Fiber Optical Switch Array – NanoSpeed™

8x (1x2, 2x2, SM, PM)

The NS switch redirects an incoming optical signal among two output optical fibers rapidly controlled by a electrical input voltage from 0 to 5V. This array version integrate up to 8 switches in an ultra compact format.  Each switch can be configurated as 1×1, 1×2, 2×2. The all-solid-state crystal design provides high reliability. The switch has passed Telcordia reliability qualification tests.  It is designed to meet the most demanding requirements of ultra-high reliability, fast response time, and continuous operation.

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 electronic driver having performance optimized for various repetition rate.

Fiber Optical Switch Array - NanoSpeed™

The NS switch redirects an incoming optical signal among two output optical fibers rapidly controlled by a electrical input voltage from 0 to 5V. This array version integrate up to 8 switches in an ultra compact format.  Each switch can be configurated as 1x1, 1x2, 2x2. The all-solid-state crystal design provides high reliability. The switch has passed Telcordia reliability qualification tests.  It is designed to meet the most demanding requirements of ultra-high reliability, fast response time, and continuous operation. 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 electronic driver having performance optimized for various repetition rate.
Variable Fiber Optical Splitter  Min Typical Max Unit
Central Wavelength 450 2000 nm
Insertion Loss[1] 1260~1650nm 0.6 1 dB
900~1260nm 0.8 1.3 dB
760~900nm 1 1.5 dB
650 -850 1.5 1.9 dB
450-580 2 2.5 dB
Cross Talk at 100% splitter [2] 20 25 35 dB
Response Time (Rise, Fall)     5 50 100 Ns
Repetition Rate [3] DC 20 1000 kHz
Polarization Dependent Loss   0.1 0.35 dB
IL Temperature Dependency 0.25 0.5 dB
Polarization Mode Dispersion 0.1 0.2 Ps
Return Loss 45 50 60 dB
Operating Temperature -5 70 oC
Optical Power Handling [3] 300 mW
Storage Temperature -40 85 oC
Package Dimension 65.8×8.5×8.4 mm

[1] Excluding connectors.

[2] Cross talk is measured at 5kHz, which may be degraded at the high repeat rate.

[3] High repetition rate (up to 100 kHz) is available.

[3] Defined at 1310/1550nm. For the shorter wavelength, the handling power may be reduced.

 

 


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.