[
在此处键入
]
[
在此处键入
]
23
The VFL has two emission modes
CW mode，under this mode, FHO1500 will emit continuous visible light.
Flash mode，under this option, FHO1500 will emit visible light flashing at the frequency of
1Hz/2Hz.
Press【CLOSE】【ESC】button to turn off the VFL or exit the VFL function.
Warning: when using the VFL module, do not aim the VFL port at the human eye, otherwise
it may cause irreversible damage to the eye!
6
Stable laser source module
The FHO1500 is equipped with a stable laser source (output power>-13dBm) for measuring fiber
loss with an optical power meter. The output wavelength can be switched between 1310nm and
1550nm.
LS OFF
LS ON(CW mode)
LS ON(270Hz mode)
OPEN：
Turn on the stable laser source function
CLOSE：
Turn off the stable laser source function
WL：
Single wavelength 1625nm
MODE：
Switching modulation frequency output mode between 270Hz/1kHz/2kHz.
Back:
Exit the laser source module and return to the main menu.
Warning: when using the stable laser source module, do not aim the laser port at the
human eye, otherwise it may cause irreversible damage to the eye!
7
Optical power meter module
FHO1500 is equipped with a normal optical power meter module for detecting the power of
optical fiber signal and measuring the fiber loss with the laser source.
1625nm
1625nm
1625nm