The ASE-0850-02 is an ASE light source in the 850 nm wavelength range using Er-doped fluoride fibers as a gain medium. This wavelength range is used for multimode fiber transmission. This ASE source features stable output in this wavelength range, and is suitable for reliable optical component testing used for the 850-nm MMF transmission.

Another area of use is in machine vision. Human eyes cannot see the 850 nm wavelength range, but silicon photodiodes are still very sensitive in the 850 nm wavelength range. Illuminating objects using the 850 nm therefore enables us the use of standard Si-based CCD or CMOS cameras for high-brightness machine vision, while no brightness is felt for human eyes.

ASE sources are inherently incoherent and unpolarized, and are preferred when interference or speckle need to be minimized.

■ Features

Novel wavelength range
Stable spectral output power
Cost effective

■ Applications

Optical measurement systems
Optical component spectral tests
Optical sensing
Scientific applications
Machine vision


What is ASE light source?


■ Bench-Top type Specifications

Item ASE-0850-02 (With isolator)
Output Wavelength Band
850nm band
Total Output Power
> +3dBm (>2mW)
Spectral Power Density
> -20dBm/nm@840-853nm

Isolation of return light into the instrument

>35dB (@20 Deg.C)
Output Fiber
Output Power Stability *1
< +/- 0.01dB : Example
Output Optical Connector
88mm(H) x 260mm(W) x 350mm(D)
Operation Temperature
0 ~ 40 Deg. C
Storage Temperature
-10 ~ 60 Deg. C
5 kg
Power Supply
AC100 – 240V (50/60Hz)

*1: 15minutes stability after 1 hour warm-up
*2: Not including protrusions

  • The specifications are subject to change.
  • All functions, characteristics and exterior design can be optimized according to customer requirements, and please feel free to contact FiberLabs sales engineers.