A diode-cladding-pumped mid-infrared passively Q-switched Ho-doped fluoride fiber laser using a reverse designed broad band semiconductor saturable mirror (SESAM) was demonstrated. Nonlinear reflectivity of the SESAM was measured using an in-house Yb-doped mode-locked fiber laser at 1062 nm. Stable pulse train was produced at a slope efficient of 12.1% with respect to the launched pump power. M...

Q-switched lasers are prevalent in applications that require high intensity laser in ultra short pulses. For many medical applications of Q-switched lasers, it is crucial to have smooth and controlled pulse shapes [1, 2]. In dermatological applications, for instance, an irregular shape or duration of a laser pulse during pigmentation removal can cause serious damage to the surrounding healthy t...

BACKGROUND Rosacea treatments including oral/topical medications and laser therapy are numerous but unsatisfactory. OBJECTIVE To compare the effectiveness of the dual wavelength long-pulsed 755-nm alexandrite/1,064-nm neodymium: yttrium-aluminum-garnet laser (LPAN) with that of 585-nm pulsed dye laser (PDL) for rosacea. METHODS This was a randomized, single-blinded, comparative study. Full ...

SummaryBackground Most patients with facial pigmentary disorders have multiple disorders. However, there is no definitive treatment algorithm improving various simultaneously. Objectives To investigate the clinical efficacy and safety of combination Q-switched alexandrite carbon dioxide lasers ZO SKIN HEALTHⓇ for Patients/methods This prospective o...

OBJECTIVE To assess the alterations in human donor corneal tissue induced by Q-switched erbium (Er):YAG laser corneal trephination. METHODS Thirty human corneoscleral donor buttons unsuitable for transplantation were placed in an artificial chamber on an automated rotation device. Corneas were trephined with a Q-switched Er:YAG laser (wavelength, 2.94 microm; pulse duration, 400 nanoseconds) ...

BACKGROUND Low-fluence 1064 nm Q-switched Nd:YAG laser has recently been shown to be effective for the melasma treatment. OBJECTIVE The purpose of this study is to evaluate the clinical efficacy and safety of low-fluence 1064 nm Q-switched Nd:YAG laser treatment of melasma in Asian patients. METHODS Fifty patients with melasma underwent 15 weeks of weekly treatments, using a Q-switched Nd:Y...