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DC-100 kHz Driver for Dual Stage NanoSpeed™ Switches
The NS switch driver provides a convenient way to use the NS series electro-optical switches, which act as a pure capacitive load. Each driver is tuned to a specific device mounted on the PCB. To operate, the customer only needs to plug in the accompanying DC power supply and input a control signal through the golden SMA connector. The switch will be activated as the input voltage exceeds 3V with less than 1µA draw, compatible with 3.3V CMOS/TTL . We produce boards to control multiple NS switches with individual SMA connectors. No computer-based control software is available for such a high-speed operation.
DC-100 kHz Driver for Dual Stage NanoSpeed™ Switches
The NS switch driver provides a convenient way to use the NS series electro-optical switches, which act as a pure capacitive load. Each driver is tuned to a specific device mounted on the PCB. To operate, the customer only needs to plug in the accompanying DC power supply and input a control signal through the golden SMA connector. The switch will be activated as the input voltage exceeds 3V with less than 1µA draw, compatible with 3.3V CMOS/TTL . We produce boards to control multiple NS switches with individual SMA connectors. No computer-based control software is available for such a high-speed operation.Specs | Min | Typical | Max | Unit | |
Rise Time (Tr)[1] | 85 | 100 | ns | ||
Fall Time (Tf)[2] | 85 | 100 | ns | ||
Repetition Rate | DC | 100 | kHz | ||
Pulse Width | 1.0 | ms | |||
Control Input (TTL pulse) | 0 | 5 | V | ||
Power Consumption | 5 | W | |||
Power Current | 0.08 | 0.4 | A | ||
Power Supply | 12 | V | |||
Operating Temperature | -5 | 70 | ºC | ||
Storage Temperature | -40 | 80 | ºC | ||
Electrical Connector | SMA | ||||
Board Size | 3.5(L)x1.25(W) | Inch | |||
Note:
[1]: Optic Intensity Change from 10% to 90% intuits;
[2]: Optic Intensity Change from 90% to 10% intuits;
[3]: Switch Speed (Rise): Duration from begin of electronic signal to end of optic intensity change;
[4]: Switch Speed (Fall): Duration from begin of electronic signal to end of optic intensity change.
Q: Does NS device drift over time and temperature?
A: NS devices are based on electro-optical crystal materials that can be influenced to a certain range by the environmental variations. The insertion loss of the device is only affected by the thermal expansion induced miss-alignment. For extended temperature operation, we offer special packaging to -40 -100 0C. The extinction or cross-talk value is affected by many EO material characters, including temperature-dependent birefringence, Vp, temperature gradient, optical power, at resonance points (electronic). However, the devices are designed to meet the minimum extinction/cross-talk stated on the spec sheets. It is important to avoid a temperature gradient along the device length.
Q: What is the actual applying voltage on the device?
A: 100 to 400V depending on the version.
Q: How does the device work?
A: NS devices are not based on Mach-Zander Interference, rather birefringence crystal’s nature beam displacement, in which the crystal creates two different paths for beams with different polarization orientations.
Q: What is the limitation for faster operation?
A: NS devices have been tested to have an optical response of about 300 ps. However, practical implementation limits the response speeds. It is possible to achieve a much faster response when operated at partial extinction value. We also offer resonance devices over 20MHz with low electrical power consumption.