Focus on Fiber Optical(FTTH) Equipment & Tester & Tools Since 2011.

FOT3120 Tunable Light Source

FOT3120 is a 3.5-inch color screen version of the newly developed light source with adjustable output power. It can provide up to six-wavelength light source output, with a continuous 15dB power adjustable range, and can choose single-channel and dual-channel output. It is matched with our company. The power meter has the function of automatically identifying the wavelength when in use, which can conveniently and accurately measure the loss of the optical fiber link.




Product name

FOT3120 Tunable Light source

Default wavelength (nm)

1310/1550 (customizable)

 Spectral width (nm)

5 (customizable)

Typical output power (dBm)


Stability (dB, 15min)


Adjustable range of output   power (dB)


Adjustable power minimum step   (dB)


Modulation frequency (HZ)

CW, 270, 330, 1K, 2K

Interface Type

(FC/SC)/PC (customizable)


3.5 inch TFT color screen

Visual fault locator   (optional)

Wavelength (nm)


Output power (mW)


other parts

Power supply

3.7V 4000mAh lithium   battery/Micro USB

Automatic shutdown time (min)

Can be set by yourself

Communication Interface

Micro USB

Continuous working time (H)







1.3.5 inch color screen display

2.Maximum support 6 wavelength output

3.Support user self-calibration

4.Support single channel or dual channel output

5.Continuously adjustable output power

6.Wavelength automatic identification function

7.Support continuous light CW and modulated light output

8.Support visual fault locator (optional

You maybe like

Product Message