The LG1000 dual-frequency laser series uses proprietary Zeeman-birefringent dual-frequency technology. Frequency difference can be customized from 1~20MHz without limiting output power. It avoids nonlinear error caused by converting circular to linear polarization and has broad potential in ultraprecision processing and lithography metrology. Function: A directly emitting dual-frequency laser with potted heating resistance wire for users developing their own interferometers. Dimensions: customizable; typical length 160mm, inner diameter ϕ38, outer diameter ϕ60. Power: >0.5mW. Ignition voltage: 4000V. Current: 3.5~4mA; typical 3.8mA. Frequency difference: customizable 0~20MHz; typical 6MHz. Life: >20000 hours. Power stability: 5%.
| Parameter | Value |
| Frequency difference | 5.5±0.5 MHz |
| Min Output optical power | > 500 μW |
| Spot size | 6, 9 mm |
Leice dual-frequency lasers serve as frequency-stabilized light sources for dual-frequency laser interferometers.
Entirely domestically produced helium-neon laser; assembled rather than blown construction; dual-frequency laser with proprietary intellectual property; customizable frequency difference, with output power independent of frequency difference; no nonlinear error from converting circularly polarized light to linearly polarized light.
Beijing Leice Technology Co., Ltd. (abbreviated as Leice Technology) is a high-tech enterprise and a Beijing specialized and sophisticated SME. It focuses on high-precision laser measurement instruments and equipment, providing full-chain technical solutions. Its main products include birefringent dual-frequency laser interferometers, non-contact laser feedback interferometers, optical element internal stress (phase retardation) measuring instruments, laser nano rulers, etc., serving industries such as mechanical manufacturing, microelectronics, and optical processing. The company has mastered core technologies for dual-frequency lasers and can mass-produce large frequency difference, high-power dual-frequency lasers. Its technology was selected as one of China's Top 10 Optical Industry Technologies in 2022. It is committed to being a premier supplier of precision measurement systems and solutions, helping users improve manufacturing capabilities and scientific research levels.