(PM)VOA Variable Optical Attenuators

Pigtail Style, Optional Removable Filter; Fiber Type SM, PM, MM; 440 to 1625 nm; Connector Type NTT-FC/PC, ST, SC, LC, MU, other; Attenuation 5 to 30 dB OZ Optics’ (R)ND-11 series of expanded beam style neutral density fixed attenuators are ideal for multi mode applications and for applications where attenuating fibers are not available or usable. These pigtail-style attenuators provide mode independent fixed attenuation when used with multi mode fibers. The insertion loss will not depend on how the light is launched into the fiber. This is a significant advantage over other attenuator designs. The attenuators consist of a set of collimating and focusing optics and a central baseplate containing the filter. The expanded beam design permits higher power handling than plug style attenuators. The filters themselves can be either permanent (ND-11 series) or removable (RND-11 series). This provides great flexibility for experimentation. Key Features: Mode Independent Attenuation Level Rugged and Compact Size Pigtail Style Removable Filter Versions (RND-11) Wide Wavelength Range Single Mode, Polarization Maintaining, and Multi Mode Fiber Versions Expanded Beam Technology for Flexible Design Applications: CATV, LAN and Telecommunications; Receiver Padding; Test and Measurement; Optical Power Equalization; Research & Design

Receptacle Style, Optional Removable Filter; Fiber Type MM; 440 to 1625 nm; Connector Type NTT-FC/PC, ST, SC, other; Attenuation 5 to 30 dB OZ Optics’ (R)ND-200 series of expanded beam style neutral density fixed attenuators are ideal for multi mode applications and for applications where attenuating fibers are not available or usable. These receptacle-style attenuators provide mode independent fixed attenuation when used with multi mode fibers. The insertion loss will not depend on how the light is launched into the fiber. This is a significant advantage over other attenuator designs. The attenuators consist of a set of collimating and focusing optics and a central baseplate containing the filter. The expanded beam design permits higher power handling than plug style attenuators. The filters themselves can be either permanent (ND-200 series) or removable (RND-200 series). This provides great flexibility for experimentation. Key Features: Mode Independent Attenuation Level Rugged and Compact Size Receptacle Style Removable Filter Versions (RND-200) Wide Wavelength Range Suitable for Multi Mode Fibers Expanded Beam Technology for Flexible Design Applications: CATV, LAN and Telecommunications; Receiver Padding; Test and Measurement; Optical Power Equalization; Research & Design

Fixed; Fiber Type SMF-28; 1425-1605 nm; Fiber Length 0.5, 1 m; Connector Type FC/PC, FC/APC, SC/APC, FC/UPC, SC/UPC, LC, None; Attenuation 1-20 dB, Other; Dimensions Ø3.0x55/65, Ø5.0x80, 80x10x8 mm Gooch & Housego’s AFF-X series of fixed attenuators are compact fused fiber components that reduce optical power by a specified amount. Gooch & Housego (G&H) utilizes a proprietary manufacturing technology that provides accurate attenuation with low wavelength, temperature and polarization dependence. Designed for use where optical power levels need to be managed, G&H’s AFF-xxx0 xBxxx components have standard attenuation values ranging from 1 to 20 dB. Standard wavelength windows are the C, L, C+L or S bands. Attenuators may also be optimized for custom attenuation levels, tolerances and wavelengths – contact AMS Technologies to discuss your customized attenuator solution. Key Features: Fixed Attenuation: 1 to 20 dB, Other Values on Request High Performance Low Back Reflection – Return Loss (RL): 55 dB Proven Reliability C, L, C+L or S Band, 1425 to 1605 nm Wavelength Dependent Loss (WDL): ≤0.10 to ≤1.20 dB Polarization Dependent Loss (PDL): ≤0.09 to ≤0.80 dB Fiber Type: Corning SMF-28 Pigtail Length: 0.5, 1 m Connector Type: FC/PC, FC/APC, SC/APC, FC/UPC, SC/UPC, LC, None Custom Parts Available Compliance: Telcordia GR-1221 Dimensions: Ø3.0 x 55/65, Ø5.0 x 80, 80 x 10 x 8 mm Applications: Power Management in Optical Networks; Receiver Protection; WDM System Channel Balancing; Test Equipment; Fiber Lasers; Sensors

Blocking, Pigtail Style; Fiber Type SM, MM, PM; 350 to 2050 nm; Connector Type NTT-FC/PC, ST, SC, LC/PC, other; Attenuation up to 80 dB OZ Optics’ BB-100/400/500/700-11 series of compact PC board mountable blocking pigtail style variable attenuators with low backreflection are designed to meet Telcordia standards. These attenuators 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 collimating lenses, prealigned for optimum coupling efficiency. A threaded radial screw is used to block the collimated beam between the two lenses. Because the attenuator works by directly blocking the beam, it is polarization insensitive. A seal cap is used to seal the junction against temperature and humidity effects. The attenuator can even withstand immersion in water for extended periods of time. Variable attenuators are offered with single mode, multi mode, or polarization maintaining fibers. Key Features: Rugged and Compact Size Wide Wavelength Range Single Mode, Multi Mode and Polarization Maintaining Fiber Versions Low PDL and Wavelength Dependency High Power Handling Wide Attenuation Range 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

Blocking, Receptacle Style; Fiber Type SM, MM, PM; 350 to 2050 nm; Connector Type (Receptacle) NTT-FC/PC, ST, SMA 905, SC; Attenuation 2 dB to 80 dB OZ Optics’ BB-200 series of blocking receptacle style variable attenuators consist of two baseplates with lenses. The two baseplates are aligned for optimum coupling efficiency using a patented alignment technique. A threaded radial screw is used to block the collimated beam between the two lenses. Rotating the screw changes its position within the collimated beam, thus varying the power level coupled into the receiver fiber. Because the attenuator works by directly blocking the beam, it is polarization insensitive. Because of limitations in receptacle tolerances, receptacle style attenuators are not recommended for single mode or polarization maintaining applications requiring low losses and good repeatability. Instead, please refer to the OZ Optics BB-100/400/500/700-11 series of blocking pigtail style variable attenuators. Key Features: Compact, Rugged Housing High Resolution Wide Wavelength Range (350 to 2050 nm) Wide Variety of Connectors Available Polarization Insensitive Applications: CATV, LAN and Telecommunications Use; Receiver Padding; Test and Measurement; Optical Power Equalization

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

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