Description
Overview
The GAOTek High Precision Optical Power Meter is designed for use with an optical laser source for performing the optical loss measurements on fiber optic cables. It is lightweight, compact in size, and portable. It is also designed for cost-effectiveness. This device is integrated with auto-power-off, low power indication, and measurement interchanging functions.
Features
- Integrated with high performance optical detector
- Compact size, light weight, and portable
- Low power consumption
- User-friendly
- Integrated with auto-power-off, low power indication, and measurement interchanging functions
- Internal charging circuit, back light
- Low cost
Technical Specifications
| Calibrated Wavelengths | 3.35 x 10-5Â in , 5.12 x 10-5Â in, 5.16 x 10-5Â in, Â 5.86 x 10-5Â in, 6.10 x 10-5Â in, 6.40 x 10-5Â in (850 nm/1300 nm/1310 nm/1490 nm/1550 nm/1625 nm) |
| Detector Type | InGaAs |
| Connector | Interchangeable FC/PC, SC/PC |
| Accuracy | ±0.35db±10nW |
| Resolution | 0.01dB |
| Linearity | ±5% |
| Auto Power-off | Yes |
| Back-light | Yes |
| Reference Value | Yes |
| Measuring Range: GAO-OPM-109 A
GAO-OPM-109 B |
-60 dBm to +3 dBm @ 1550nm
-40 dBm to +23 dBm @1550nm |
| Tone Detection: GAO-OPM-109 A
GAO-OPM-109 B |
270, 1 k, 2 kHz (≥-40 dBm)
270, 1 k, 2 kHz (≥-20 dBm) |
| Operating Temperature | 14 °F to 122 °F (-10 ℃ to +50 ℃) |
| Storage Temperature | -4 °F to 158 °F (-20 ℃ to 70 ℃) |
| Power supply | Li-ion battery; 5 V AC/DC adapter |
| Dimension | 4.53 in x 2.44 in x 1.18 in (115 mm x 62 mm x 30 mm) |
| Net Weight | 0.31 lbs (140 g) |
Additional Information
LCD Description
Operating Instructions
- Turning the instrument on and off
Press the “ON/OFF” key briefly
The instrument powers on, and The LCD screen switches on with the short beeper of the buzzer. Please check the battery capacity and the connection of the battery in the battery plate if it fails.
Press the “ON/OFF” key briefly again
The instrument powers off, and backlighting switches off with the short beeper of the buzzer. When the battery capacity indicator flashes on the LCD, please recharge the battery or change new batteries. Otherwise, the instrument will be damaged by the shortage of the power.
Turn on/off the auto-off function
The instrument powers off automatically if no keypress in 10 minutes. Press the “ON/OFF” key for about 2 seconds to deactivate the auto-off function and the indicator will be disappear on the LCD. The instrument will be power off  if the battery capacity is too low to support the operation.
- Setting the wavelength
Press the “λ” key repeatedly until the desired wavelength is displayed. You can select from six possible wavelengths: 850 nm, 1300 nm, 1310 nm, 1490 nm, 1550 nm, 1625 nm . The instrument defaults to the wavelength of 1550 nm.
- Setting and checking reference level
Setting the reference level
Press and hold the “REF” key over 2 seconds to store the presently measured value as the new reference level for the current wavelength. Once the new reference level is set, the LCD displays 0.00dB with the beeper of the buzzer and the FHP1 switches to the dB measurement mode.
Checking the reference level
Press the “REF” key to display the stored reference level for the current wavelength and a sign of “REF” will be displayed on the LCD to indicate that it is a reference value. The displayed value only lasts 1 seconds. The instrument switches to the dB measurement mode.
 Note: 1.Long keypress for over 2 seconds, the unit will be shifted to “dB” automatically.
2.When the input laser power is modulated laser source, it will affect the setting of REF value. Please guarantee the input laser source is CW laser when setting REF value.
- Switching measurement mode
Press the “dBm/dB/mw” key, you can select three measurement modes: dBm for the power value, dB for the relative value and the mw value.
- The overflow of the measured power value
If the measured power value is higher than the highest value of the measuring range,the LCD screen will display “HI”. If the measured power value is lower than the lowest value of the measuring range,the LCD screen will display “LO”.
- Switching backlighting of the LCD on and off
Press the backlighting key. Backlighting switches on. Press the backlighting key again. Backlighting switches off.
- Connection with the optial laser source
Connecting with dual-wavelength laser source, the optical power meter can make accurate measurement of the fiber loss at the largest distance of more than 300 km(@1550). On-the-spot measurement will differ with the working wavelength, fiber attenuation and the testing environment.
Ordering Information
| Measuring Range | Tone Detection | |
| GAO-OPM-109-A | -60 dBm to +3 dBm @1550 nm | 270, 1k, 2 kHz (≥-40 dBm) |
| GAO-OPM-109-B | -40 dBm to +23 dBm @
1550 nm |
270, 1k, 2 kHz (≥-20 dBm) |
| Standard Accessories | FC/PC adapter, SC/PC adapter, Li-ion battery, AC/DC adapter, test report, carrying bag, user manual | |
| Optional Accessories | Interchangeable ST adapter; male FC to female LC adapter for LC connector |
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