0-40dB Single-Channel Mini MEMS Variable Optical Attenuator with Low WDL and PDL

The FT-3949 is a compact single-channel MEMS variable optical attenuator that provides precise 0-40 dB attenuation for dynamic optical power control. Based on electrostatic MEMS technology, a movable micromirror on a silicon chip reflects the incoming beam onto the output fiber; adjusting the drive voltage tilts the mirror and sets the desired attenuation level. The mini TO46 hermetically sealed package offers low insertion loss, low wavelength dependent loss and low polarization dependent loss with high attenuation accuracy. With 6.5 V drive and 5 ms response time, the FT-3949 fits power equalization and receiver protection in dense optical systems.

Key Features

• 0-40 dB attenuation range with 6.5 V and 15 V drive voltage options
• Low wavelength dependent loss (max 0.2 dB broadband) and low polarization dependent loss (max 0.15 dB)
• Insertion loss max 0.7 dB; return loss min 45 dB
• Compact hermetically sealed TO46 mini package, 16 x Φ5.4 mm
• Response time max 5 ms; total optical power up to 500 mW; power consumption 10 mW
• Corning SMF-28 9/125 μm fiber; operating temperature -5 to 70 °C; Telcordia GR-1209 and GR-1221 compliant

Applications

• Power control and equalization in multi-channel systems
• Gain-tilt control in EDFAs
• Receiver protection
• OADM networks

For pricing, datasheets and OEM/ODM inquiries, contact the F-tone Networks sales team: una@f-tone.com / betty@f-tone.com · WhatsApp: +86 17761163895