Polycom Photonics High Precision Optical Sensing Lasers

Polycom Photonics Co., Ltd focuses on the R&D and mass production of high-stability, narrow-linewidth laser sources for optical sensing applications. The company provides cost-effective and high-precision optical sensing lasers with a wavelength coverage from 689nm to 2350nm. Featuring accurate wavelength control and outstanding spectral stability, these laser products are widely applied in atomic spectrum detection, element precision measurement and professional optoelectronic sensing systems.

The EP689-0-DM series is a flagship laser solution customized for strontium (Sr) precision detection. Based on advanced discrete mode technology, this integrated cavity-free laser delivers stable and precise optical output at the 689nm absorption line, fully meeting the technical requirements of strontium atom detection and atomic spectral analysis.

With mainstream available wavelengths of 689nm and 691nm, the laser supports dual tuning modes via temperature and current adjustment. Its low sensitivity to mechanical vibration ensures consistent spectral performance in complex working environments, eliminating detection errors caused by external interference.

To adapt to diverse system integration requirements, the EP689-0-DM series supports multiple package types, including 14-pin butterfly package, TEC-equipped TO39 package, TO56 package, and DX-1 integrated module with built-in driver and TEC controller.

Key Technical Specifications

Central Wavelength: 689nm
Side Mode Suppression Ratio (SMSR): 40dB (typical)
Fiber Output Power: 10mW
Laser Linewidth: Less than 3-4MHz
Features: Integrated cavity-free design, low vibration sensitivity, flexible current and temperature tuning, high spectral accuracy and stability