1×2 Dual-Stage High Speed Optical Switch – NanoSpeed™

60ns rise/fall, 500kHz, low loss, bidirectional, 850nm to 1620nm, 0 to 70 °C
Download Product Spec PDF

The NS Series dual-stage 1×2 solid-state fiber optic switch connects optical channels by redirecting an incoming optical signal into a selected output optical fiber. This is achieved using patent pending non-mechanical configurations with solid-state all-crystal designs, which eliminates the need for mechanical movement and organic materials. The dual-stage series of NS fiber-optic switch is designed to meet the demand of high cross-talk in addition of ultra-high reliability, fast response time, and continuous switching operation. The device is bidirectional.

Photonwares’ PCB driver listed in the web is recommended to operate this device, featuring high efficiency and low cost with 12V DC power and TTL control signal.

SKU: NSSW, NHSW

1×2 Dual-Stage High Speed Optical Switch - NanoSpeed™

The NS Series dual-stage 1x2 solid-state fiber optic switch connects optical channels by redirecting an incoming optical signal into a selected output optical fiber. This is achieved using patent pending non-mechanical configurations with solid-state all-crystal designs, which eliminates the need for mechanical movement and organic materials. The dual-stage series of NS fiber-optic switch is designed to meet the demand of high cross-talk in addition of ultra-high reliability, fast response time, and continuous switching operation. The device is bidirectional.

Photonwares' PCB driver listed in the web is recommended to operate this device, featuring high efficiency and low cost with 12V DC power and TTL control signal.

NS Series Dual-stage1x2 Switch Min Typical Max Unit
Central wavelength [1] 780 1650 nm
Insertion

Loss [2]

  1260~1650nm 0.6 1.0 dB
960~1100nm 0.8 1.3
780~960nm (Normal

power switch only)

 1.0 1.5
Cross Talk 30 35 45 dB
PDL (SMF Switch only) 0.2 0.35 dB
PMD (SMF Switch only) 0.1 0.3 ps
ER (PMF Switch only)       18  25 dB
IL Temperature Dependency 0.25 0.5 dB
Return Loss 45 50 60 dB
Response Time (Rise, Fall)  30 300 ns
Fiber Type SMF-28, Panda PM, or equivalent
Repeat Rate 5kHz driver DC 5 kHz
100kHz driver DC 100
500kHz driver DC 500
Optic power

Handling [3]

 Normal power switches 300 mW
High power switches 5 W
Operating Temperature -5 70 oC
Storage Temperature -40 85 oC

[1] Operation bandwidth is +/- 25nm approximately at 1550nm.

[2] Measured without connectors. For other wavelength, please contact us.

[3] Defined at 1310nm/1550nm. For the shorter wavelength, the handling power may be reduced, please contact us for more information.

 

 

Spec Sheet (PDF)

Mechanical Drawing

Driver Software


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.

Drivers