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Home » Products » Optical Test Equipments » VT815 Laser Source

VT815 Laser Source

VT815 Laser Source
VT815 Laser Source
Product Code : VT815
Product Description

Brief Introduction

VT815 Laser Source can support stable laser signal on many kinds of wavelength, it can identify fiber, test fiber loss and continuity accurately, help to evaluate transmission quality of fiber chain as well. It supplies high performance laser source for field test and lab project development. With features of durable structure, large LCD display with backlight and friendly operation interface, the VT815 advanced stability handheld optical light source provides a lot of convenience for your field work. High stability of output power and quite stable output wavelength, it is an ideal instrument for optical network installation, trouble shooting, maintenance and other optical fiber related systems. It can be widely operated for LAN, WAN, CATV, remote optical network, etc. Cooperate with ST800 series Optical Power Meter; it can distinguish fiber, test optical loss and connection, help to evaluate fiber transmission performance.

Key Features

1. Handhold, easy to operate

2. Two to Four wavelength optional

3. Continuous light, modulated light output

4. Output double wavelength or three wavelengths through single tie-in

5. Output three or four wavelength through double tie-in

6. High stabilization

7. Auto 10 minutes shut off function

8. Big LCD, intuitive, easy to use

9. LED backlight switch on/off

10. Auto close back light in 8 seconds

11. AAA dry battery or Li battery

12. Battery voltage display

13. Low voltage checking and shut off to save energy

14. Automatic wavelength identification mode (with the help of corresponding power meter)


Technical Specifications

Key Tech Specifications

Emitter type


Output wavelength switch (nm)

VT815 Wavelength: 1310±20nm, 1550±20nm

VT815B Wavelength: 1310±20nm, 1550±20nm, 1490±20nm

VT815C Wavelength: 1310±20nm, 1550±20nm, 850±20nm, 1300±20nm

VT815D Wavelength: 1310±20nm, 1550±20nm, 1625±20nm

VT815E Wavelength: 1310±20nm, 1550±20nm, 650±20nm

VT815 Multi Mode: 850±20nm, 1300±20nm

Spectral width (nm)


Output optical power (dBm)

≥-7, ≥0dBm(customized),650 nm≥0dBm

Optical Output Mode

CW continuous light

Modulization output: 270Hz, 1kHz, 2kHz, 330Hz

---AU automatic wavelength identification mode (It can be used with the help of corresponding power meter, red light doesn’t have automatic wavelength identification mode)

650nm red light:2Hz and CW

Power Stability (dB) (Short time)


Power Stability (dB) (Long time)


General specifications

Working temperature (℃)


Storage temperature (℃)


Weight (kg)


Dimension (mm)



2 pieces AA dry battery or Li battery, LCD display

Battery working duration (h)

dry battery about 15 hours