4 Channel Power Optical Meter High Precision Optical Test Equipment
Bare-fiber jig is optional for U8204 four-channel optical power
meter, so the test is more convenient and fast. The large-size
high-definition LCD screen displays the measurement parameters, and
the panel keys can directly set the parameters, making the
operation very simple. The power meter adopts a new data acquisition and processing
method, which has a larger power measuring range, faster response
speed and higher stability.
User interface description
1.Display screen
The LCD displays the real-time optical power measurement, working
wavelength, power reference value, and average time value of the
two channels.
2.key
The control operation and parameter setting of the power meter
instrument are executed by pressing the button.
3.Optical input channel
Laser signal input interface, adapter can choose standard FC/PC or
FC/APC adapter connection, specified by the customer when
purchasing the product.
4.Main engine front panel
U8204 Power Optical Meter specification
| 型 号 Model # | U8204 |
| Number of Channels | 4 |
| Power Range | +10 ~ -65dBm |
| Wavelength Range | 850 ~ 1700 nm |
| Calibration Wavelength | 850/908/1270/1290/1310/1330/1510/1530/1550/1570 nm |
| Sampling period | 100 us (10KHz) |
| Application Fiber Type | Standard SM and MM up to 62.5 um core size |
AbsoluteUncertainty (accuracy) at reference condition | ± 4% (1200 nm ~ 1610 nm) |
Relative Uncertainty (accuracy) at reference condition | ＜ 0.02 dB Typical |
| Linearity (power) | ≤ ± 0.06 dB (1200 nm ~ 1610 nm, 0~ -50dBm) |
| Return Loss | ＞ 40 dB |
| Operation Temperature | 0 ～ +40℃ |
| Storage Temperature | -30 ～ +80℃ |
| Recalibration Period | 2 years |
| Dimensions | 245 mm W, 105 mm H, 320 mm D |
| Weight | 2.0 kg |
The user asked the following questions
How do you measure optical power?
The NIST standard for all power measurements is an ECPR, or
electrically calibrated pyroelectric radiometer, which measures
optical power by comparing the heating power of the light to the
well-known heating power of a resistor. Calibration is done at 850,
1300 and 1550 nm.
What is good dBm for fiber?
Positive dBm means power greater than 1mw and negative means less
than 1mw. A good laser source for a singlemode link will have a
power output of ~ +3 to +6 dBm - 2-4mw - coupled into the fiber. A
VCSEL for multimode links should have a power around 0dBm - 1mw.
