The optical power meter OPM200 is designed for precise, high speed measurement of optical power in the μW to mW range. The output is a voltage linearly proportional to the input power. The gain of the OPM200 is fixed.
The OPM200 amplifier employs high quality photodiodes and precision transimpedance input stages to provide for low offset and high linearity throughout the full dynamic range.
These optical power monitors are particularly useful for the measurement of rapidly changing optical signals. These units have a particularly high bandwidth of 10MHz allowing monitoring of high frequency noise components of many light sources. The output is a voltage linearly proportional to input power. The fast response time at high signal-noise-ratio makes the OPM200 series particularly useful in systems control feedback loops.
The OPM200 series is insensitive to electromagnetic interference by design, an important factor when working in “dirty” industrial environments. These units are provided in OEM-style enclosures. The case wings provide for mounting on standard 25mm and 1″ optical table tops and for OEM applications.
The range of applications for optical power monitors is very broad. The OPM200 series is especially conceived for applications in the manufacturing environment of telecommunications components. Typical applications may be found in measuring:
Components:
lasers, ASEs, fibre coupled LEDs
fibres, connectors, couplers
switches, multiplexers, demultiplexers
isolators, circulators
filters, fibre bragg gratings (FBGs)
amplifiers
Parameters:
output power
optical return loss (ORL)
insertion loss
polarization dependant loss (PDL)
bandwidth
crosstalk
transient behaviour
polarization dependant bandwidth (PDBW)
| Parameter | Conditions | Si, InGaAs | Ge | Units | ||||
|---|---|---|---|---|---|---|---|---|
| Input | ||||||||
| Wavelength range | UV-Si VIS-InGaAs x2.0-InGaAs x2.5-InGaAs | 200 – 1000 400 – 1600 700 – 2000 700 – 2490 | 800 – 1600 | nm | ||||
| Power ranges (full scale) | 4.51 | 452 | mW | |||||
| Noise equivalent power (NEPRMS ) | 0.3 (max) | 3 (max) | µW | |||||
| Polarization Dependant Loss (PDL) | 0.1 | 0.1 | dB | |||||
| Fibre Type | single mode, multi mode (Ø core ≤ 62.5µm; NA ≤ 0.275) | single mode, multi mode (Ø core ≤ 62.5µm; NA ≤ 0.275) | ||||||
| Receptacles | FC, SMA, free beam | FC, SMA, free beam | ||||||
| Output | ||||||||
| Function | Linear analogue : Vout = scale faktor x Iin | Linear analogue : Vout = scale faktor x Iin | ||||||
| Output scale | 1 | 0.1 | V/mW | |||||
| Output range (full scale) | 4.4 – 4.63 | V | ||||||
| Connectors | BNC4 and DB9 | BNC4 and DB9 | ||||||
| Rise / Fall time (10% – 90%) | 70 (max) | 70 (max) | ns | |||||
| Setting time (1%) | 100 (max) | 100 (max) | ns | |||||
| Accuracy | ± 5 (min) | ± 5 (min) | % | |||||
| Reproducibility | ± 0.5 (min) | ± 0.5 (min) | % | |||||
| Linearity | ± 0.1 (typ) ± 0.2 (max) | ± 0.1 (typ) ± 0.2 (max) | dB | |||||
| Output impedance | 50 (max) | 50 (max) | Ω | |||||
| Power supply | ||||||||
| Type | wall plug (supplied) | wall plug (supplied) | ||||||
| Dimensions | 30 x 50 x 60 | 30 x 50 x 60 | mm | |||||
| Dimensions | ||||||||
| 1 channel | 1055 x 45 x 116 (w x h x l) | 1055 x 45 x 116 (w x h x l) | mm | |||||
| 2 channels | 1055 x 66 x 116 (w x h x l) | 1055 x 66 x 116 (w x h x l) | mm | |||||
| 4 channels | 1055 x 106 x 116 (w x h x l) | 1055 x 106 x 116 (w x h x l) | mm | |||||
1 Linearity guaranteed to 1 mW (0 dBm) for Si and 7mW (8.5 dBm) for InGaAs.
2 Linearity guaranteed to 5mW (7 dBm).
3 Linearity guaranteed to 1 mW (0 dBm) for Si and 7mW (8.5 dBm) for InGaAs.
4 Adapters for other connector systems available.
5 130 mm including case wings.
Instruments
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