BB-200 Variable Optical Attenuators

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

Pigtail Style, Miniaturized; Fiber Type SM, MM, PM; 780-2000 nm; Connector Type ST, FC, SC, LC, FC/APC, None; Attenuation Range ≥30 dB Gooch & Housego’s MVOA-X series of variable optical attenuators (VOAs) offer high precision and stability over a wide attenuation range, with low excess loss in a compact size. Operated by manually moving a blocking element into the optical path, MVOA-X miniaturized type manual variable optical attenuators are available with single mode (SM), multi mode (MM) and polarization maintaining (PM) fibers in the wavelengths 780, 850, 980, 1064, 1310, 1480, 1550, 1560, 1950 and 2000 nm. Gooch & Housego (G&H) VOAs are used for the power adjustment in optical modules, systems and test platforms. The MVOA-X series operate by precisely adjusting the power to any desired level through a controlled movement of the blocking element. These VOAs are available in 250 μm bare fiber or 900 μm jacket with connector options such as ST, FC, SC, LC and FC/APC. Key Features: Wide Attenuation Range: ≥30 dB Compact Size: 5.6 x 15.2 x 13/18 mm (Screwdriver/Knob Type) Pigtail Style Fiber Type: HI-780C, HI-1060, SMF-28, Nufern SM1950; 50/125, 62.5/125 µm; PM Panda Operating Wavelength: 780 to 2000 nm High Precision High Stability High Reliability Low Excess Loss: ≤0.6 to ≤2.4 dB (Without Connectors) Polarization Dependent Loss (PDL, SM & MM Versions): ≤0.05, ≤0.15 dB Extinction Ratio (PM Versions): ≥18 dB (With Connectors), ≥20 dB (Without Connectors) Return Loss (SM & PM Versions): ≥50 dB (With Connectors), ≥55 dB (Without Connectors) Return Loss (MM Versions): ≥20 dB (With Connectors), ≥25 dB (Without Connectors) Lead Length: 1, 1.5 m, etc. Connector Type: ST, FC, SC, LC, FC/APC, None Applications: Optical Coherence Tomography (OCT) Modules; Optical Test and Measurement Systems; Amplifier Power Control and Equalization; Communication Systems; Optical Sensors

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