Optical Light Sources OLS-300

Optical Light Sources: OLS-300

FOT Optical Light Source

FOT Optical Light Source

FOT Optical Light Sources

  FOT OLS-300 series optical light source can provide 1 to 4 output wavelengths to meet specific requirements, including the 650nm red source and the 1310/1550nm wavelengths for single mode fiber or the 850/1300nm wavelengths for multimode fiber, as well as other wavelengths according to customer needs.


  • 1~4 output wavelengths which can be optional according to needs
  • Backlight LCD display supports night operation
  • CW, 2Hz modulation output at 650nm, and CW, 270Hz,1KHz,2KHz
  • Modulation output at other wavelengths
  • High stability output power
  • Stable output wavelength 


Emitter TypeFP-LD,LED or others please specify
Output Power(dBm)-6~-7(1310/1550nm),>0 (650nm)
Output Stability+0.05dB/15mins;  +0.1dB/ 8hours
Modulation FrequenciesCW / 2(650nm) / 270, 1K,2K (1310nm/1550nm)
Optical ConnectorFC/PC
( Interchangeable FC/SC/ST connectors can be optional)
Power SupplyAlkaline Battery(3 AA 1.5V batteries)
Battery Operating Time(hour)45
Operating Temperature(oC)-10 ~ +60
Storage Temperature(oC)-25 ~ +70

  Remark: OLS300B Output Power(dBm) is -7dBm,OLS300BB is 0 dBm.

Optical Light Sources

  While some fall under the multipurpose category, for example, automated features, optimized for specific tasks such as detecting faults, breaks and microbends in the fiber.
  Since the key is choosing the right tool (light source) for our jobs. Now let us focus on the light source working on FTTH/PON area.
  A straightforward instruments let you accurately measure signal attenuation during fiber-optic cable deployment in FTTx/PON access networks and LAN/WAN links, certify premises networks, and perform any other task related to general outside plant installations.

FOT Optical Light Source

OLS300 optical light sources

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