Fiber In and Free-Space Out Fiber Optical Switch

  • Solid-State
  • High Speed
  • High Reliability
  • Low Loss
  • Compact

Click 'Spec Sheet' for available configurations/part#


The NanoSpeedTM Fiber In and Free-Space Out switches are fast laser beam shutter device featuring very low loss, fast response, and high optical power handling. The design uniquely provides a way to modulate/switch laser beam from a large core fiber. This is achieved using patented non-mechanical configurations with solid-state all-crystal designs, which eliminates the need for mechanical movement and organic materials. The NS fiber-optic switch is designed to meet the most demanding switching requirements of ultra-high reliability, fast response time, and continuous switching operation. The switch is bidirectional. The free space out put has a collimating lens, which can be customer designed.

The NS Series switch is controlled by 5V TTL signals with a specially designed electronic driver having performance optimized for various repetition rate.


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NS Fiber-in Free Space Out Switch Min Typical Max Unit
Central Wavelength [1] 450   2340 nm
Bandwidth (1550nm)     +- 25   nm
Insertion Loss [2]     0.6 1.0 dB
On-Off Ratio [3] 15 25 35 dB
Durability 1014     cycles
PDL (SMF fiber only)   0.15 0.3 dB
ER (PMF fiber only)       18  25   dB
IL Temperature Dependency   0.25 0.5 dB
Return Loss 45 50 60 dB
Response Time (Rise, Fall)     300 ns
Driver Repeat Rate 100kHz driver DC 100          kHz
Optic power

Handling [4]

Normal power   300   mW
High power     5 W
Operating Temperature -15   70 oC
Storage Temperature -40   85 oC

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

[3] Measured at 5kHz, which may be degraded at higher repeat rate. Measured using   a multimode laser with CPR ~14.  Higher CPR lowers the on/off ratio

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