BB-500-11-ND Variable Optical Attenuators

Product number: SW10537

Manufacturer: OZ Optics

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BB-500-11-ND Variable Optical Attenuators OZ Optics Datasheet

Product information "BB-500-11-ND Variable Optical Attenuators"

Neutral Density Filter, Pigtail Style; Fiber Type SM, MM, PM; 800 to 1625 nm; Connector Type NTT-FC/PC, ST, SC, LC/PC, other; Attenuation IL to 40 dB

OZ Optics’ BB-500-11-ND series of compact PC board mountable, pigtail style variable attenuators are designed to meet Telcordia requirements. These attenuators with low backreflection can be used for 1300 nm and 1550 nm, as well as for C, L and S bands, with minimal changes in the insertion loss. Mounting holes provide easy attachment to PC boards and patch panels. The mounting hole patterns and attenuator sizes can be modified to meet customer requirements.The attenuators consist of two baseplates, each baseplate containing a fiber followed by a collimating lens.

The attenuator is prealigned for optimum coupling efficiency using a patented tilt alignment technique. A variable neutral density filter is used to provide more uniform attenuation in multi mode applications than the blocking screw technique. The attenuation is controlled by a turn screw on the side of the attenuator, which controls the position of the filter.

Variable attenuators based on the neutral density filter are ideal for multi mode fiber applications where one may be concerned about modal noise. When blocking style attenuators are used with multi mode fiber, some modes are blocked, while others are transmitted. This can produce 1 dB or greater modal noise fluctuations with coherent sources. A variable attenuator using a neutral density filter is not as strongly affected by modal noise. However, neutral density filter attenuators offer lower attenuation range (around 40dB) and can only handle about 50mW of power. While generally used for multi mode applications, OZ Optics can also produce single mode and polarization maintaining versions.

Key Features:

Neutral Density FilterRugged and Compact Size
Wide Wavelength Range
Single Mode, Polarization Maintaining and Multi Mode Fiber Versions
Low Polarization Dependent Loss (PDL)
Low Wavelength Dependence
Mode Insensitive Attenuation
Low Backreflection
Designed to Meet Telcordia Requirements

Applications: Optical Power Equalization and Power Control for WDMs and Multi-channel Optically Amplified Networks; Telecommunications; CATV; LAN; Test and Measurement; Receiver Padding; Optical Sensors

Manufacturer "OZ Optics"

Located in Canada's capital city of Ottawa and established in 1985, OZ Optics Ltd. is a leading worldwide supplier of fiberoptic products for existing and next-generation optical networks such as components and test equipment. Target markets include telecommunications, cable television, medical, military, industrial, aerospace, petrochemical and educational sectors. OZ Optics is ISO 9001:2000 and Telcordia certified.

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BB-600-11 Variable Optical Attenuators

Reflective Style, Manually (Screw) Controlled; Fiber Type SM, MM, PM; 400 to 1625 nm; Connector Type NTT-FC/PC, ST, SC, LC/PC, other; Attenuation up to 40, 60 dB OZ Optics’ BB-600-11 series of compact PC board mountable, reflective style, variable attenuators with low backreflection can be used for C, L and S wavelength bands, with minimal changes in insertion loss. Reflector style housings are ideal for applications where the input and output fibers must be attached to the same side of the attenuator. Mounting holes provide easy attachment to PC boards and patch panels. The BB-600-11 series of reflector style attenuators contain either a variable neutral density filter or a blocking plate depending on the attenuator version selected. The blocking style is ideal for high power (over 50 mW) applications, while the neutral density filter provides more uniform attenuation in multi mode applications. The attenuation is controlled by a turn screw on the side of the attenuator, which controls the position of the filter or plate. Key Features: Neutral Density Filter or High-power Versions Available Rugged and Compact Wide Wavelength Range Single Mode and Multi Mode Fiber Versions Low PDL and Wavelength Dependence Mode Independent Attenuation in Multi Mode Applications with Neutral Density Filter Version Wide Attenuation Range Low Backreflection Applications: Optical Power Equalization and Power Control for WDMs and Multi-channel Optically Amplified Networks; Telecommunications; CATV; LAN; Test and Measurement; Receiver Padding

Product number: SW10539

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