Fiber Optical 90º Polarization Modulator/Switch - NanoSpeed™

60ns rise/fall, 500kHz, low loss, bidirectional, 850nm to 1620nm, 0 to 70 °C
  • High Reliability
  • High Speed
  • Low loss
  • Compact



The NS Series fiber optical polarization modulator/switch is based on a patented electro-optical configuration, featuring low optical loss and wide temperature operation with built-in compensation. The device dynamically controls the optical phase of the transmitting light, meeting the most demanding requirements of continuous operations over 25 years and non-mechanical ultra-high reliability (passed Telcordia and space qualifications) The device is bidirectional in which the input and output ports are interchangeable.
This device is mounted on a specially designed electronic driver using a 5V TTL control signal through SMA input and a 12V power supply (wall pluggable). The maximum phase change can be adjusted by a pot on the board


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NanoSpeed P Series Switches Min Typical Max Unit
Insertion Loss [1] 1900-2200nm 0.8 1.8 dB
1260~1650nm 0.6 1.0
960~1100nm 0.8 1.3
780-960nm 1.2 1.5
520 – 680nm 1.5 2.3
IL Temperature Dependency 0.25 0.5 dB
Polarization Mode Dispersion (Non PM) 0.1 0.3 ps
Return Loss 45 50 dB
Polarization State Rotation 90 Degree
Analog Modulation rate [2] DC 50 200 KHz
Digital Modulation Rate [3] DC 1 MHz
Optic power Handling [4] Normal power version 300 mW
High power version 10 W
Operating Temperature Standard -5 75 oC
Special version -30 85
Storage Temperature -40 100 oC
[1] Measured without connectors. [2] The phase change is proportionally to the 0-5V control signal [3] The maximum phase change is set at a predetermined value [4] Defined at 1310nm/1550nm. For the shorter wavelength, the handling power may be reduced, please contact us for more information.