Johansson 4060 Fixed Optical Attenuator – 5 dB, SC/APC Single-Mode & 1260-1650 nm
Johansson 4060 Fixed Optical Attenuator – 5 dB, SC/APC Single-Mode & 1260-1650 nm
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Description
Description
The Johansson 4060 is a fixed inline optical attenuator providing precisely 5 dB of signal reduction for single-mode fiber systems. It uses an SC/APC connector interface, making it directly compatible with the SC/APC ports found on optical nodes, amplifiers, and splitters in FTTH and CATV fiber distributions.
The 4060 is used where a moderate signal reduction is required to bring slightly overdriven input levels into the optimal operating range of downstream equipment, maintaining signal integrity without the cost of a variable attenuator.
Key Features
- Fixed 5 dB attenuation level with ±0.5 dB accuracy
- SC/APC connector on both ends for low-reflection termination
- Single-mode fiber compatibility across the full C- and L-band window
- Operating wavelength range of 1260–1650 nm covers all common FTTH and CATV wavelengths
- Return loss greater than 65 dB — minimises back-reflection into laser sources
- Polarisation dependent loss below 0.2 dB
- Maximum optical input power of 200 mW
Product Benefits
- Moderate 5 dB fixed reduction suits nodes where only slight signal correction is needed
- High return loss protects upstream laser sources from reflected signal damage
- Low polarisation dependent loss ensures consistent performance regardless of fibre orientation
- Compact inline form factor installs directly between any two SC/APC connections
Technical Specifications
- Attenuation Level: 5 dB
- Connector Type: SC/APC
- Cable Type: Single Mode
- Operating Wavelength: 1260–1650 nm
- Return Loss: >65 dB
- Attenuation Accuracy: ±0.5 dB
- Polarisation Dependent Loss: <0.2 dB
- Maximum Optical Input Power: 200 mW
- Operating Temperature: -40 to +85 °C
Why You'll Love It
- No power supply needed — passive device that installs in seconds
- Wide operating temperature range suits both indoor equipment racks and outdoor enclosures
- Pairs with the Johansson 4061 (10 dB) for flexible link budget adjustment
- SC/APC interface is the industry standard for low-reflection CATV and FTTH nodes
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