LISER™ Light Source

Externally controlled, FC connectorized, broadband, surprisingly compact, literally “cool,” and noticeably silent, the LISER™ light source generates intense CW or pulsed light of set intensity profile and repetition rates. LISER™ stands for Laser-Induced Spontaneous Emission of Radiation produced when laser diodes focus on luminescent materials. It integrates the cooling system, laser diode and LED drivers, focusing optics, and electronic control interfaces with the LISER™ module and LED or Laser Diode modules. The LISER™ module focuses the light from 5 blue laser diodes within a small round spot on Ce:YAG crystal inducing it to emit 150 nm broad light spectrum centered at 560 nm. Initially designed for 200 µm core diameter optical fibers with a 0.53 numerical aperture, this light source is well-suited for other optical fibers having FC connectors. The fiber-coupled LISER™ module output power increases with fiber’s numerical aperture and core diameter (<600 µm.) LED or Laser Diode modules provide additional spectral bands.