Is The Working Principle Of The Q Switch Laser?

Using the principle of photo-blasting, the laser collects high-energy instantaneous emission. So that the laser of fixed wavelength penetrates the epidermis to the diseased tissue in a very short time. And the light-absorbing energy of the corresponding color group is rapidly exploded and bursts and the diseased tissue is destroyed. The chromophore will gradually fade until it disappears, and the surrounding normal skin tissue has almost no damage because it does not absorb the laser of a fixed wavelength.

With competitive price and timely delivery, MBT sincerely hope to be your supplier and partner.

What problems does Q-switch laser solve?

1. Treatment of freckles: Freckles are spotted, sesame-like brown or light brown spots. The laser emitted by the Q-switched laser can smoothly penetrate the skin on the lesion, enter the lesion, and treat the pigment in the lesion. The freckle pigment is completely fragmented and collapsed under the powerful laser irradiation. The solution, then let it dissipate on its own.

2. Treatment of Ota: Ota is a kind of birthmark. It is usually distributed around the eyelids, producing patches, or spots of blue, brown, black, or mixed colors. Laser treatment of Ota is to use the selective photothermal effect of light on different color objects, using different lasers with different nanometer values to selectively act on melanocytes in the dermis, so that it is instantly heated to gasification and pulverization, while other tissues of the skin are not Damaged, thereby removing melanin.

3. Washing tattoos and lip lines, eyeliner: Nowadays, due to pigment instability, design errors, and fashion changes, etc., the number of people who want to remove tattoos, lip liners and eyeliners is increasing. When a Q-switched laser with a specific wavelength is applied to an artificial dye, the dye molecules are vaporized, pulverized, and excreted, causing the color of the streaks to subside. This regression is seen at the time of treatment.

4. Treatment of port wine stains: Port wine stains are common in the face, neck, and scalp. The Q-switched laser technology utilizes hemoglobin in blood vessels to selectively absorb the energy released by a laser of a specific wavelength, resulting in damage and complete destruction of blood vessels, while the surrounding normal skin tissue is rarely absorbed, thereby achieving the elimination of vascularity. The ideal effect of skin lesions without damaging normal tissue.

In addition, Q-switch laser can also treat sunspots, seborrheic keratosis, cantharidin, coffee spots, post-inflammatory hyperpigmentation; Ito, Mongolian, blue sputum; chloasma, melanosis, partial pigmentation.

Do pigmentation treatments require the injection of anesthetic?

During the procedure, the person receiving the treatment will have slight acupuncture and no need to use an anesthetic. However, for some large-scale tattoos, Ota, etc., Because of the long treatment time, individual patients can be given topical anesthetics to relieve pain, no need to inject anesthetics.

How is the effect of Q-switch laser treatment on pigmentation?

In general, the effects of laser treatment of Ota, freckles and age spots are ideal, but not all pigmented diseases can be removed by laser. For example, the most common chloasma (commonly known as liver spot) in oriental women is generally in dynamic changes, and usually reappears or even worsens after laser treatment. Freckles or age spots are good, but please don&#;t get sunshine.

What are the advantages of Q-switched laser freckle?

1.  Selective treatment without damaging normal skin;

2.  Treatment time is short, no impact on work, life, learning;

3. No side effects and sequelae;

4. Efficient and safe.

What are the Q switch laser treatment course?

The regression time of pigment particles after laser treatment is generally 3 to 6 months. Due to the individual differences in the size, type, depth, color and individual skin color, metabolic capacity, age, etc. of different pigmented diseases, the time and extent of pigment granule regression after laser treatment are also different. 

The lighter the lesion, the younger the age, and the better the treatment, the better. Usually 2 to 3 months apart. In general, freckles, senile plaques, and other superficial pigmentary diseases need 1 to 2 times and deep pigmentary diseases such as Ota 5 5 to 10 times. 

What are the Q-switch laser treatment precautions?

1. Some lesions require multiple treatments.

2. Scars may appear after treatment.

3. The treatment site 5 to 7 days can not be wet, prevent infection.

4. Temporary pigmentation may be deepened or lost in the short term after treatment and will disappear after several months.

5. After treatment, pay attention to sunscreen (especially within 1 month).

6. Small area stains may appear slightly swelling in the local after treatment. When a large area of pigmentation is treated, especially around the eyes, there will be obvious swelling, which usually disappears after 3 to 5 days.

7. After treatment, may have mild redness and pale brown sputum, pay attention to wound protection and cleaning, you can use some lubricated drugs, suede to let it fall off.

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