Русский
Deutsch
Español
Français
INDUSTRY NEWS
2. Theoretical Analysis of OPOAccording to the quasi-phase matching condition, the energy and momentum conservation laws during the OPO nonlinear three-wave frequency conversion process are as follows: 1/λp = 1/λs + 1/λi (1)np/λp - ns/λs - ni/λi - 1/Λ = 0 (2) In this equation: λp
2026/04/22 15:48
2. Experimental SetupThe OPO system, as illustrated in Figure 2, comprises a polarizing beam splitter (PBS), a half-waveplate (HWP), a Faraday rotator (FR), a coupling lens group (M1 and M2), cavity mirrors (M3 and M4), an MgO:PPLN crystal, a temperature-controlled oven, and a beam splitter (M5).
2026/04/07 17:13
1. Introduction With the rapid development of fiber pulse lasers, fiber pulse lasers are widely used in OPO technology. Compared with all-solid-state lasers, fiber lasers have the advantages of flexible and compact structure, high reliability, good beam quality and low cost, and have become the
2026/03/03 16:23
Research on Mid-Infrared Parametric Oscillators - Part 01 1. Introduction Lasers in the 3–5 μm band occupy an atmospheric window and have significant applications in laser communication, atmospheric monitoring, and laser medicine. Optical parametric oscillation (OPO) technology, as an important
2026/01/29 20:02
4. Conclusion To obtain high-power tunable short-wavelength mid-infrared ultrashort pulses, this paper utilizes an erbium-doped fiber laser (EDF-LAD) and employs nonlinear amplification and compression methods. Part of the energy is broadened to 1.03 μm via a highly nonlinear fiber, serving as seed
2025/12/12 10:49
3 Difference frequency generation of high-power mid-infrared ultrafast light sources 3.3 Differential frequency generation of 2-5 μm high-power tunable mid-infrared ultrashort pulses To obtain a 2-5 μm high-power tunable mid-infrared ultrashort pulse, a 1.55 μm high-energy ultrashort pulse is used
2025/11/07 14:14
3 Difference frequency generation of high-power mid-infrared ultrafast light sources 3.2 Difference frequency generation for producing high-power mid-infrared ultrashort pulses at 3μm The time delay line was adjusted to synchronize the pump pulse and signal pulse in time, and the variation of mid-
2025/10/15 15:43
3 Difference frequency generation of high-power mid-infrared ultrafast light sources 3.2 Difference frequency generation for producing high-power mid-infrared ultrashort pulses at 3μm We built a DFG (Difference Frequency Generation) system based on a high-power dual-wavelength ultrafast fiber laser
2025/10/02 11:51
3 Difference frequency generation of high-power mid-infrared ultrafast light sources 3.1 High-power tunable dual-wavelength ultrafast fiber laser The other pulse train serves as the seed for the erbium-doped CPA system. After fiber broadening, two-stage single-mode fiber amplification, one-stage
2025/09/25 13:29
3 Difference frequency generation of high-power mid-infrared ultrafast light sources3.1 High-power tunable dual-wavelength ultrafast fiber laser Fig.4. High power tunable dual-wavelength (1.55μm/1μm) ultrafine fiber laser experimental device diagram Based on the difference frequency generation
2025/09/07 16:09
2 Mid-infrared theory and simulation based on PPLN crystal (www.wisoptic.com) difference frequency generation The above analysis demonstrates that pump and signal beam energies significantly influence idler energy generation during DFG. The magnitude and relationship between these two energies
2025/08/12 09:29
2 Mid-infrared theory and simulation based on PPLN crystal difference frequency generationThe process of ultrashort pulses generating mid-infrared in the PPLN crystal (www.wisoptic.com) is described by the three-wave coupling equation:Ai (z,τ) represents the complex amplitude of the i-th pulse, i
2025/07/29 18:10