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How does the MEMS Optical Switch work?

Optical switch, based on MEMS(Micro-Electro-Mechanical System). What is MEMS and how does it work?

Marketing at HYC Co., Ltd, a China manufacturer of fiber connectivity,WDM, PLC splitter and high-density datacom cabling over 19 years.
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Hall of Fame Expert

Re: How does the MEMS Optical Switch work?

Hello hycsystembella,

looking at the following page

https://www.diconfiberoptics.com/products/mems_1_x_n_optical_switches_single_mode.php

 

https://agiltron.com/category/fiber-optic-switches/mems-optical-switches-etmems/

 

These MEME optical switches are adavanced actually optical splitters able to split the signal of a fiber to multiple fibers or to do the opposite with a different device combining the signal of N input fibers into a single fiber.

 

These are very specialized devices that have very specific use like duplicating a signal for network monitoring, in one way video distribution.

 

They do not examine the packets that travel inside the fiber in the modulated optical signal, they can just split or combine optical signals.

Of course the action of splitting can produce N copies of the original signal but with reduced optical power.

 

For an explanation on their working principles you can read

 

https://www.researchgate.net/publication/309168203_MEMS_optical_switch_Switching_time_reduction

there is a pdf document there.

 

Hope to help

Giuseppe

 

4 REPLIES 4
VIP Mentor

Re: How does the MEMS Optical Switch work?

Hall of Fame Expert

Re: How does the MEMS Optical Switch work?

Hello hycsystembella,

looking at the following page

https://www.diconfiberoptics.com/products/mems_1_x_n_optical_switches_single_mode.php

 

https://agiltron.com/category/fiber-optic-switches/mems-optical-switches-etmems/

 

These MEME optical switches are adavanced actually optical splitters able to split the signal of a fiber to multiple fibers or to do the opposite with a different device combining the signal of N input fibers into a single fiber.

 

These are very specialized devices that have very specific use like duplicating a signal for network monitoring, in one way video distribution.

 

They do not examine the packets that travel inside the fiber in the modulated optical signal, they can just split or combine optical signals.

Of course the action of splitting can produce N copies of the original signal but with reduced optical power.

 

For an explanation on their working principles you can read

 

https://www.researchgate.net/publication/309168203_MEMS_optical_switch_Switching_time_reduction

there is a pdf document there.

 

Hope to help

Giuseppe

 

Beginner

Re: How does the MEMS Optical Switch work?

Thanks for your kindly reply. I also found this blog for more information about MEMS optical switch. http://optical-passive.com/

It is based on MEMS technology to control and switch the optical path.  What about MCS?

Marketing at HYC Co., Ltd, a China manufacturer of fiber connectivity,WDM, PLC splitter and high-density datacom cabling over 19 years.
Hall of Fame Expert

Re: How does the MEMS Optical Switch work?

Hello hycsystembella,

thanks for your kind remarks.

About the MCS optical switches:

they work without using micromirrors like the MEMS do.

According to the following document :

https://www.neophotonics.com/multicast-switch-work-part/

 

>> The complex crisscrosses between the top-layer splitters and bottom-layer switches indicate the real need for a photonic integrated circuit, i.e., a planar lightwave circuit (PLC) based on a silica-on-silicon chip. MCSs based on PLC are not only more suited for mass production than other technologies such as MEMS, but can also offer the advantage of small and compact size.

 

The documents also mention that in MCS erbium doped fiber optical amplifiers may be used to improve output power level (to compensate for power loss caused by splitting).

These MCS are actually more complex as they are classified as Optical Add Drop Multiplexer O ADM.

 

They are able to operate OADM  at optical wavelength level:

>> In Fig.1, the traffic is from or to 8 directions. Any one of the 80-96 wavelengths in a particular direction can be dropped to or added from any one of the 16 output or input ports. How this is achieved can described as follows.

 

 

Hope to help

Giuseppe

 

 

 

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