AIST: Transmission of 600,000 Blu-ray discs in 1 second: Optical switch
-The power of “optical switch” developed by AIST-
National Institute of Advanced Industrial Science and Technology:
Researchers Rei Matsumoto and colleagues have developed a “silicon photonics optical switch.”
We succeeded in a transmission experiment of 12K 5000 trillion bits per second (Kyo is 10,000 times 1 trillion).
Silicon Photonics Optical Switch:
It corresponds to the capacity to transmit data of 600,000 Blu-ray discs in one second.
The calculation speed of supercomputer Tomitake is 44K 2010 trillion times per second.
In other words, four optical switch networks are equivalent to one Tomitake.
Power saving of supercomputer:
This will lead to power saving in next-generation data centers and supercomputers.
We have created a new type of 32×32 port optical switch.
Connect with optical fiber,
Pass the optical signal 9 times,
Connect nine optical switches in series,
Build a simulated network of optical switches.Network test results:
The signal deterioration was small, and the communication quality could be ensured by error correction technology.
This network has 131,072 ports,
The total capacity of the switch is equivalent to 12K 5000 trillion bits per second.Significant power saving:
The energy efficiency of optical switches is
0.06 pico joules per bit (pico is one trillionth)
It corresponds to “1/500 of the current electric switch”.
We obtained results that lead to significant power savings.New switch
AIST: Achieved 125 million gigabits per second
-World’s largest capacity optical switch technology with over 100,000 ports-
-Expectations for the use of optical switches in next-generation computing-
point
Succeeded in optical transmission experiment using many small low-power silicon photonics optical switches
Accurately predict crosstalk between ports, which is a limiting factor in the past, and maximize network capacity
Expectations for high performance and power saving of next-generation large-scale data centers and supercomputers
Research content
This time, we used the world’s largest silicon photonics 32 x 32 port optical switch.
We analyzed in detail the effect of crosstalk between ports, which is a performance limiting factor.
As a result of creating an optical switch network with 131,072 ports
It has been shown that a total capacity of 125 million gigabits per second can be achieved.
https://www.aist.go.jp/aist_j/press_release/pr2021/pr20210604/pr20210604.html