Switchable Fiber Optical Splitter/Coupler

100ns Rise/Fall, Low Loss, All Wavelengths, Bidirectional, Polarization Insensitive
  • High Speed
  • High Reliability
  • Low Loss
  • Temperature Stable
  • Compact

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The Switchable Fiber Optical Splitter in 1×2 format splits an incoming optical signal into two output optical fibers with the capability of switching between two splitting ratios. The initial split ratio should be predefined in design, while the second split ratio will be preset in delivery. When the control signal is low (<0.8V), the splitter sustains an initial ratio. When applying the high control voltage (3~5V), the splitting ratio will be switched from the initial ratio to the secondary one. The device is bidirectional, transmitting light in both directions simultaneously. In the 2×1 format, the input light from two inputs will be split into two outputs in a similar way of the 1×2 format, but the splitting ratio is reversed between the two input lights. The Switchable Fiber Optical Splitter has passed Telcordia reliability qualification tests as well as aerospace qualifications. It is designed to meet the most demanding ultra-high reliability requirements, fast response time, and continuous operation. The switch is intrinsically bidirectional and selectable for polarization-independent or polarization-maintain by the fiber type.
The unit is mounted on a driving board having a control signal input SMC connector and a wall plug-in power supply. Available with several drivers having performance optimized for various repetition rates.
The rise/fall time is intrinsically related to the crystal properties, and the repetition rate is associated with the driver. There are poor frequency response sections due to the device resonances. The NS devices are shipped mounted on a tuned driver.
The NS series switches respond to a control signal with any arbitrary timing with frequency from DC up to MHz. The switch is usually mounted on a tuned driver before shipping. The electrical power consumption is related to the repetition rate at which the switch is operated.
The dual-stage configuration increases the extinction ratio or cross-talk value.


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