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The pump source, gain material, and resonant cavity are the three elements that make up a laser. Due to the selective effect of the resonant cavity on the lasing frequency, multi longitudinal mode operation is one of the characteristics of fiber lasers based on traditional resonant cavity structures, manifested as periodic beat peaks in the radio frequency (RF) spectrum and periodic fluctuations i...
On January 13, 2025, Thorlabs announced the acquisition of long-term partner Praevium Research, a developer of high-speed tunable VCSEL. In the future, Praevium will continue to operate as a department of Thorlabs under the name Praevium Research at its existing locations in California, while retaining its current leadership.It is understood that Christopher Burgner will serve as the general man...
Zhao Yun/Columbia Engineering Company provided an advanced schematic of a photonic integrated chip, which aims to convert high-frequency signals into low-frequency signals using all optical frequency division.Scientists have built a small all optical device with the lowest microwave noise ever recorded on integrated chips.In order to improve the performance of electronic devices used for global n...
Recently, Bitsensing, a leading provider of advanced radar solutions in South Korea, announced the successful completion of Series B financing, with a financing amount of up to $25 million (approximately RMB 181.6 million).This major investment is led by a series of well-known venture capital firms and strategic investors, which not only demonstrates Bitsensing's leading position in the radar tech...
Researchers at Rensselaer Institute of Technology have developed a device that operates at room temperature, which is the first topological quantum simulator to operate under strong light matter interaction mechanisms, making high-tech research easier in cutting-edge ways.Researchers at Rensselaer Institute of Technology have developed a device no larger than human hair, which will enable physicis...