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Technology
- Optical Systems
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Products
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Fiber-Optic Measurement Technology
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Telecom measurement systems for lab & production
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Polarization Controllers and Polarization Scramblers
Polarization Controllers and Polarization Scramblers
Control polarization the precise way
Polarization-dependent effects often have undesirable effects in fiber-optic systems, such as polarization-dependent losses (PDL) in components and devices or the amplifier’s polarization dependence in EDFAs. You can control the polarization in two ways:
- With “scrambling”, the polarization state of the light with high frequency changes. In other words, the light is more or less depolarized
- Use polarization controllers if you would like a specific, fixed polarization state.
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Polarization Controller (Motorized) – Bench-Top
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Polarization Controller (Motorized) – Modules
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Polarization Controller (Manual) – Miniature
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Polarization Controller (Manual) – Paddles
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Polarization Scrambler – Bench-Top
The Properties:
- All-fiber configuration
- Low insertion loss <1 dB
- Large wavelength range of 1,400 – 1,650 nm
- Two and four-channel version
- Automatic scan mode
Specifications
| Single-Channel Mode | Two-Cascaded-Channels Mode | |
| 2 Quarter-Wave Plates | 4 Quarter-Wave Plates | |
| Wavelength range | 1520 ~ 1620 nm | 1400 ~ 1650 nm |
| Insertion Loss | < 0.5 dB (< 0.23 dB typical) | < 1.0 dB |
| Insertion Loss Variation | < ± 0.02 dB | < ± 0.03 dB |
| Polarization Extinction Ratio | > 20 dB (> 25 dB typical) | > 50 dB |
| Back Reflection | < -60 dB | < -60 dB |
| Rotational Resolution | 0.225°/step or 0.225° position | 0.225°/step or 0.225° position |
| Rotational Accuracy | ± 0.225° | ± 0.225° |
| Rotational Speed | < 6000 steps per sec (1350°/sec) | < 6000 steps per sec (1350°/sec) |
The Properties:
- All-fiber configuration
- Low insertion loss <1 dB/li>
- Automatic scan mode
- Very compact
- RS 232 interface
Specifications
| Operating Wavelength Range | 1520 ~ 1620 nm |
| Insertion Loss | > 0.5 dB (<0.3 dB typical) |
| Insertion Loss Variation (during rotation) | < ±0.02 dB |
| Polarization Extinction Ratio | > 20 dB (> 25 dB typical) |
| Back Reflection | < -60 dB (without connector) |
| Rotational Resolution | 0.225°/step |
| Rotational Accuracy | ± 0.225°/step or 0.225°/position |
| Rotational Speed | < 7000 steps per sec. (1575°/sec) |
| Power Supply | 12 V |
The Properties:
- All-fiber concept
- Patented principle without squeezing the fiber
- Super-compact
- Easy to integrate
- Low loss
Specifications
| IPC | Miniature IPC | |
| Operating Wavelength Range | 1520 ~ 1620 nm | 1520 ~ 1620 nm |
| Insertion Loss | < 0.5 dB (< 0.3 dB typical) | < 0.5 dB (< 0.3 dB typical) |
| Polarization Extinction Ratio | > 20 dB (> 25 dB typical) | > 20 dB (> 25 dB typical) |
| Back Reflection | < -60 dB (without connector) | < -60 dB (without connector) |
| Dimensions (W x H x D) | 88 x 17 x 19.5 mm | 88 x 6 x 10 mm |
The Properties:
- All-fiber configuration
- Classic paddle set-up (“pig’s ears”)
- Wavelengths: 830, 1,310, 1,550 nm
- Simple
- Affordable
The Properties:
- All-fiber configuration
- Swift scrambling at > 1 MHz
- Central wavelengths: 980, 1,310, 1,480, 1,550, 1,570, 1,590 nm
- Wide bandwidth > 40 nm
- Low loss < 0.7 dB
- Rack or module version optional
Models:
| PS3000 | PS3100 | PS3200 | |
| Output DOP | < 5% | < 5% | < 5% |
| Polarization modulation frequencies | 1310, 1480, 1550, 1590 nm | 1550, 1590 nm | 980, 1570 nm |
| Operating wavelength range | > 40 nm | > 40 nm each | > 80 nm |
