Jonard Tools Multi-mode & Single-mode Fiber Optic Light Source

Jonard Tools®

Designed to provide 850/1300 nm or 1310/1550 nm wavelengths, this optical light source is the perfect tool for providing a stable light source for multimode or single-mode fibre measurements with FC/LC/SC (PC/UPC) adapters.

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Jonard Tools Multi-mode & Single-mode Fiber Optic Light Source

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Fibre Types

Multimode & Single-mode.

Connector Types

1.25 mm LC and 2.5 mm FC/SC.

Wavelengths (nm)

850, 1300, 1310, 1550.

Typical Output Power

-7 dBm.

Output Stability

± 0.05 dB / 15 min or ± 0.1 dB / 8 hr.

Operating Temperature

-10 ± 60°C.

Spectral Width

≤ 10 nm.

Modulation Frequencies

CW / 270 Hz / 1 kHz / 2 kHz.

Battery Type

(3) AA 1.5V alkaline batteries.

Storage Temperature

-25 ± 70°C.


7" x 3 3/16" x 1 1/4" (17.78 cm x 8.10 cm x 3.18 cm).


0.9 lb (408.6 g).

Key Features
  • Includes FC, SC, and LC adapters to directly connect to UPC/PC FC, SC, and LC fibre connectors.
  • Highly stable output power and wavelengths.
  • Has four different modulation outputs (CW, 270 Hz, 1 kHz, 2 kHz) at 850/1300 nm (multimode) and 1310/1550 nm (single-mode) wavelengths.
  • Flush button design makes it easy to use and prevents dust from entering the unit.
  • Shatter-resistant sleeve protects the light source from falls or other damage.
  • Backlit LCD screen provides a clear display, ideal for dark places.

Need Help?

Send us a message or contact our team on +44(0)1745 586600 and we will be happy to talk through your requirements.


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