The VLF-280 is a hand-held battery powered stabilized fiber optic laser source that emits visible (red) light at 650 nm. Its intended function is to allow an operator to identify the exact location of a break, microbend, or other discontinuity in a fiber optic cable. As the radiation is visible, light emanating from a break or microbend enables the user to locate the exact position of a fault even at very short distances that would not be detectable by conventional means such as an Optical Time-Domain Reflectometer, (OTDR). It is also useful for identifying a particular fiber in a cable by exciting the fiber to be located with visible radiation.

The fiber to be tested is connected to the source by means of a standard 2.5 mm fiber optic connector. The source may be used in one of its two modes, Modulated or Continuous. In the modulated mode the laser is turned on and off at a 6 Hz rate. This mode is helpful in permitting the user to identify the source radiation in the presence of high levels of ambient light. It also aids in conserving battery life.

The VFL-280 has a power saver feature and will power down after twenty minutes. This feature is easily deactivate by simply depressing the I/O key for three seconds when powering up the unit.

The usable range for fault location depends on the fiber, the intended use, such as fault finding or fiber identifying, type of fiber, the jacketing of the cable and the loss incurred at the fault. Several hundred meters to 1 or 2 Km are typical for singlemode fiber fault location, however fiber identification can be made at greater distances.

 

Other Fiber Optic Products

HPT-5100 Advanced Fiber Optic Loss Test Set - Automatically measures bi-directional fiber loss at multiple wavelengths along with ORL (optical return loss)

LTS-1500 Automated Hand-Held Fiber Optic Loss Test Set - Automatically measures fiber loss at three wavelengths, measures optical power and performs fiber identification functions

FPM-250 Fiber Optic Power Meter - Low cost shirt-pocket power meter with universal input connector, InGaAs detector, -75 dBm sensitivity and 200 hour battery life

FLS-1350 Dual Fiber Optic Laser Light Source - Low cost shirt-pocket  1310 nm, 1550 nm or dual wavelength stable laser light source with 270, 1000, or 2000 Hz modulation capability, battery and or wall mount supply operation

TIA-xxxx Optical to Electrical Converters - Optical receivers using InGaAs or Silicon detectors that cover a wide range of bandwidths and responsivity. Bandwidths from DC to > 14 GHz

LTX-510 High Speed Electrical to Optical Converters  -  Transmits analog signals from DC to 60 MHz over a multi mode fiber optic link

LTX-55XX Precision Analog/Digital Fiber Optic Links -  Comparison of all LTX55XX Converters for ease of application.

LTX-5510 Precision Analog Fiber Optic Link - Transmits analog signals from DC to 12.5 MHz with 12-bit precision along with four multiplexed digital channels

LTX-5515 Fast Precision Analog Fiber Optic Link - Transmits analog signals from DC to 25 MHz with 12-bit precision along with four multiplexed digital channels

LTX-5520 Word-Width Digital Fiber Optic Links - Transmits 16 bit parallel data over a single fiber. Words sampled at 50 MS/s

LTX-5525 Very Fast Word-Width Digital Fiber Optic Link - Transmits 16 bit parallel data over a single fiber. Words sampled at 100 MS/s

V-250 Fiber Optic Video Links - Transmits Rs-170, PAL and other video formats over fiber to distances up to 20 km depending on model

Fiber Optic Power Meter - Low cost shirt-pocket power meter with universal input connector, InGaAs detector, -75 dBm sensitivity and 200 hour battery life

Dual Fiber Optic Laser Light Source - Low cost shirt-pocket  1310 nm, 1550 nm or dual wavelength stable laser light source with 270, 1000, or 2000 Hz modulation capability, battery and or wall mount supply operation

Fiber Optic Video Links - Transmits Rs-170, PAL and other video formats over fiber to distances up to 20 km depending on model

Send mail to sales@terahertztechnologies.com with questions or comments about this web site.
Last modified: 02/07/08