HIGH POWER YB FIBER LASER WITH PICOSECOND BURSTS AND THE QUASI-SYNCHRONOUSLY PUMPING FOR EFFICIENT MIDINFRARED LASER GENERATION IN OPTICAL PARAMETRIC OSCILLATOR

A fiber laser-pumped high-power burst-mode-operated picosecond mid-infrared (IR) laser at 3.8 μm Short Set is reported.A gain-switched distributed Bragg reflector laser diode with a pulse repetition rate (PRR) of 138 MHz and pulse duration around 200 ps was applied as the seed laser of a master oscillator power amplifier (MOPA)-structured Yb

Objective: Jugular foramen of human skull is one of the most interesting foramina.It is a complex bony canal, numerous vital structures, including nerves and vessels are transmitted through it.Most of the intracranial and extra cranial lesions of posterior cranial fossa might affect the structures in jugular foramen in addition to intrinsic abnorma

Holocene fire records from charcoal are critical to Melatonin understand linkages between regional climate and fire regime and to create effective fire management plans.The Hudson Bay Lowlands (HBL) of Canada is one of the largest continuous peatland complexes in the world and is predicted to be increasingly impacted by wildfire.We present three ch

Fault diagnosis for large-scale industrial production systems has attracted considerable research interest in response to the complex, multisource, and precision requirements of these processes.Fault diagnosis is crucial for the Oven Element safe, reliable, and real-time maintenance of industrial production processes.This work presents a comprehens

Abstract Background Vitreous biopsy is a common technique used to guide management of acute endophthalmitis and help differentiate between infectious and inflammatory conditions.Currently, in-clinic vitreous biopsy is performed with a 25-gauge needle, without the ability to cut vitreous, potentially leading to reduced diagnostic yield.Recent work d